LABOUNTY MSD7R Mobile Shears Instruction Manual

LABOUNTY MSD7R Mobile Shears

Product Information

Specifications

• Product Name: MSD7R Mobile Shears
• Part Number: T129905
• Patents: U.S. PATENT NUMBERS – 5,474,242, 7,240,869, 5,531,007, 7,487,930, 5,992,023, 7,578,461, 7,322,273, 7,832,130, 8,146,256, 8,104,384
• EPO Patent Numbers: 435,702, 737,107, 1,682,299, 1,789,225

Product Usage Instructions

Safety Precautions

It is crucial to follow all safety guidelines provided in the manual and on the equipment. Failure to do so can result in personal injury or property damage.

Operation Procedures

Read and understand the manual thoroughly before operating the MSD7R Mobile Shears. Ensure you know all controls and operating instructions.

Maintenance

Regular maintenance is essential for the proper functioning of the shears. Refer to the Scheduled Maintenance section in the manual for detailed instructions on upper shear build-up, lower shear build-up, and main pivot adjustment.

FAQs

• Q: What should I do if the attachment is not functioning properly?
  • A: Shut down the machine immediately and follow proper lockout, tag, and repair procedures.
• Q: Can I process or handle material with the attachment over the operator’s cab?
  • A: No, it is advised not to process or handle material with the attachment over the operator’s cab for safety reasons.

Safety, Operation & Maintenance Manual
MSD7R Mobile Shears
Part Number T129905

INTRODUCTION

Your safety and the safety of others is a direct result of how you operate and maintain your equipment. Read and understand this manual and other safety information provided with the base machine and be sure that you understand all controls and operating instructions before attempting to operate this equipment. Failure to follow the safety precautions can result in personal injury, death or property damage.
Carefully read all safety messages in this manual and on your equipment safety signs. Keep safety signs in good condition; replace missing or damaged safety signs.
Because LaBounty cannot foresee all hazardous circumstances, the precautions listed in this manual and on the equipment are not all-inclusive. If a procedure, method, tool or part is not specifically recommended by LaBounty, determine whether it is safe for you and others, and that the equipment will not be damaged or made unsafe as a result of your decision to implement it.
The basic rules are summarized in this section of the manual. They also appear throughout the manual along with additional specific rules for safety and operation.

UNDERSTAND SIGNAL WORDS
When you see the following symbols and signal words on your equipment or in this manual, be alert to the potential for personal injury or equipment or property damage. Follow recommended precautions and safe operating practices.
Indicates immediate hazards that WILL result in severe personal injury or death.
Indicates hazards or unsafe practices that CAN result in severe personal injury or death.
Indicates hazards or unsafe practices that could result in personal injury.
NOTICE
Indicates notes of importance to a procedure or part.

Page 2 Section 1 Introduction to Safety

SAFETY SUMMARY

If the attachment is not functioning properly, you must shut the machine down and follow proper lockout, tag, and repair procedures.
NEVER operate equipment without the original equipment safety guards in place, which include ROPS (Rollover Protective Structures and FOPS (Falling Object Protective Structures) cabs. A special applications kit (consisting of a 1/2″ thick Lexan front door and 1/4″ top and rear windows) must be installed on a loader mounted with a shear; doing so prevents objects from entering the cab opening during operation. Use only the approved parts in the kit. Follow the installation instructions exactly. Unapproved window changes or other modifications can cause loss of protection and result in injury or death.
DO NOT process or handle material with the attachment over the operator’s cab.

MSD 7R SHEARS
Clear all persons and equipment from the area of operation and machine movement. NEVER move loads over people or equipment. When viewing the operation of the attachment, maintain a safe distance of at least 75 feet (22.9 meters).
NEVER approach power lines with any part of the machine. Keep clear at a minimum of 15 feet (5 meters).
Avoid tipping. The attachment will alter the lift capacities of the base machine. DO NOT overload the excavator or serious injury could result. Lift capacities will vary if the base machine is not on level ground. Carry loads in recommended positions for maximum stability. Use the recommended excavator counterweight. Use short slings and lift the load only as high as necessary.
DO NOT allow riders on the machine.

DO NOT attempt to shear brittle materials such as axles and railroad rail. Brittle material breaks or shatters instead of shearing. The material being processed could become a projectile and cause injury or death. DO NOT process any material in any position that may propel it toward operator, other workers, buildings or equipment.

DO NOT close the attachment on a structure and reverse the excavator in an attempt to pull down material.

Introduction to Safety Section 1 Page 3

MSD 7R SHEARS
SAFETY SUMMARY continued
NEVER remove any pins unless the attachment is on the ground and blocked up or serious injury or death could result. Metal chips or debris may fly when a connecting pin is struck. Use a brass drift when striking pins and always wear protective clothing and proper eye protection. Pins may fly when struck with force to drive them in or out. Keep people clear when removing or installing pins.
NEVER operate equipment without the original equipment safety guards in place. If the cab glass is missing or damaged, check with your dealer or manufacturer for proper replacement.

Before leaving the operator’s seat, you MUST do the following: 1. Close the jaws of the shear. 2. Rotate the shear to a horizontal position. 3. Lower the lift arms fully. 4. Engage the brake. 5. Stop the engine. 6. Raise the seat bar. 7. Move the pedals until both pedals are locked.
DO NOT weld on any structural member unless specifically authorized by LaBounty. Any unauthorized welding or welding procedures will void the warranty, and may cause structural failure or result in personal injury.

Under no circumstances should any modifications be made to LaBounty equipment without factory authorization.
ALWAYS lower the boom to the ground before leaving the cab. If it is necessary to work on an attachment off the ground, securely support the machine and attachment. DO NOT support the machine on cinder blocks, hollow tiles, or props that may crumble under continuous load. DO NOT rely on a cylinder to hold the attachment in the air. DO NOT work under a machine that is supported only by a jack.
DO NOT let hot hydraulic oil get in contact with the skin as it could cause severe burns. Wear adequate protective clothing and safety equipment. DO NOT tamper with any hydraulic line or component while it is pressurized. Escaping fluid under pressure can penetrate the skin, causing serious injury. Relieve pressure before unhooking hydraulic or other lines. Tighten all connections before applying pressure. Keep hands and body away from pinholes and nozzles which eject fluids under high pressure. Use a piece of cardboard to search for leaks. If ANY fluid is injected into the skin, seek immediate medical assistance.

ALWAYS wear close-fitting clothing and safety equipment appropriate to the job. Safety equipment should be worn at all times when viewing, operating, or maintaining the attachment to prevent injury. Safety equipment includes eye protection, hard hat, steel toe shoes, gloves, and hearing protection.
Keep clear of all potential pinch points, including the moving upper jaw, cylinder connections, bucket linkages or other moving parts.
Before operating the attachment, read and observe all safety instructions in the Operation and Maintenance sections of this manual. If you are unfamiliar with any operation or maintenance procedure, seek instruction before proceeding.

Page 4 Section 1

Introduction to Safety

ATTACHMENT DECALS

MSD 7R SHEARS

LABOUNTY BRAND DECALS (REPLACEMENT DECALS AVAILABLE UPON REQUEST)

SAFETY FIRST DECAL PART NUMBER 503590 (INCLUDED WITH MANUALS) Introduction to Safety Section 1 Page 5

MSD 7R SHEARS
ATTACHMENT DECALS continued
GREASE
GREASE DECAL PART NUMBER 116338

1538 Highway 2 Two Harbors, MN 55616 tel: 1-800-522-5059 fax: 218-834-3879 www.stanleyhydraulic.com Made in the U.S.A. with Global Materials Attachment Model: Serial Number: Year of Manufacture:
Weight:
MODEL/SERIAL NUMBER PLATE PART NUMBER 511045

SAFETY DECAL PART NUMBER 503647

U.S. PATENT NUMBERS

5,474,242

7,240,869

5,531,007

7,487,930

5,992,023

7,578,461

7,322,273

7,832,130

8,146,256

8,104,384

EPO PATENT NUMBERS 435,702 737,107
1,682,299 1,789,225

STANLEY LABOUNTY

1538 Highway 2

1-800-522-5059

Two Harbors, MN 55616

www.stanleyhydraulic.com

FOREIGN PATENTS AND OTHER PATENTS PENDING

116404
PATENT PLATE PART NUMBER 116404

SAFE VIEWING DISTANCE DECAL PART NUMBER 116389
Page 6 Section 1 Introduction to Safety

MSD 7R SHEARS
SECTION 2 ABOUT THE ATTACHMENT Model Description………………………………………………………………………………………………………………………………………………… 2-2 Features ………………………………………………………………………………………………………………………………………………………………….. 2-2 Attachment Terms ………………………………………………………………………………………………………………………………………………… 2-3 Attachment Glossary ……………………………………………………………………………………………………………………………………………. 2-4
About the Attachment Section 2 Page 1

MSD 7R SHEARS

MODEL DESCRIPTION

Since LaBounty mobile shear technology was introduced, many changes have taken place. A wide selection of models and sizes are now available. Product refinements like 360º continuous rotation, high-performance reversed cylinders, tougher steels, and bolt-on replaceable wear parts have altered the look and improved the performance of LaBounty Mobile Shears. MSD Mobile Shears are available in three basic models–Standard Stick, Integral Shroud and Integral Shroud with 360º Option (R). These models are described in this section. Models are available for base machines from 7,500 to 400,000 pounds with a range of cutting depths from 10″ to 76″ available. Optional 360º continuous rotation provides easy, accurate cutting at all angles. High tensile, high alloy, abrasion-resistant steel construction assures long, uninterrupted service–even in the harshest conditions. The main pivot shaft of every model is induction-hardened, ground for long life and pivots on LaBounty’s specially designed bearings. Mobile shears can cut a wide variety of materials including I and H beams, other building materials, steel plate, round stock, wire, rebar and concrete. They are ideal for scrap processing, demolition work, road and bridge reconstruction and in jobs where torching is not possible.
FEATURES
· Added reach reduces machine movement and wear and greatly reduces the need for arm mounting–safety is increased · Made with high-strength, abrasion- resistant steel for durability · Replaceable wear parts for easy maintenance · Four-way indexable blades · Installs in as little as two hours · At-factory upgrading and rebuilding services available for extended life
Page 2 Section 2 About the Attachment

ATTACHMENT TERMS

MSD 7R SHEARS

MOUNTING BRACKET

REMOVABLE COVER PLATE

FRONT CYLINDER PIN

REAR CYLINDER PIN

SHEAR STICK (SHEAR BODY)

FIGURE 1-4

MAIN PIVOT GROUP PRIMARY BLADES
LOWER SHEAR SECONDARY BLADES

UPPER SHEAR FRONT WEAR PLATE (FAR SIDE)
PIERCING TIP
GUIDE BLADE NOSE PLATE

About the Attachment Section 2 Page 3

MSD 7R SHEARS

ATTACHMENT GLOSSARY

Adjustment Plates

Custom-made plates that precisely adjust the lower cutting blades to the upper blades. These plates make it possible to achieve a uniform blade gap on the shear.

Apex

The point where the primary and secondary cutting blades come together.

Blade Gap

The gap between the upper and lower cutting blades as the blades bypass. A very important item that must be maintained regularly to prevent material from jamming in the blades.

Blade Shims

Thin metal shims used to adjust the position of the lower cutting blades to maintain a proper blade gap. Blades should never be shimmed out farther than 0.13″ (3.3 mm).

Build Up

Welding process where worn off parent material is replaced with new metal. A very important maintenance procedure that must be performed regularly throughout the life of the shear.

Control Valve Used in the hydraulic rotation kit to direct flow to the accumulator and back to the hydraulic motor. Manifold

Cross Pattern A method of torquing a circular pattern of bolts down to achieve proper seating. The technique pattern,

Technique

based on a clock face pattern, would follow the order of 12, 6, 11, 5, 10, 4, 9, 3, 8, 2, 7, 1.

Crossover Relief Valve

A hydraulic component used in a rotating shear that limits the amount of hydraulic pressure sent to the rotation assembly. The crossover is preset at the factory and must not be tampered with.

Flow Control Valve

A hydraulic component used in a rotating shear that meters out the hydraulic fluid from the rotation motor. The flow control should be set to limit the rotator from spinning faster than 1 – 2 revolutions per minute.

Front Cylinder The pin that attaches the shear cylinder barrel end to the upper shear. Pin

Front Wear Plate

The area of the upper that contacts the guide blade; it is located on the opposite side of the upper shear from the cutting blades.

Grain of The direction that the parent material was initially rolled at the steel mill. It is very important when Material hardsurfacing any part of the shear to weld with the grain of the steel. Cross-grained hardsurfacing has the
tendency to start cracks in the base material.

Guide Blade

A replaceable component located opposite the cutting blades in the lower shear. The main purpose of the guide blade is to support the upper shear during the cutting cycle.

Guide Blade Thin metal shims used to adjust the guide blade out to maintain the proper guide blade gap. Shims come in Shim Seta designated set that determines when the guide blade will be indexed or replaced.

Guide Blade Gap

The gap between the front wear plate and the guide blade as the upper shear is cycled into the lower. This is an important maintenance item to ensure longevity of the shear’s structure.

Hardsurface

Welding process for protecting the parent material of the shear jaws. The hardsurface acts as a wear surface.

Page 4 Section 2 About the Attachment

MSD 7R SHEARS

ATTACHMENT GLOSSARY

Lower Shear

The lower stationary jaw of the shear. The lower shear contains the lower cutting blades, the guide blade, and the cross blade.

Main Bearing Hardened bushings that the main shaft of the shear rotates on during operation. There are two main bearings, bolted in on both sides of the main pivot group.

Main Shaft

The shaft on which the upper shear pivots causing the shearing action of the attachment.

Manifold Block

Hydraulic block that directs the excavator’s hydraulic flow to the shear cylinder and rotation assembly.

Motor

Hydraulic rotation component that drives the turntable bearing or planetary gear box on rotating shears.

Nose Plate

Steel plate across the front of the lower shear jaw. The profile of the nose plate is a very important maintenance item that must be built up and hardsurfaced to prevent wear of the parent material.

Primary The cutting blades in the shear jaws closest to the shear throat. There is a primary blade in both upper and

Blades

lower shear jaws.

Rear Cylinder Pin that anchors the butt end of the shear cylinder inside the rear of the shear. The rear cylinder pin must be

Pin

greased according to the instructions in this manual.

Rotation Assembly

Hydraulic drive assembly allows full 360° continuous rotation of the shear. This option gives greater positioning capabilities when processing with the mobile shear.

Secondary Blades

The cutting blades in the shear jaws farthest from the shear throat. There is a secondary blade in both the upper and lower shear jaws.

Shear

Hydraulic cylinder that powers the cutting action of the shear. The barrel end of the cylinder attaches to the

Cylinder shear’s upper jaw and the rod end attaches to the rear cylinder lugs. The cylinder rod stays protected from

damage inside the shear.

Shear Stick

The main body of the shear that includes the lower shear. This weldment must be regularly inspected for damage.

Swivel Allows continuous hydraulic flow to the shear cylinder during rotation of shear without twisting hoses. Manifold

Turntable Bearing

Rotary gear bearing used in rotating shears. It is mounted to the shear stick and is driven by hydraulic components in the upper head or mounting bracket. It is sometimes called a slewing ring.

Upper Shear

Movable jaw of the shear that contains cutting blades, the Saber Tip, and the wear area for the slide pucks. The shear cylinder articulates the upper shear into the lower shear to perform the cutting action.

About the Attachment Section 2 Page 5

MSD 7R SHEARS
SECTION 3

INSTALLATION

MSD 7R SHEARS
SHEAR MOUNTING FOR SKIDSTEER MOUNTS
The shear is equipped with a mounting plate that will mount to the loader in the same way as the original equipment. See Figure 3-1. Refer to the loader manual for specific mounting instructions.
SHEAR MOUNTING FOR STICK (OR BOOM) MOUNTS
1. Locate level, firm ground, such as a concrete floor, for installation. Place the shear on the ground with the mounting bracket facing the excavator (figure 3-2). It may be necessary to block up the rear end of the shear to allow the stick or boom tip to be aligned with the mounting bracket. For second member, or boom mounts, it may be necessary to place the shear on the ground upside down with the mounting bracket facing away from the cab (Figure 3-3). 2. Remove the bucket or other attachment following the manufacturer’s recommended procedure. For second member, or boom mounts, the stick will also need to be removed before installing the shear. 3. Take care to plug the hydraulic hoses when disconnected to prevent contamination from entering the hydraulic system. 4. Walk the excavator into position, lining the stick into the stick pivot of the attachment (Figure 3-4). 5. Pin the excavator’s stick and attachment stick pivot together. 6. Use the bucket cylinder, if necessary, to align the excavator bucket linkage with the linkage connection of the shear bracket. Pin this connection together. 7. Double-check all pins, collars, and related fasteners to ensure they are properly installed and tightened. 8. See the electrical and hydraulic installation in this section, pages 3-4, and 3-5.

FIGURE 3-1 FIGURE 3-2 FIGURE 3-3

Page 2 Section 3 Installation

FIGURE 3-4

SHEAR REMOVAL FOR STICK MOUNTS
1. Locate flat, hard ground. With the bottom of the shear facing the operator, set the shear on the ground (figure 3-5). 2. Use blocking to support the bucket linkage and remove the link pin.
Removal of any pin connecting the shear to the base machine can be hazardous. Never remove any pins unless the shear is properly supported on the ground (or blocked up if necessary) or serious injury could result.
3. Fully retract the bucket cylinder after it is detached from the shear mounting bracket (figure 3-6). 4. CAREFULLY remove the hydraulic lines from the shear.
Trapped hydraulic pressure may be present after base machine is turned off. Extreme caution must be taken when removing shear hydraulic hoses or injury or death could result.
5. Cap the open fittings and hose ends to prevent contamination of the hydraulic system. 6. Stand clear and instruct the operator to set the shear flat on the ground (figure 3-7). 7. At this point, be extremely sure the shear is stable before releasing the weight of the shear. 8. Remove the stick pivot pin from the shear.

MSD 7R SHEARS
FIGURE 3-5 FIGURE 3-6 FIGURE 3-7

Installation Section 3 Page 3

MSD 7R SHEARS
ELECTRICAL INSTALLATION
Refer to the appropriate diagram (figures 3-8 and 3-9) below for your type of mount. 1. Install an electrical switch (single pole, single throw momentary type) inside operators cab. This could be either a push button, toggle or foot switch. 2. Install an electrical cord (2 conductor type) from the electrical switch to the shear selector valve solenoid. 3. Install a jump wire from the base machine fuse panel to the electrical switch. This should be live with the excavator key in the “on” position.
DIAGRAM FOR STICK MOUNTED SHEARS

SELECTOR VALVE
MANIFOLD

RECEPTACLE WHITE
GREEN

PLUG WHITE
GREEN

12V DC POWER SUPPLY

GROUND

FIGURE 3-8
DIAGRAM FOR SKIDSTEER MOUNTED SHEARS
ELECTRICAL CORD
SELECTOR VALVE
MANIFOLD FIGURE 3-9

VEHICLE GROUND
GREEN BLACK WHITE
SWITCH POWER

ELECTRICAL CONNECTOR
SWITCH POWER

Page 4 Section 3 Installation

MSD 7R SHEARS

HYDRAULIC INSTALLATION FOR STICK AND SKIDSTEER MOUNTS
Use the following instructions and the skidsteer examples on the following pages to set up your shear hydraulics properly. 1. Connect auxiliary hydraulic lines from the base machine to the hydraulic connections at the rotating head of the shear. This circuit may have been installed from the factory or may require installation. 2. After connecting the auxiliary hydraulic circuit from the base machine to the shear, install an additional 1/4″ diameter case drain line. 3. Lift the boom and slowly engage the rotate function and open and close functions. Watch for hydraulic oil leaks and interference. 4. Follow the hydraulic start-up procedure as described in this manual.

NOTICE
When installation is complete, slowly move the shear through its full range of motion. Check for interference between the shear and the base machine. Contact dealer/factory immediately if any interference occurs

NOTICE
The same auxiliary control device will be used for the open and close circuit and the rotate circuit. To operate the rotate function, the electrical switch will need to be activated.

SELECTOR VALVE MANIFOLD HYDRAULIC SCHEMATIC

IN A FROM BASE MACHINE AUXILIARY
CIRCUIT DRAIN PORT
IN B
FIGURE 3-10

ROTATION MOTOR
Installation Section 3 Page 5

MSD 7R SHEARS
HYDRAULIC CONNECTION EXAMPLE #1
FIGURE 3-11

CASE DRAIN (ADD ON)
AUXILIARY COUPLINGS

FRONT VIEW OF LOADER TOP VIEW OF
MOUNTING BRACKET Page 6 Section 3 Installation

CASE DRAIN SUPPLY LINES

HYDRAULIC CONNECTION EXAMPLE #2
FIGURE 3-12 CASE DRAIN
SHEAR OPEN

MSD 7R SHEARS
ROTATION SUPPLY
SHEAR CLOSE

SHEAR OPEN CASE DRAIN

FRONT VIEW OF LOADER TOP VIEW OF
MOUNTING BRACKET

SHEAR CLOSE ROTATION SUPPLY

Installation Section 3 Page 7

MSD 7R SHEARS
HYDRAULIC CONNECTION EXAMPLE #3
FIGURE 3-13

ROTATION SUPPLY ROTATION SUPPLY

CASE DRAIN SHEAR OPEN SHEAR CLOSE

FRONT VIEW OF LOADER

SHEAR CLOSE SHEAR OPEN CASE DRAIN

TOP VIEW OF MOUNTING BRACKET

Page 8 Section 3 Installation

HYDRAULIC CONNECTION EXAMPLE #4
FIGURE 3-14
STANDARD AUXILIARY COUPLINGS

MSD 7R SHEARS
CASE DRAIN (ADD ON)
AUXILIARY COUPLINGS (ADD ON)

SHEAR CLOSE

FRONT VIEW OF LOADER TOP VIEW OF
MOUNTING BRACKET

SHEAR OPEN
CASE DRAIN SUPPLY LINES

Installation Section 3 Page 9

MSD 7R SHEARS
HYDRAULIC START-UP
With the shear installed on the base machine, it is important that the air be bled from the cylinder by the following procedure. Failure to follow this start-up procedure could result in cylinder seal damage or base machine hydraulic system cavitation. Following the O.E.M. procedures, start and warm up the base machine hydraulic system. Do not operate the shear circuit during this warm-up period. After the base machine hydraulic system has reached normal operation temperature, lower the engine speed to idle. Place the shear in a horizontal position with the cylinder ports on top; this will bleed air from the cylinder. Begin to stroke the shear cylinder back and forth by opening and closing the jaw slowly. Do not open or close the jaw fully at first. After stroking the cylinder a minimum of five times in this manner, fully stroke the cylinder at least five complete cycles. During these start-up procedures, when the cylinder reaches its limit of travel, reverse its direction immediately–do not hold pressure on the cylinder at the end of its stroke. To prevent damage to the hydraulic systems, the base machine hydraulic fluid must be kept at proper levels. To check the fluid level, open the shear jaw completely, lower the shear to the ground, stop the base machine and follow the base machine instructions. Restart the base machine and bring to normal operating speed and again stroke the cylinder through at least five complete cycles. Be sure not to hold pressure on the cylinder at the end of its stroke during these initial procedures. Shut the excavator off and check for hydraulic leaks. For personal safety, do not use your hands to check for hydraulic leaks.
NOTICE
If the shear has been stored or idled for a long period of time, or if any hydraulic lines have been disconnected, these start-up procedures must be performed before putting the shear into operation.
SHEAR STORAGE
1. Block the shear up off the ground using wood blocking. 2. Grease the pins and machined bores of the mounting bracket of the shear (refer to the lubrication instructions in the Maintenance section of this manual). Then apply a generous amount of grease to shear blades, cylinder rod and all other exposed and unpainted surfaces. 3. Install plugs and caps over the quick disconnect couplings.
Page 10 Section 3 Installation

MSD 7R SHEARS
BEFORE YOU START
KNOW YOUR SAFETY PROGRAM
1. Read and understand the safety section of this manual and the base machine manual. 2. Know the employer’s safety rules for your job. Consult your foreman for specific instructions and safety equipment required. 3. Learn the traffic rules at the work site. 4. Know the hand signals used on the job and who is responsible for signaling. Take signals from only ONE person.
KNOW YOUR EQUIPMENT
· Learn the location and function of all controls. Test all controls to ensure proper operation. If any malfunctions are found, shut the machine down and report the malfunction for repair. · Be familiar with the safety devices on the machine, indicators, warning devices and caution instructions. They will alert you to conditions that may make it hazardous to continue operating. · Wear proper protective clothing including hard hat, safety shoes, ear protectors, reflective clothing, safety goggles and work gloves. Loose clothing can get caught in machinery and cause injury. Wrist watches, rings and other accessories can be dangerous, as well. · Know the clearances in the work area.

FIRST THINGS FIRST
1. Ensure all safe viewing distance decals are installed and legible; contact LaBounty for replacements as required. 2. Have a DAILY Safety Dialog with all those with whom you work. Inform them of any out-of-theordinary work that may be planned for the day. Remind them of the safe working distance. 3. Clear the area; inspect. ALWAYS look out for others. In any work area, people constitute a serious safety hazard. Before operating, walk completely around the machine to be sure there are no workers next to, under or on it. Warn nearby workers that you are starting up; DO NOT start up until they are out of danger. 4. Each day before starting, visually inspect the machine by walking around it entirely; check the location of cables, gas lines, and water mains before any operations. Make sure work site footing has sufficient strength to firmly support the machine. When working close to an excavation, position machine with the propel motors at the rear. 5. Once started, keep bystanders clear, especially before moving the boom, swinging the upper structure, or traveling. ALWAYS be alert for bystanders in or near the operating area.
SAFETY DEVICES YOU’LL NEED
Seat belts
Canopies
Falling Objects Protective Structures (FOPS)
Shields and guards
Safety decals
Visual or audible warning devices
Flags and flares
Barricades
Signs and other markings
Warning lights

Page 2 Section 4 Operation

GENERAL RULES FOR SAFE

OPERATION

1. Read the Operator’s Manual for the base machine on which the attachment is mounted. 2. KNOW the capacity of the excavator and its attachments. DO NOT overload the machine or serious injury could result. The attachment may have altered the base machine’s lift capabilities. 3. It is required that a Falling Objects Protection Structure be installed surrounding the excavator cab for all material handling applications. 4. The attachment is for processing materials. DO NOT use the attachment for unapproved purposes or warranty may be voided. 5. DO NOT continuously process oversized materials by forcing them into the shear throat with the downward force of the excavator. This practice is detrimental to the life of the shear and is strongly discouraged. 6. If the shear stalls during processing, scale back the amount of material being processed at one time. Continuously overloading the shear and cycling the excavator to full system pressure can cause overheating and have adverse effects on the shear and the excavator hydraulic system. 7. Whenever possible, cycle the shear cylinder completely during processing. Fully opening and closing the shear allows more hydraulic fluid to circulate through the system to help prevent overheating. 8. Inspect and lubricate the shear daily. Tighten any loose bolts or fittings to the proper torque as specified in this manual. 9. Maintain a safe distance and avoid contact between the excavator and the shear or any material held by the shear jaws. 10. NEVER leave the shear suspended or pass it over people, occupied vehicles, or buildings. 11. When working in confined spaces, keep a watchful eye on exposed parts, such as cylinder rods and hoses, to avoid damage. 12. Maintain at least 15 feet (5 meters) between the shear and any nearby power lines. 13. ALWAYS lower the shear to the ground and turn the base machine off when leaving the machine unattended. 14. DO NOT close the shear on a structure and reverse the excavator in an attempt to pull down material. 15. Avoid collision of the boom or shear, especially when working with limited visibility or inside buildings. Know the height and reach of the shear during operation, transport, and when swinging the excavator.

MSD 7R SHEARS
16. Use machine swing for positioning only. DO NOT use the shear as a jack hammer or wrecking ball. 17. Avoid contact between boom arm or shear stick and overhead obstacles when you operate, move, or haul the machine. 18. DO NOT alter factory preset hydraulics of the shear or vary from the excavator manufacturer specifications. This may void the warranty. 19. DO NOT shear high tensile steel such as railroad rail, spring steel, axles and some types of wire as blade, Saber Tip, and/or upper damage will result. This type of material breaks when processed and can become a projectile which could cause injury or death. 20. To prevent bending the upper shear, DO NOT attempt to shear material stuck through the lower jaw. 21. Before attempting to shear thin material, make sure that the shear blades are sharp and properly adjusted. Otherwise, such material may become jammed in the shear blades. 22. The lifting lugs are to be used for shipping and installation. They are not for use in cable-hung applications. 23. The shear rotation function is for positioning only. DO NOT use it for bending, breaking or prying. 24. DO NOT use the force of the excavator to force the shear into a pile. 25. DO NOT apply excavator force or weight at either end of the upper shear in an attempt to un-jam the shear or to cut materials that are too large for the shear.

Operation Section 4 Page 3

MSD 7R SHEARS
GETTING THE FEEL OF THE SHEAR
Every operating part of any machine has a slightly different “operating feel”–an individual machine response to the movement of the controls. Before starting the first job with a new machine, it is suggested that the operator find an open spot on firm, level ground that’s free of obstructions such as trees, buildings and other equipment. This area must be free of people, too. Move the machine to this area ­ and spend some time just getting to know the “operating feel” of the machine and the shear, which will allow the operator to become familiar with the control levers and the shear before beginning work.
The machine is extremely powerful. Do not operate it carelessly; there is potential for personal injury and equipment damage. Be concerned about safety when preparing to operate the new machine. Ensure safe operation by inspecting the machine as stated in Getting Started Safely. This inspection amounts to a common sense visual check of the machine at the beginning of every operation. Follow a preventive maintenance program; such a procedure will reduce the possibility of costly downtime. Read the Getting Started Safely section of this manual and understand it.
The “fluid” nature of hydraulic power requires a special operating approach to the shear that can be described as a smooth, even technique. The control levers should be moved in a gradual, deliberate way rather than with jerky, abrupt movements. Jerky operation can cause damage and early wear to various parts on the machine, and can also overheat the hydraulic system.
For example, as each control lever is moved forward or backward from the center, or neutral position, the oil flows to the cylinder or motor controlling a function. The component (boom, attachment, etc.) starts to move. The component moves faster as the control lever is moved further forward or backward. Holding the lever in the forward or backward position will hold that movement at a given rate of speed. To slow the movement down, gradually move the lever toward the neutral position. Movement is stopped at the neutral position. The position is maintained until the control lever is moved again.

FEATHERING THE CONTROLS
Feathering the controls is a technique that will increase output and make operating the shear easier. When starting any motion of the machine, move the control slightly from neutral until it starts to move, then smoothly move the control to increase motion to desired speed. Do the same when stopping a motion.

FIGURE 4-1

Page 4 Section 4 Operation

MSD 7R SHEARS
SECTION 5

MAINTENANCE

MSD 7R SHEARS
MAINTENANCE SAFETY PROCEDURES
Before attempting any maintenance procedure, read the entire Safety Manual carefully. If any question arises regarding a safety or maintenance procedure, contact your LaBounty dealer. For the nearest LaBounty dealer, see the Contact Information at the front of this manual.
· Inspect the attachment daily. DO NOT operate a poorly maintained or damaged attachment or major structural damage could result. · ALWAYS lower the lift arms to the ground before leaving the cab. If it is necessary to work on an attachment off the ground, securely support the machine and attachment. DO NOT support the machine on cinder blocks, hollow tiles, or props that may crumble under continuous load. DO NOT rely on the cylinder to hold the attachment in the air. If a control is moved or hydraulic pressure is otherwise released, the attachment will drop. DO NOT work under a machine that is supported solely by a jack. · DO NOT attempt to alter or change the physical, mechanical or hydraulic operation of the attachment during the warranty period without first consulting LaBounty as this could invalidate the Manufacturer’s Warranty. · NEVER operate the machine if an unsafe condition exists. Attach a “DO NOT OPERATE” tag to the machine. · If more than one person is working on a machine, each must be familiar with the controls and aware of what the others are doing. Before working on a machine, BE SURE TO TAG THE CONTROLS SO NO ONE ELSE WILL START IT. · ALWAYS use two people when making checks with the engine running–the operator at the controls must be able to see the person doing the checking. · Keep hands away from moving parts. NEVER lubricate or work on a machine while it is moving. · ALWAYS wear proper safety equipment when maintaining the attachment including safety glasses with side shields, hard hat, steel toe shoes, gloves, and hearing protection. · DO NOT ATTEMPT REPAIRS YOU DO NOT UNDERSTAND. ASK FOR HELP BEFORE STARTING IF YOU ARE UNSURE.
During maintenance of the attachment, it is imperative that the excavator is turned OFF to prevent injury.
Page 2 Section 5 Maintenance

Refer to the proper maintenance procedure in
this manual before servicing the machine to
prevent injury or damage to the equipment.
GENERAL RULES FOR
MAINTENANCE
1. Read the maintenance manual. Be sure all maintenance personnel read and understand all maintenance procedures before they attempt them. 2. Use factory approved parts. Use of parts that are not factory approved may cause damage or unnecessary downtime and void the shear warranty. 3. Lubricate daily; follow the lubrication schedule as outlined on page 5-5. 4. DO daily inspection on blades, blade bolts, guide blade, cylinders and wear surfaces. 5. Use the Inspection Checklists during shear inspections to ensure all maintenance is complete. 6. In extremely cold temperatures, work the shear on lighter materials first before working up to heavier materials. Doing so allows the shear to warm up and makes it less susceptible to damage. 7. To get maximum life from the shear blades, they can be rotated to utilize all four edges. Frequent rotating allows the blades to wear evenly and will increase their life. 8. DO NOT enter the pivot group of the shear without first consulting your dealer or the LaBounty Customer Service Department. Improper adjustment could cause shear damage and may void the shear warranty. 9. DO NOT weld the guide blade into its blade seat. The guide blade is needed for proper adjustment of the shear. DO NOT allow excessive gap between guide blade and front wear plate. 10. DO NOT preheat cutting tip in excess of 450º F (230º C) during build-up and hardsurfacing procedures. 11. DO NOT weld or hardsurface across the grain of the steel at any time. When hardsurfacing, DO NOT exceed two passes of hardsurface rod. 12. DO NOT allow shear blades to wear excessively. Rotate or replace the blades when edges have rounded to approximately 1/4″ (6 mm) radius. 13. DO NOT exceed bolt torque specifications. (See Dry Bolt Torque Chart on page 5-5.) 14. DO NOT disconnect any hydraulic hoses or fittings without first relieving the excavator system hydraulic pressure.
GENERAL RULES FOR MAINTENANCE

CONTINUED 15. DO NOT exert the weight of the excavator on the shear in order to free the upper shear if it becomes jammed. Please consult the factory. Jamming is the result of poor maintenance or improper operational techniques. 16. DO NOT let hot hydraulic oil get in contact with the skin as it could cause severe burns. 17. DO NOT operate a rotating shear without a case drain line connected back to the tank or return line filter (rotating shears only), or the rotation component will be damaged.
PERIODIC SERVICE SCHEDULE
SERVICE THE SHEAR SHEAR AT SPECIFIED INTERVALS
Inspect, lubricate, make service checks and adjustments according to the 8-hour and 80-hour Inspection Checklists reproduced from this manual. A program of regular service should be established, using the machine hour meter to determine when the shear should be serviced. Use the intervals on the Service Schedule when operating in normal conditions. Service the shear at shorter intervals when operating in extreme environmental or abrasive conditions.
USE CORRECT LUBRICANTS AND BOLT TORQUES
Refer to the Lubrication and Bolt Torque instructions in this manual when performing maintenance on the MSD7R attachment.
8-HOUR SERVICE RECOMMENDED

MSD 7R SHEARS
Inspect Safety Devices: Make sure all decals are installed and legible. Inspect the condition of the cab protection and make sure visual and audible warning devices are working properly. Make all repairs before using the equipment. Grease Fittings: Lubricate according to the shear Lubrication section (page 4-12 and 4-24). Replace broken fittings. Connecting Pins: Inspect for tightness and/or damage or wear on the boom pivot pin and shear cylinder pins. Check pinheads and pinstops. Bolts: Check for looseness or damage. Torque if necessary according to the proper torque chart in this manual. Bolts may be retorqued once then must be replaced. Guide Blade Gap: Inspect. If the gap exceeds 0.030″ (0.75 mm), refer to manual for maintenance procedures. Primary and Secondary Blade Gap: Inspect. If gap exceeds 0.10″ (9.25 mm), refer to manual for blade shimming procedure. Piercing Tip: Inspect piercing tip for square fit in lower jaw. Refer to manual for maintenance procedure. Lower Piercing Tip Area: Inspect for wear indicating build-up or hardsurfacing is required. Refer to manual for maintenance procedure. Hoses, Connections, Cylinders: Inspect for leaks, wear and damage. Tighten, repair or replace. Rotator (If equipped): Inspect all bolts connecting the turntable bearing to the head and shear for torque and/or damage. Bolts must be replaced if retorque is necessary. Refer to torque tables on page 6-3. Visually inspect these bolts in all following 8-hour checks.
80-HOUR SERVICE RECOMMENDED
Blades: Measure blade gap, rotate/replace and shim blades according to procedures in this manual. Upper Shear: Inspect piercing tip, wear plate and upper. Refer to manual for build-up, hardsurface or replacement. Lower Shear: Inspect guide blade, nose blade, and lower shear. Refer to manual for build- up, hardsurface or replacement instructions. Rotator (If equipped): Inspect all bolts connecting the turntable bearing to the head and shear for torque and/or damage. Bolts must be replaced if retorque is necessary. Refer to torque tables on page 6-3.
8-HOUR INSPECTION CHECKLIST
Attachment Model _____Excavator
Maintenance Section 5 Page 3

MSD 7R SHEARS
Hour Meter____
Attachment Serial Number __ Date__
1. Visually inspect shear for any damage
2. Inspect safety devices a. All safety decals in place and legible – see decal and label maintenance section b. All cab protection in good condition c. All excavator warning systems working
3. Lubricate all points. Refer to shear lubrication in this section a. Each side of main pivot group (2 each side) b. End of slide puck assemblies (each side) c. End of front cylinder pin d. End of rear cylinder pin e. Boom pivot connection of mounting bracket f. Cylinder connection of mounting bracket
4. Inspect connecting pins and pin retaining hardware a. Boom pivot pin of mounting bracket b. Cylinder connection pin of mounting bracket c. Front shear cylinder pin d. Rear shear cylinder pin e. Pinheads and pinkeepers
5. Inspect all bolts a. Visually inspect all bolts and replace any that are loose or damaged
6. Check guide blade gap a. Refer to manual if gap exceeds 0.030″ (0.76 mm)
7. Check cutting blade gap a. Refer to manual if gap exceeds 0.010″ (0.25 mm)
8. Inspect piercing tip a. Piercing tip fits squarely in lower shear piercing area
9. Inspect lower shear piercing area a. Piercing tip fits squarely in lower shear piercing area
10. Inspect Hydraulic System a. Inspect hoses for wear and potential failure b. Inspect hose connections for leaks c. Inspect cylinder for leaks
Inspected by:

Attachment Model _____Excavator Hour Meter____
Page 4 Section 5 Maintenance

MSD 7R SHEARS
80-HOUR INSPECTION CHECKLIST
Attachment Serial Number __ Date__ 1. Inspect blades
a. Rotate or replace all blades b. Measure blade gap, refer to manual for shimming procedure and tolerance range 2. Inspect upper shear a. Build-up and hardsurface piercing tip b. Repair wear area c. Build-up and hardsurface upper 3. Inspect lower shear a. Build-up and hardsurface lower piercing area b. Build-up and hardsurface lower If Rotator equipped: 1. Inspect all bolts connecting the turntable bearing to the upper head and shear a. Replace bolts if retorque is necessary Inspected by:

Maintenance Section 5 Page 5

MSD 7R SHEARS
8-HOUR INSPECTION ROTATOR CHECKLIST
Attachment Model ___Excavator Hour Meter____ Attachment Serial Number __ Date__ _ 1. Visually check all turntable bearing bolts and replace any that are loose or damaged 2. Grease the turntable bearing – refer to the Rotator Maintenance section for instructions 3. Inspect the rotation hydraulics system a. Inspect rotation hoses for wear and potential failure b. Inspect rotation hose connections for leaks ___ 4. Visually check all rotation assembly bolts Inspected by:

Page 6 Section 5 Maintenance

MSD 7R SHEARS

GENERAL TROUBLESHOOTING CHECKLIST
The General Trouble Shooting Check List is provided as a guide in checking the general condition of the attachment. This checklist should be incorporated in a periodical preventive maintenance program as part of the 80-hour inspection.

UPPER SHEAR
a. Throat Area b. Apex c. Torque Tube d. Spherical Bearing e. Bolt Holes f. Blade Seats

Inspect for cracks. Inspect for cracks.
Inspect for cracks on the parent material and in the weld. Inspect for proper alignment, greasing and bearing operation. Inspect for cracks. Inspect for material cracks, weld cracks and excessive wear.

LOWER SHEAR
a. Nose Plate b. Blade Seats c. Guide Blade Seat d. Front Build-up Area e. Bolt Holes

Inspect for weld failure and excessive wear. Inspect for material cracks, weld failure and excessive wear. Inspect for material cracks, weld failure, excessive wear, broken structure. Inspect for cracks and excessive wear. Inspect for cracks.

GENERAL WEAR AND MAINTENANCE ITEMS

a. Blades

Inspect for excessive wear, broken pieces, cracks.

b. Blade Gap

Inspect the blade gap; should be 0.005 to 0.010″ (0.13 to 0.25 mm).

c. Guide Blade

Inspect for excessive wear and cracks.

d. Guide Blade Gap

Inspect to make sure the gap is within 0.030″ (76 mm).

e. Piercing Tip

Inspect for weld failure, excessive wear and damaged or missing component.

f. Front Wear Surface

Inspect for excessive or uneven wear and damage.

Maintenance Section 5 Page 7

MSD 7R SHEARS

CUTTING PERFORMANCE TROUBLESHOOTING GUIDE
The information contained in this guide provides for troubleshooting the LaBounty shear only. Any references to the base machine will be made only to give some guidance as to where a problem may exist. Any specific maintenance and/or troubleshooting information will need to be provided by the original equipment manufacturer of the base machine or the authorized dealer. If a question arises regarding the operation or maintenance of the attachment, contact a LaBounty dealer for proper procedure.

SYMPTOM 1. Upper shear will not move

PROBABLE CAUSE
a. No hydraulic fluid to the shear cylinder

REMEDY
i. Check for hydraulic flow at the hydraulic lines to the manifold. ii. Check base machine hydraulic circuit.

b. Broken hydraulic swivel (if rotator) i. Replace swivel and flush hydraulic circuit.

2. Cutting speed is extremely slow

a.Base machine oil supply (flow) is too low

b. Hydraulic cylinder seal bypass c. Hydraulic lines are kinked d. Hydraulic swivel seal bypass

i. Check the flow to the attachment and compare with the recommended flow (see hydraulic letter for attachment). ii. Check for excessive back pressure. iii. Check base machine’s hydraulic system.
i. Check for cylinder seal bypass; replace seals if necessary.
i. Check hydraulic lines; replace any damaged lines
i. Check for seal bypass (consult your dealer service department for instructions). Install new seal kit if necessary.

3. Upper shear moves too rapidly

a.Hydraulic flow to shear is excessively high

4. Upper shear drifts open or closed

a. Machine hydraulic valve is open center type
b.Machine control valve is faulty

c. Hydraulic cylinder seal bypass
d. Hydraulic swivel bypass (if rotator)

i. Reduce flow to attachment
NOTE The attachment may be damaged if flow exceeds
the recommended GPM.
i. Check hydraulic circuit to verify. Replace with closed center spool type.
ii. Refer to machine maintenance manual – check for sticky spool – check for circuit relief valve bypass – check for spool seal bypass (if applicable)
i. Check for seal bypass; replace seals if needed
i. Check swivel for bypass; replace seals if needed

Page 8 Section 5 Maintenance

MSD 7R SHEARS

CUTTING PERFORMANCE TROUBLESHOOTING GUIDE
continued

SYMPTOM 5. Material jams

PROBABLE CAUSE a. Excessive blade gap in jaws

REMEDY
i. Add blade shims (refer to blade shimming procedure) ii. Replace worn blades

b. Worn piercing tip

i. Build-up and hardsurface existing tip to maintenance specifications ii. Rotate blades iii. Replace, if all four edges are dull, with LaBounty approved blades

c. Blade not within LaBounty specifications

i. Replace with LaBounty approved blades

d. Excessive guide blade gap

i. Add guide blade shims (refer to guide blade shimming procedure ii. Rotate guide blade or replace when both sides are worn

e. Worn lower, lack of build-up and hardsurfacing

i. Perform build-up and hardsurfacing on lower shear (refer to maintenance procedures)

6. Blade gap is uneven

a. Non-LaBounty blades being used

b. Debris in blade seat behind blades

c. Inconsistent amount of blade shims between primary and secondary blades

7. Individual hydraulic function is slow

d. Upper shear is bend a. Pilot control hoses pinched
b. Jumpline or connections leaking

c. Base machine hydraulic malfunction

d. Circuit relief valve for the function is set low or malfunctioning

i. Replace with LaBounty approved blades
i. Remove blades from blade seats and clear all debris from behind i. Reshim blades for consistency (refer to blade shimming procedure
i. Consult the factory for repair i. Inspect and correct i. Inspect and correct i. Check base machine hydraulic system
i. See your basic machine dealer

Maintenance Section 5 Page 9

MSD 7R SHEARS
SHEAR LUBRICATION
Grease all points every 8 hours of shear operation. See figure 5-1. Use premium grease No. 2EP or equivalent. Grease fitting locations are indicated by GREASE decals on the shear.
4

2 FIGURE 5-1

1 3

LOCATION ON SHEAR
1 One in cylinder rod end 2 One in cylinder butt end 3 One in main pivot shaft 4 Turntable bearing (refer to rotator section)

NUMBER OF SHOTS
6 6
6

Page 10 Section 5 Maintenance

MSD 7R SHEARS
BOLT TORQUE SPECIFICATIONS
1. All bolts checked for proper torque after eight (8) hours of initial use and then inspected visually every eight (8) hours thereafter. 2. All SAE Grade 8 bolts or metric class 10.9 may only be retorqued after the initial eight hours break-in period, then must be replaced if retorquing is required again. 3. Check the blade bolts every eight hours of shear operation and re-torque if necessary. Bolts may be retorqued only once and then replaced. 4. Check all shear connecting pins and pin retaining bolts daily to ensure that they are in place and properly secured. Pins that must be checked are:
a. Main Pivot b. Cylinder Rod End Pin c. Cylinder Butt End 5. All bolts and their respective tapped holes must be free of grease and contaminants before installing to ensure a proper seat for a bolt torque.
Disassembly of any pin connected attachment can be hazardous. Never remove any pins unless the attachment is on the ground (and blocked up if necessary) or serious injury or death could result.
NOTICE
If replacement of any bolt or nut is necessary, it MUST be replaced with an SAE Grade 8 or a Metric Class 10.9 only.
Maintenance Section 5 Page 11

MSD 7R SHEARS
BOLT TORQUE GUIDELINES
Proper bolt installation is critical to ensure the safe and efficient operation of the shear. Carefully follow the steps below to properly install bolts. 1. Always replace bolts and nuts with the same size and class of fastener. Replacement fasteners can be ordered from the LaBounty Parts Department to ensure the correct part is used (refer to figure 5-2). Unless otherwise specified, use class 10.9 metric hex head capscrews, class 10.9 metric flat head capscrews, and class 12.9 metric socket head capscrews. 2. Make sure bolts, nuts and bolt holes are free of dirt, oil, grease and other contaminants. 3. If necessary, use the Capscrew Size Guide on this page to help determine the size of the bolt being installed. 4. Use the Dry Bolt Torque Chart on this page to find the proper torque. Do not use any thread adhesives when using dry torque values. When possible, torque the nut rather than the bolt head.

METRIC CAPSCREW SIZE GUIDE

CAP-

A

B

C

A

SCREW SIZE

HEX HEAD

FLAT HEAD

SOCKET HEAD

HEX HEAD

M10 X 1.50 0.63″ (16mm) 0.79″ (20mm) 0.63″ (16mm)

M12 X 1.75 0.71″ (18mm) 0.94″ (24mm) 0.71″ (18mm) B
M14 X 2.00 0.83″ (21mm) 1.06″ (27mm) 0.83″ (21mm)

FLAT HEAD

M16 X 2.00 0.94″ (24mm) 1.18″ (30mm) 0.94″ (24mm)

M20 X 2.50 1.18″ (30mm) 1.42″ (36 mm) 1.18″ (30mm)

C

M24 X 3.00 1.42″ (36mm)

N/A

1.42″ (36mm)

SOCKET HEAD

M30 X 3.50 1.81″ (46mm)

N/A

1.77″ (45mm)

FIGURE 5-2

Page 12 Section 5 Maintenance

DRY BOLT TORQUE CHARTS

METRIC CLASS 10.9

SIZE M10 x 1.5 M12 x 1.75 M14 x 2 M16 x 2 M20 x 2.5 M24 x 3 M30 x 3.5

FT-LBS 53 92 146 224 435 752 1511

N-M 72 125 198 305 590 1020 2050

METRIC CLASS 12.9

SIZE M10 x 1.5 M12 x 1.75 M14 x 2 M16 x 2 M20 x 2.5 M24 x 3 M30 x 3.5

FT-LBS 64 110 177 269 523 899 1806

N-M 87 150 240 365 710 1220 2450

MSD 7R SHEARS
Always replace bolts and nuts with the same size and class of fastener. Inferior fasteners can fail and cause injury or death and damage to the equipment.
NOTICE
It is preferred to apply torque to the nut rather than the bolt head wherever possible.

Maintenance Section 5 Page 13

MSD 7R SHEARS
GUIDE BLADE SHIMMING AND ROTATION
The guide blade helps keep the shear blades in line and must be checked daily. See figure 5-3. 1. With the shear partially closed so the upper wear area is in contact with the guide blade, check the gap between the wear area on the upper and the guide blade. Cycle the upper and check in several spots. Shim to the smallest gap.The gap must not exceed 0.030″ (0.76 mm). 2. Shims have been provided for shimming out the guide blade. Four (4) are 0.023″ (0.53 mm) thick; one (1) is 0.12″ (3 mm) thick. 3. When five (5) shims have been placed between the guide blade and seat, the guide blade can then be turned end for end and re-shimmed for proper gap. Once all five shims have been used again the guide blade is worn out and must be replaced. 4. If a gap still exists between a new guide blade with a full amount of shims and the upper wear area, the wear area must be built up. Refer to Upper Shear Wear Surface Build-up on page 5-21.

Wear gloves at all times during blade maintenance.

LOWER SHEAR

UPPER SHEAR

WEAR SURFACE

GUIDE BLADE

Page 14 Section 5 Maintenance

0.030″ (0.76MM) OR LESS

FIGURE 5-3

BLADE ROTATION
New blades in proper adjustment will increase the cutting performance of the shear. Proper rotation of blades will provide optimum use and the most performance from the shear. Recommended blade rotation is after approximately 80 hours of use; depending on the material being processed, this interval may be extended.
When processing thin materials, blade rotation and shimming is of greater importance than when processing larger materials. It may be necessary to shorten blade rotation intervals when processing thin or non-ferrous materials.
When processing large materials, frequent blade rotation will extend the life of the blades, however maintaining the close tolerance blade gap is not as important. Never operate a shear when the blades have rounded to a 1/4″ (6.4 mm) radius of more. Maintaining the guide blade gap is still necessary in large material.
1. To rotate the blades, remove blade from shear. Do one blade at a time. 2. Grind all rough edges from blade. 3. Clean out blade seat. 4. Reinstall blade. The first time the blade is rotated it should be done end for end. The second time flipped over; third time end for end. 5. When the blades have been used on all four edges and edges are 1/4″ (6.4 mm) radius or more, it will be necessary to rework or replace blades.
Remember, with damaged or badly worn blades, cutting ability decreases tremendously and it may eventually cause structural damage to the shear.

PRIMARY BLADE

MSD 7R SHEARS

FIGURE 5-4

SECONDARY BLADE

Maintenance Section 5 Page 15

MSD 7R SHEARS
BLADE SHIMMING
Blade rotating is recommended every 80 hours of shear usage in order to assure uniform wear so shimming is possible.
After rotating the blades the final time, there is a possibility there will be a slight gap between the upper and lower blades, and shimming of the lower blades may be necessary. A blade gap of 0.005″ to 0.010″ (0.13 to 0.25mm) should be maintained to prevent jamming, especially when cutting light material.
1. To check for blade gap, cycle the shear closed so the secondary blades in the upper and lower start to bypass. Using a feeler gauge between the upper and lower blades, check the blade gap and record it. 2. Cycle the shear closed so the secondary blades start to bypass at the apex (see figure 5-5). Check the gap at this point using a feeler gauge and record this measurement also. If the blades have been rotated properly, and at the right intervals, the gap in the secondary blades should be fairly even or the entire span of the blades.
Keep hands away while moving the upper shear. Do not move upper while checking blade gap
with feeler gauge.
3. The amount of shims that are installed behind the blades should be approximately five thousandths (0.005″) (0.13 mm) of an inch less than the measurements you recorded earlier. DO NOT exceed one hundred twenty-five thousandths (0.125″) (3.2 mm), or you may cause structural damage to the shear, and warranty may be voided. 4. We recommend keeping the blades with the least amount of wear in the upper jaw; shim only the lower blades. 5. To install the shims, loosen blade bolts and slide the shim between the blade seat and the blade to be shimmed and re-tighten the blade bolts. 6. Use the same procedure for shimming the primary blade. 7. Cycle the shear slowly and check that the gap is not too tight in the throat area, and then recheck tolerances. Maintain this shimming procedure to maintain maximum shearing efficiency and blade life. However, if the blades are not rotated every 80 hours, shimming may not be possible because of uneven wear on the blades.

BLADE SHIM

THROAT AREA

APEX

FIGURE 5-5

Page 16 Section 5 Maintenance

MSD 7R SHEARS
GENERAL BUILD-UP AND HARDSURFACING
It is recommended that the upper piercing tip and lower piercing tip seat be maintained every 80 hours, while correct hardsurfacing of the upper and lower shear need only be done periodically. If the shear is in a severe piercing application, the interval for piercing tip maintenance may need to be shortened. Excessive hardsurfacing can damage the shear and affect the shears performance. Allow the hardsurfacing to wear down or away before hardsurfacing again. Never apply more than two layers of hardsurfacing. The quality and attention to detail in welding can significantly affect the life of the shear. LaBounty strongly recommends that only certified welders be used.
NOTICE
It is recommended that build-up and hardsurfacing be performed at the end of the work day to allow adequate time to cool.
Strict adherence to the welding rod manufacture’s handling and storage instructions is essential. Electrodes exposed to the atmosphere for more than four hours must not be used–the moisture absorbed by the electrode covering will change the mechanical properties of the weld, which can cause cracks and porosity in the weld or adjacent base metal.
LaBounty recommends that you use AWS E7018 rod or equivalent for build-up. After vigorously peening each pass, the hardsurfacing is placed directly on top of the E7018 beads. The E7018 becomes the bonding or underlayment for the hardsurfacing. This will help reduce the chances of having the hardsurfacing material crack.
LaBounty recommends using Amalloy 814 rod or equivalent for hardsurfacing. Do not use stainless hardsurface rod; for LaBounty applications it is too brittle and cracks, weakening the base metal.
All blade maintenance must be done before upper piercing tip build-up and hardsurfacing. Upper piercing tip must be done before lower piercing tip seat. Complete piercing tip maintenance before any upper and lower shear build-up and hardsurfacing.
GENERAL PROCEDURE
1. Clean all dirt and grease from the area to be built-up. 2. Remove the worn hardsurfacing by grinding to the base metal. Do not build-up on top of any hardsurface material. 3. Pre-heat the surrounding area to at least 200ºF (100ºC) to remove moisture. Preheat the area to be built up to 300-400ºF (150-200ºC). Use a temp stick to verify that this temperature is obtained and maintained throughout the welding process. Temperatures in excess of 450ºF (230ºC) may harm parent metal. 4. Build up and restore any worn or damaged surfaces with E7018 (or equivalent). Each pass must be stress relieved by peening vigorously. Grind edges to 90º. 5. Hardsurface as instructed in this manual. It is not necessary to cover the entire surface with hardsurfacing to be effective. Vigorously peen the hardsurfacing to stress-relieve and work- harden the material. 6. Post heat to 300-400ºF (150-200ºC); cover with heat blanket and allow to cool.
Maintenance Section 5 Page 17

MSD 7R SHEARS
GENERAL BUILD-UP AND HARDSURFACING continued
IMPORTANT 1. ALWAYS hardsurface in the direction of the grain of the steel (see figure 5-6). 2. Use an air operated slag peener on each pass of all welds to stress relieve. 3. DO NOT start and/or stop bead in the apex between blades. 4. DO NOT start and/or stop bead within 1″ (25mm) of a blade bolt hole. 5. Stagger the ends of the adjacent beads. DO NOT stop or start beads in a straight line with each other. 6. Grind end of hardsurfacing bead smooth, tapering for 1-1/4″ to 1-1/2″ (31-38mm) to parent material. DO NOT undercut with grinder. Grind marks going with the grain. 7. DO NOT hardsurface into the throat area of the lower or upper shear; doing so can cause surface cracks which may develop into major structural failures. 8. Check temperature frequently to maintain 300400ºF (150-200ºC). DO NOT exceed 450ºF (230ºC). 9. NEVER operate a shear following repairs without first allowing it to cool slowly to ambient temperature.

THROAT STAGGER WELDS
APEX

DIRECTION OF GRAIN
FIGURE 5-6
Paint removal and grinding can be hazardous and cause personal injury. · Remove paint before welding or heating. Hazardous fumes can be generated when paint is heated. · If you sand or grind paint, avoid breathing the dust. Wear an approved respirator. · If you use solvent or paint stripper, remove stripper with soap and water before welding. Remove solvent, paint stripper containers and other flammable material from area. · Provide a fire extinguisher during all cutting and welding operations. Clean areas to be cut or welded of oil and flammable materials. Protect all flammable areas from sparks. · Do all work in a well-ventilated area. Dispose of paint and solvent properly.

Page 18 Section 5 Maintenance

UPPER PIERCING TIP BUILD UP AND HARDSURFACING
Blade maintenance must be performed before any piercing tip build-up or hardsurfacing is done.
For maximum piercing efficiency, the piercing tip should be checked daily for wear. If the tip is badly worn, build-up and hardsurface is required.
It is recommended that piercing tip maintenance be done at the end of the working day to allow adequate cooling time before putting the shear back into production.
1. To check for wear, close the shear to a position that the piercing tip is just entering into the lower jaw of the shear (see figure 5-7). The piercing tip should fit squarely into the lower jaw. To determine how much build-up is required, place a straight edge along cutting blades and extend beyond tip, or use the upper template supplied by LaBounty. There will be a gap indicating how much build-up is required (see figures 5-8 and 5-9). 2. Clean all dirt and grease from area to be built-up. 3. Preheat the area to be built-up and the surrounding area to 300 – 400° F (150 – 200° C) (use melt stick). Test area frequently, as overheating can harm the shear (maximum 450°F / 230° C). Temperature/ melt sticks are available from LaBounty. 4. Apply AWS E7018 welding rod. Each pass must be stress relieved and slag removed by peening vigorously. 5. To hardsurface the build-up just completed, using Amalloy 814 or equivalent, apply single passes, 1/2″ (13 mm) apart. No more than two layers of this rod should be used. 6. When build-up and hardsurfacing are complete, grind weld square. After welding and grinding have been completed, peen the welded area until it is shiny or until the peener cannot dent the weld anymore (five to ten minutes). This will work harden the welded area.

MSD 7R SHEARS
NOTICE
Check temperature often during this procedure. (Maintain 300 – 400ºF/150 – 200ºC.)
NOTE WEAR FIGURE 5-7
STRAIGHT EDGE FIGURE 5-8

BUILD-UP TEMPLATE FIGURE 5-9
LOWER PIERCING AREA
Maintenance Section 5 Page 19

MSD 7R SHEARS

BUILD-UP AND HARDSURFACING
In order to perform maintenance on the lower piercing area, all blade maintenance and piercing tip maintenance must be completed. LaBounty shears have hardsurfacing on the lower portion and the nose plate, across the front and along the top, and back along the lower to the cutting blade and guide blade.
Normal intervals for hardsurfacing vary with application. Use of the shear in a scrap application generally requires a 160 – 200 hour interval for hardsurfacing. Use of the shear in a demolition application of brick and concrete may be subject to a shorter interval of 80 – 120 hours. The initial hardsurfacing should be performed after approximately 40 hours of normal use. It is absolutely necessary that the lower portion of the shear be maintained routinely by the following process.
1. Place the shear in a horizontal position and block it up about 18″ high, or preferred working height. Use a straight edge on the inside of the shear blades and on the guide blade (see figure 5-10) or a the lower profile template supplied by LaBounty (see figure 5-11) to determine how much build-up and hard surfacing is required . 2. Clean all dirt and grease from area to be built-up. 3. Remove any existing hardsurface material down to base metal by grinding. 4. Preheat the area to be built-up and the surrounding area to 300 – 400°F (150 – 200°C) (use melt stick). Test area frequently, as overheating can harm the shear (maximum 450°F / 230°C). Temperature/melt sticks are available from LaBounty. 5. For AWS E7018 build-up, start inside the lower in front of the shear blade (see first figure 5-10), make single passes side by side until area is covered. Repeat the process on the guide blade side (see second figure 5-10) and inside the nose plate. Peen each pass.

START BUILD-UP HERE
FIGURE 5-10

FINISH BUILD-UP HERE

Page 20 Section 5 Maintenance

FIGURE 5-11

BUILD-UP TEMPLATE

LOWER PIERCING AREA BUILD-UP AND HARDSURFACING continued
IMPORTANT Check temperature during this procedure. (Maintain 300-400°F/ 150-200°C.)
6. To hardsurface the build-up just completed, we recommend using Amalloy 814 or equivalent. Apply single passes side by side with the grain. Start approximately 2 – 3″ (50 – 75 mm) down the inside of the piercing tip seat, running the length of the shear and across the inside of the nose plate (see figure 4-12). Peen each pass. No more than two layers of this rod should be used.
IMPORTANT It is important to use an air operated slag peener on each pass of weld to relieve stress. Grind off in line with cutting edges.
7. Hardsurface the top side of lower 1½ – 2″ (38 – 50 mm) wide (figure 5-12) using the same preheating, welding and peening procedure. Be sure to weld with the grain of the steel (see figure 5-13). 8. Grind lower to a sharp edge on each side. After welding and grinding has been completed, peen the welded area until it is shiny or until the peener cannot dent the weld anymore (5 to 10 minutes each side). This will work harden the welded area. 9. Be sure to cover the lower with a heat blanket when build-up is complete to allow it to cool slowly.
The hardsurfaced area acts like an extension of the blades. Following these procedures will make cutting easier and prolong the life of the blades and guide blade.

MSD 7R SHEARS
APPROXIMATELY 2 – 3″
FIGURE 5-12 GRAIN

GRAIN FIGURE 5-13
Maintenance Section 5 Page 21

MSD 7R SHEARS
HYDRAULIC SYSTEM MAINTENANCE
Use the following instructions to safely perform hydraulic checks and maintenance on the attachment.
1. ALWAYS relieve all hydraulic pressure of the excavator–by working controls in both directions with the engine off–before attempting to work on any hydraulic component. 2. Shut off the base machine and check the hydraulic system pressure. It should be zero (0) PSI. There is a diagnostic port on the shear manifold to check the pressure; the 1/4″ NPTF (-1/4-18) plug will need to be replaced with an adapter fitting for your test gauge. 3. Hydraulic oil becomes hot during operation. DO NOT let hot hydraulic oil get in contact with the skin as it could cause severe burns. 4. Check all hydraulic components (hoses, fittings, mounting hardware, etc.) every 80 hours. 5. The hydraulic manifold is equipped with a diagnostic nipple to check the pressure coming from the base machine. Maintaining proper operating pressure will result in optimum cutting performance; also as a quick check to see if base machine is performing up to manufacturer’s recommendations. 6. Whenever hydraulic lines are disconnected, hoses must be capped and ports must be plugged to prevent contamination of the hydraulic system.

Relieve pressure before disconnecting hydraulic lines. Tighten all connections before applying pressure. Keep hands and body away from pin holes and nozzles, which can eject fluids under high pressure. Use a piece of cardboard to search for leaks. Escaping fluid under pressure can penetrate the skin and cause serious injury. If ANY fluid is injected into the skin, seek immediate medical attention.
NEVER adjust pressure relief valves to get higher operating pressures. The manufacturer’s recommended pressures give the safest performance with the longest life.

Page 22 Section 5 Maintenance

MSD 7R SHEARS

RECOMMENDED SPARE PARTS LIST
The following is a description of the parts LaBounty recommends to have on hand for these benefits. 1. Less downtime for lack of a part. 2. Original equipment manufacturer parts are inspected to LaBounty standards for proper fit and function. 3. Eliminate the possibility of a part being unavailable for immediate delivery. 4. Eliminate overnight air freight costs. 5. The accessibility of replacement parts assures the proper shear maintenance will be followed and therefore increase the efficiency of the shear.

BLADE ASSEMBLY
Cutting blades Guide blade All bolts and washers used to fasten blades Blade shims for lower shear blades (not supplied with new blades)
HYDRAULIC ASSEMBLY
All hydraulic hoses O-ring face seal adapters (ORS)
CYLINDER ASSEMBLY
Cylinder seal kit (ordered by cylinder part number and serial number)

NOTICE
Your warranty could be compromised by using parts other than original LaBounty parts.
NOTICE
Do not substitute parts unless you know they are the same in ALL characteristics.

ROTATION ASSEMBLY (IF EQUIPPED)
Crossover relief or motion control valve (one is applicable to each rotation assembly)
MANIFOLD ASSEMBLY (IF EQUIPPED)
O-ring seals Rotary seals

NOTICE
Refer to the shear parts catalog for specific part numbers. Be sure to reference the attachment serial number.

Maintenance Section 5 Page 23

MSD 7R SHEARS
SERVICE AND MAINTENANCE PROCEDURES
Visually inspect shear for damage Inspect all safety decals Inspect cab protection on excavator Confirm all excavator warning systems are operational Lubricate main pivot group (right hand side) Lubricate end of front cylinder pin Lubricate end of rear cylinder pin Lubricate mounting bracket connections Inspect pinheads and pinkeepers Inspect all bolts for looseness or damage Check guide blade gap; refer to manual is gap exceeds .030″ (.75mm) Check cutting blade gap; refer to manual is gap exceeds .030″ (.75mm) Inspect hoses for wear and potential failure Inspect cylinder for leaks
If rotator equipped: Grease turntable bearing Inspect rotation hoses (and hose connections) for wear, leaks, potential failure Check rotation assembly bolts Inspect all bolts connecting turntable bearing to upper head and shear; replace as needed Rotate or replace cutting blades and guide blades Inspect upper shear: build up and hardsurface piercing tip and wear areas Check split flanges and fitting for looseness; tighten if necessary Inspect and maintain the piercing tip area and wear areas Replace shear cylinder seals Replace swivel manifold seals (if equipped)

8 HOURS
· · · · · · · · · · ·
·
· · · · ·
·

80 HOURS
· · · · ·

2,000 HOURS
· ·

Page 24 Section 5 Maintenance

MSD 7R SHEARS
SECTION 6

SCHEDULED MAINTENANCE

MSD 7R SHEARS
UPPER SHEAR BUILD UP AND HARDSURFACING
All upper piercing tip and lower piercing area maintenance from Section 4 must be performed before any upper shear build-up and hardsurfacing is done. It is recommended that the upper shear maintenance be done at the end of the working day to allow adequate cooling time before putting the shear back into production.
1. For maximum shearing efficiency, the upper shear should be checked for wear. All edges should be kept square with the blades and piercing tip. To determine how much build-up is required on the front of the upper shear, place a straight edge along cutting blades and the newly maintained or replaced piercing tip. There will be a gap indicating how much build-up is required (see figure 6-1). 2. Clean all dirt and grease from area to be built-up. 3. Remove all existing hardsurfacing by grinding down to the base metal before beginning build-up and hardsurfacing procedures. 4. Preheat the area to be built-up and the surrounding area to 300-400°F (150-200°C). Test area frequently using a melt stick, as overheating can harm the shear (maximum 450°F / 230° C). Temperature/ melt sticks are available from LaBounty. 5. For build-up, apply AWS E7018 welding rod. Peen each pass vigorously to relieve weld stress and remove slag. Grind all edges to 90º. 6. To hardsurface the front of the upper shear, begin on the piercing tip to approximately half way up the front, apply single passes of Amalloy 814 rod or equivalent in a diamond pattern of approximately one inch (38mm) (see figure 6-2). Peen each pass.
NOTICE
Check temperature during this procedure. Maintain 300-400°F (150-200°C).

STRAIGHT EDGE
BUILD UP TEMPLATE FIGURE 6-1

Page 2 Section 6 Scheduled Maintenance

FIGURE 6-2

UPPER SHEAR BUILD UP AND HARDSURFACING CONTINUED
NOTICE
It is important to use an air operated slag peener on each pass of weld to relieve stress. Be sure to grind off in line with cutting edges.
7. To determine how much build-up is required along the blade seats, place a square or straight edge in a cross section to the blades. Repeat steps 3 and 4 to buildup this area (see figure 6-3). 8. To hardsurface the area, from behind the piercing tip to approximately the midpoint of the primary blade, apply 3 or 4 beads of Amalloy 814 in single passes running the length of the shear (figure 6-4) 9. Hardsurface should end approximately at the midpoint of the primary blade. Stagger the ends of the welds. DO NOT end welds within 1″ (25 mm) of bolt holes. DO NOT undercut ends of weld. Taper ends of welds into the base metal with grind marks going with the grain.

MSD 7R SHEARS
FIGURE 6-3

STAGGER WELDS

GRAIN FIGURE 6-4

Scheduled Maintenance Section 6 Page 3

MSD 7R SHEARS
LOWER SHEAR BUILD UP AND HARDSURFACING
All piercing tip and lower piercing area maintenance from Section 4 must be performed before any lower shear build-up and hardsurfacing is done.
It is absolutely necessary that the lower portion of the shear be maintained routinely using the following process.
1. Place the shear in a horizontal position and block it up about 18″ high, or preferred working height. Use straight edges or a the lower profile template supplied by LaBounty to determine how much buildup is required on the nose plate (figure 6-5). Use a square or straight edges, as on the upper shear, to determine build-up requirements on the top side of the lower shear. 2. Clean all dirt and grease from area to be built-up. 3. Remove any existing hardsurface material down to base metal by grinding. 4. Preheat the area to be built up and the surrounding area to 300- 400ºF (150-200ºC). Use melt stick to test area frequently, as overheating can harm the shear (maximum 450ºF / 230ºC). Temperature/melt sticks are available from LaBounty. 5. For required build-up, apply AWS 7018 welding rod in single passes running with the grain (see figure 6-6). Peen each pass. Grind all edges to 90º
NOTICE
Check temperature during this procedure. Maintain 300-400°F (150-200°C).

BUILD UP TEMPLATE FIGURE 6-5
GRAIN

GRAIN FIGURE 6-6

Page 4 Section 6 Scheduled Maintenance

LOWER SHEAR BUILD UP AND HARDSURFACING
CONTINUED
6. To hardsurface the build-up just completed, we recommend using Amalloy 814 or equivalent. Apply 3 or 4 single passes running the length of the shear and across on the nose plate (figure 6-7). No more than two layers of this rod should be used.
NOTICE
It is important to use an air operated slag peener on each pass of weld to relieve stress. Grind off in line with cutting edges.
7. Hardsurface should end approximately at the midpoint of the primary blade. Stagger the ends of the welds. DO NOT end welds within 1″ (25 mm) of bolt holes. DO NOT undercut ends of weld. Taper ends of welds into parent material with grind marks going with the grain. 8. To hardsurface the front and sides of the nose plate, apply single passes of Amalloy 814 rod or equivalent in a diamond pattern of approximately 1-½” (38 mm) (see figure 5-8). Peen each pass.

MSD 7R SHEARS
FIGURE 6-7

FIGURE 6-8 Scheduled Maintenance Section 6 Page 5

MSD 7R SHEARS
MAIN PIVOT GROUP
See figure 6-9. The main pivot group of your shear is a high-tolerance area requiring regular lubrication. The thrust washers in the main pivot are considered wear parts that will have to be replaced when worn.
1. Use a feeler gauge to check between the thrust washer and the upper shear. If .030″ or more gap is present the thrust washers may need to be replaced. 2. To replace the thrust washers, it will be necessary to place the upper shear in a horizontal position. 3. Loosen the set screw in the main pin locknut and remove the locknut. 4. Place a chain around each end of the upper shear to an overhead hoist or forklift. Put some type of protection between the chain and the blades on the upper. 5. Raise the upper evenly with the hoist, just enough to take the pressure off the pin. Remove pin and thrust washers. 6. The thrust washers will have to be replaced as a set, both right and left sides. The thrust washers will come stamped, LH (left-hand) and RH (right-hand) for the correct side. 7. Reinstall the pin, placing the appropriate new thrust washers in place as the pin is put in place. 8. Cycle the shear slowly, making sure there is no interference in the blades. Check the blade gap to determine if any adjustments are required.

THRUST WASHER

LOCK NUT

MAIN PIN
THRUST WASHER FIGURE 6-9 Page 6 Section 6 Scheduled Maintenance

SET SCREW

MSD 7R SHEARS
SECTION 7 ROTATOR MAINTENANCE

MSD 7R SHEARS
THE ROTATOR
The rotator is capable of 360º continuous rotation for easy, accurate cutting at all angles. The rotator requires special attention for maintenance and proper operating procedure. The rotator is to be used only as a positioning feature, not as a means of bending or breaking material. Use of the rotation feature for any other purpose may damage the rotation components and may compromise the shear warranty. The rotation circuit consists of a hydraulic motor driving a turntable bearing. Periodic maintenance requirements include maintaining proper bolt torques and lubrication; these maintenance items are detailed on the following pages.
FLOW CONTROL VALVE
PINION GREASE FITTING

FIGURE 7-1 CROSSOVER RELIEF VALVE

TURNTABLE BEARING GREASE

MOTOR Page 2 Section 7 Rotator Maintenance

MANIFOLD
TURNTABLE BEARING PINION GEAR FIGURE 7-2

MSD 7R SHEARS

BOLT TORQUING
The bolts connecting the turntable bearing are an important maintenance item. After the first eight hours of use, the bolts must be checked for looseness. Bolts can be retorqued only once and then must be replaced if they loosen due to fatigue caused by stretching the bolt during torquing. If the bolts continue to loosen, call the LaBounty Service Department for further instruction. These bolts should be inspected daily and replaced every 1500 hours or 12 months.
NOTICE
It may be necessary to rotate the attachment to access all the bolts connecting the attachment, bearing and rotating head.
BOLT TORQUE GUIDELINES
Proper bolt installation is critical to ensure the safe and efficient operation of the shear. Carefully follow the steps below to properly install bolts. 1. Always replace bolts and nuts with the same size and class of fastener. Replacement fasteners can be ordered from your dealer or from the LaBounty Parts Department to ensure the correct part is used. Unless otherwise specified, use class 10.9 metric hex head capscrews, class 10.9 metric flat head capscrews, and class 12.9 metric socket head capscrews. 2. Make sure bolts, nuts and bolt holes are free of dirt, oil, grease and other contaminants. 3. Use the Dry Bolt Torque Chart on this page to find the proper torque. When possible, torque the nut rather than the bolt head.

DRY BOLT TORQUE CHARTS
METRIC CLASS 10.9

SIZE
M10 x 1.5 M12 x 1.75 M14 x 2 M16 x 2 M20 x 2.5 M24 x 3 M30 x 3.5

FT-LBS
53 92 146 224 435 752 1511

N-M
72 125 198 305 590 1020 2050

METRIC CLASS 12.9
SIZE
M10 x 1.5 M12 x 1.75 M14 x 2 M16 x 2 M20 x 2.5 M24 x 3 M30 x 3.5

FT-LBS
64 110 177 269 523 899 1806

N-M
87 150 240 365 710 1220 2450

Always replace bolts and nuts with the same size and class of fasteners. Inferior fasteners can fail and cause injury or death and damage to the equipment.

Rotator Maintenance Section 7 Page 3

MSD 7R SHEARS

TURNTABLE BEARING LUBRICATION
LUBRICATION FREQUENCY
Rotating shears in storage should be lubricated at least every six months. Equipment operating frequently in extreme environments should be lubricated at least every eight hours. If the old grease is noted to be in good condition and free of contamination, the interval may be extended. Conversely, if the old grease is contaminated or deteriorated, the interval should be shortened.
LUBRICATION PROCEDURES
Bearings are equipped with one grease fitting located on the upper head for the turntable bearing and one fitting for the pinion gear. Look for the yellow grease stickers to locate the fittings. It is recommended to rotate bearing while greasing in order to uniformly distribute the grease and to most effectively flush out the old grease and contaminants. The bearing should be turned through two full revolutions while greasing through any one fitting. Apply 12 to 15 shots of grease.
TURNTABLE BEARING LUBRICANTS
For normal operating conditions, periodic lubrication with lithium Grade 2 extreme pressure grease is recommended. For operation below 32ºF, Grade 0 is recommended. The following table lists typical lubricants for turntable bearings.

APPROVED SOURCE
AMOCO CHEVRON
EXXON MOBIL SHELL SOHIO
SUN TEXACO UNION

TRADE NAME
RYCON DURA LITH
LIDOK MOBILUX ALVANIA BEARING GUARD PRESTIGE M U LT I FA K UNOBA

FOR OPERATION BELOW 32ºF/STORAGE
EPO EPO EPO EPO EPRO LTO 740EP EPO EPO

FOR OPERATION ABOVE 32º F
EP2 EP2 EP2 EP2 EP2
2 742EP
EP2 EP2

Page 4 Section 7 Rotator Maintenance

MSD 7R SHEARS

HYDRAULIC REQUIREMENTS
The rotating shear requires an auxiliary hydraulic circuit in order to operate the rotator. This circuit will need to be a medium pressure (1350-2000 PSI / 93-138 BAR), low flow (4-10 GPM / 15-37 LPM) hydraulic circuit. There are minimum and maximum pressure and flow requirements that may vary depending on the model of the shear. These requirements are listed in the Hydraulic Installation Requirements sheet in the Parts Catalog for the shear. The rotation motor on the shear is equipped with manifold mounted crossover relief and flow controls.
CROSSOVER RELIEF/FLOW CONTROL MANIFOLD

NOTICE
The crossover relief/flow control manifold does not provide a directional control of hydraulic fluid. An auxiliary hydraulic circuit is required to operate the rotator.

The Crossover Relief/ Flow Control Manifold is mounted directly to the hydraulic port of the rotation motor. The manifold controls rotation speed with two flow control valves and overload protection with one crossover relief valve to govern pressure at both motor ports. The valves have been adjusted at the factory to provide optimal performance of the rotation motor.

The flow control valves “meter-out” flow from the rotation motor–they are factory adjusted to a recommended rotation speed of 1 to 2 RPM. They may be adjusted to suit a speed preference; however keep in mind that the rotation feature is to be used only as a positioning device. Operating in excess of 4 RPM may damage the hydraulic and mechanical components of the attachment.

To adjust the flow controls: 1. See figure 7-3. Loosen the jamnut locking the adjustment screw. 2. To increase speed, turn the adjustment screw (Allen head) counterclockwise; check rotation speed at each 1/8 turn interval. If the attachment fails to increase in speed, it may be that all of the circuit flow is being used. Check the supply circuit flow with a flow meter to verify whether or not more flow is available. 3. To decrease speed, turn the adjustment screw (Allen head) clockwise; check rotation speed at each 1/8 turn interval. If the rotation speed does not decrease, replace the flow control valve. 4. Retighten the jamnut after the desired adjustment has been made.

FIGURE 7-3

JAMNUT

CROSSOVER RELIEF

ADJUSTMENT SCREW

FLOW CONTROLS

Rotator Maintenance Section 7 Page 5

MSD 7R SHEARS
CROSSOVER RELIEF/FLOW CONTROL MANIFOLD continued
The crossover relief valve provides overload protection for the rotator. This is not intended to replace the circuit relief valve on the base machine. This valve has been preset at the factory and requires no adjustment; it should not be tampered with. If a malfunction is suspected due to a lack of rotator performance, a pressure check should be performed. Diagnostic fittings are installed in the manifold to provide a means of checking pressure. Contact the LaBounty Service Department for the procedure for performing this check. Diagnostic fittings require a Parker PD series coupler on gauge.
CASE DRAIN
A case drain is required because of the back pressure that develops in the hydraulic motor case as a result of metering flow out of the motor. Depending on the model of the attachment, this port is located on the motor or bulkhead out to the rotation group shroud or port block. A 1/4″ hydraulic line should be connected to this port and routed back directly to the tank via a return line filter of its own. The maximum allowable back pressure in this line should not exceed 300 PSI.
NOTICE
The case drain line must be connected to prevent failure to the case or motor seals.
Page 6 Section 7 Rotator Maintenance

MSD 7R SHEARS

ROTATION CIRCUIT TROUBLESHOOTING GUIDE
The information contained in this guide provides for troubleshooting the LaBounty shear only. Any reference to the excavator will be made only to give some guidance as to where a problem may exist. Any specific maintenance and troubleshooting information will need to be provided by the original equipment manufacturer of the excavator or the authorized dealer.

SYMPTOM 1. Shear will not rotate

PROBABLE CAUSE a. Operating flow is too low
b. Crossover relief valve is bypassing oil c. Operating pressure is too low
d. System hydraulic fluid temperature excessively high e. Broken output shaft drive

REMEDY i. Flow control valve needs adjustment ii. Check supply flow i. Replace crossover relief valve i. Check crossover relief valve ii. Check supply pressure i. Check base machine hydraulic system
i. Replace or rebuild the hydraulic motor

f. Internal leakage in manifold block on motor g. Excessive wear on motor rotating components
h. Internal leakage in valve supplying oil i. Valve supplying hydraulic flow is faulty

i. Replace manifold block on motor ii. Check cartridge valve seals for damage
i. Replace or reseal the hydraulic motor ii. To check, remove the case drain line and measure the amount of flow out of the case
i. Check base machine hydraulic system
i. Check base machine hydraulic system

2. Rotation is excessively slow

a. Operating pressure is too low
b. Crossover relief valve bypassing oil c. Operating flow is too low

i. Replace crossover relief valve to increase the pressure
i. Replace crossover relief valve
i. Adjust flow control to increase flow to rotation group

Rotator Maintenance Section 7 Page 7

MSD 7R SHEARS

ROTATION CIRCUIT TROUBLESHOOTING GUIDE continued

SYMPTOM
2. Rotation is excessively slow, continued

PROBABLE CAUSE
d. Internal leakage in manifold block on motor

REMEDY
i. Replace manifold block on motor ii. Check cartridge valve seals for damage

e. Motor is worn out

i. Rebuild or replace the motor

f. Supply pressure too low

i. Check base machine hydraulic system

g. Supply flow too low

i. Check base machine hydraulic system

h. Internal leakage in valve

i. Check base machine hydraulic system

3. Rotation speed excessively high
4. Rotation erratic

i. Valve supplying hydraulic fluid is not working a. Operating flow too high
b. Supply flow too high a. Crossover relieve valve cartridge is faulty

i. Check base machine hydraulic system
i. Adjust flow control to decrease flow to rotation group
i. Check base machine hydraulic system i. Replace crossover relief valve

b. Flow control valve cartridge is faulty

i. Replace flow control valve

c. Valve spool sticking in valve supplying i. Check base machine hydraulic system oil

d. Faulty electrical signal at control valve i. Replace electric solenoid (if electrically controlled)

e. Faulty circuit relief valve

i. Check base machine hydraulic system

5. Rotation drifts

f. Varying pilot pressure to control valve a. Control valve ports are open to tank with spool in neutral position
b. Excessive leakage in control valve spool
c. Crossover relief valve is leaking excessively
d. Crossover relief valve set too low

i. Check base machine hydraulic system i. Check excavator hydraulic system. i. Check excavator hydraulic system i. Replace crossover relief valve i. Replace crossover relief valve

Page 8 Section 7 Rotator Maintenance

LIMITED WARRANTY

New Attachment LaBounty warrants its manufactured products against deficiency in material or workmanship for a period of 12 months from the date of first use, rental or sale, or 1500 hours of operation, whichever occurs first.
LIMITATIONS
· Remanufactured or used product or service repair are not warranted under this Limited Warranty. · Product that is damaged by alteration, improper maintenance, unauthorized service, abuse,
misuse, or contamination by the base machine is not warranted. · This Limited Warranty is the exclusive warranty. LaBounty makes no representations, expressed
or implied, of merchantability or fitness for a particular purpose. · Agents of LaBounty have no authority to make representations beyond those contained herein.
EXCLUSIVE REMEDY
The exclusive remedy for a product LaBounty determines deficient in material or workmanship is repair or replacement at LaBounty’s option. The following procedure governs a repair or replacement warranty claim:
1. All warranty claims require a claim number provided by LaBounty Service Department. 2. A factory-issued Return Material Authorization tag (RMA) must accompany returned product. 3. Returned product found deficient by LaBounty will be replaced or repaired without charge FOB
Distributor/Customer or will be credited to account balance. 4. Authorized repair can occur at the LaBounty factory or authorized LaBounty Dealer. Labor for
warranty repair will be paid under a formula determined by LaBounty.
LaBounty is not liable for incidental or consequential costs or losses incurred by the product, purchaser or user.
LIMITED WARRANTY
To validate the Limited Warranty, a completed warranty certificate and delivery inspection report must be returned to LaBounty. Prohibited operation and/or unauthorized adjustment or assembly will void this Limited Warranty. See the Operation, Maintenance and Safety Manual.
CONTACT INFORMATION
Contact your LaBounty Dealer or LaBounty regarding warranty questions. All requests for information, service or spare parts should include model and serial numbers. For the nearest LaBounty dealer contact:
LaBounty 1538 Highway 2 Two Harbors, MN 55616-8015 USA Phone: 218-834-2123 or 800-522-5059 FAX: 218-834-3879

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