HYTORC STEALTH-2 Stealth Hydraulic Torque Wrench Instruction Manual

**HYTORC STEALTH-2 Stealth Hydraulic Torque Wrench Instruction Manual

**

This manual applies to all tool part numbers in the Stealth Product Family. The complete part number matrix which applies to this manual can be found in Appendix A and B respectively. It is recommended the manual is kept up-to-date by checking the edition and date code at the bottom of this page by utilizing the HYTORC website and downloading a copy of the most recent edition as needed.

12100-1:2011 EN 982:2009EN ISO 12100-2:2011 EN 61310-2:2008EN ISO 14121-1:2007 EN 61310-3:2008EN ISO 11148-6:2012 ISO 3744:2011For a complete EC declaration of conformity or if you require any further assistance please contact your local HYTORC representative or 1-800-FOR-HYTORC (1-800-367-4986) or on the web at www.hytorc.com.

HYTORC Corporate Headquarters
333 Route 17 North
Mahwah, NY 07430, USA

Notice : The information contained in this document is subject to change without notice. HYTORC
makes no warranty of any kind with regard to this material, including but not limited to, the implied
warranties of merchant ability and fitness for a particular purpose. HYTORC shall not be liable for
errors contained herein or for incidental or consequential damages in connection with the furnishing,
performance, or use of this material. It is further recomended that the end- user or repair technician
insure they have obtained and are familiar with the latest revision of the manual for the equipment
outlined in this document.

Restricted Rights Legend: Use and duplication of the information contained within this manual is
limited to the purchaser, end user, or licensed Hytorc representative. It is recommended that proper
training for the equipment outlined in this manual be conducted by a HYTORC authorized training
representative for any person who is operating or repairing the equipment outlined in this document.
Modification, or disclosure by any other agency or representative is strictly forbidden.

Product Modifications: Hytorc Corporation DOES NOT ALLOW any of the products listed in this manual to be modified by any end user without exception. Should an application require a modification to the tool, or any of the standard accessories please consult with your local HYTORC representative and they will be able to obtain the assistance for any modification that may be required.

Copyright © May 2024 by HYTORC Division UNEX Corporation. All rights reserved. Reproduction,
adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

THANK YOU FOR PURCHASING THIS REVOLUTIONARY TORQUE/TENSION SYSTEM
IMPORTANT READ CAREFULLY BEFORE USE AND KEEP FOR FUTURE REFERENCE

FREE SAFETY TRAINING : To ensure safe operation, please request the FREE Safety Training before
use by calling your local HYTORC Representative 1-800-367-4986 or www.hytorc.com. We recommend safety training every 6 months. These trainings are free of charge. Just call us.
PLEASE READ THE SAFETY INSTRUCTIONS HEREIN.

SYSTEM INSPECTION: Before any use, please inspect the entire tool system, including hoses, gauge,
sockets and backup wrenches. Do not use kinked hoses, oversized or heavily worn sockets, backup wrenches, damaged tools, pumps, connectors, or gauges. Connect system to operate from a safe distance. Ensure fasteners are in good shape. Verify the tool is functioning with drive or hex ratchet turning in one direction only and verify the gauge from a safe distance that needle is on zero at no pressure and at 10,000 psi at high pressure. Keep high pressure on and check system visually for leaks. Realize that hydraulic tools are very strong and work at high pressure.

HANDS-FREE BOLTING : The tool you have purchased permits hands-free operation from a safe
distance in conjunction with a HYTORC Washer™. We recommend the use of a HYTORC Washer™ to
avoid finger-pinching, over-crowded sites and to ensure hands-free bolting at least on all vertical and
inverted applications, while eliminating improvisation and the use of reaction members or backup
wrenches. Otherwise, set up the tool in a way that it does not have to be held by hand.
For more information, please contact us at 1-800-367-4986 or www.hytorc.com.

HANDS-FREE WASHER APPLICATION : Make sure the drive and the tool are locked on securely.

FREE ANNUAL TOOL INSPECTION : With the purchase of HYTORC, you have the right to a FREE
annual tool inspection, which includes free seals, springs, connectors, and free lubrication. In case
of damaged or worn parts, the first inspection within 12 months of purchase is free of charge.
Thereafter, you will be informed of any cost prior to replacement. Any part replaced and charged by
us will be sent to you for your inspection upon request when P.O. is issued.

FREE LOANER TOOLS: In case of tool failure during the warranty or rental period, please contact
your local HYTORC Agent for a free loaner tool – 24/7.

HOSE REPLACEMENT: We recommend replacing hydraulic hoses and oil every (3) three months.

PLEASE WEAR REQUIRED SAFETY ATTIRE and use common sense during operation.
HELP: If you require any further assistance, please call your local HYTORC Representative or
1-800-FOR-HYTORC (1-800-367-4986), on the web at www.hytorc.com – 24/7! It’s live!

PLEASE REVIEW THESE SAFETY TIPS BEFORE EVERY TOOL USE

THANK YOU FOR BUYING HYTORC !

HYTORC is used more often, by more industries on more applications than all others combined.
If you maintain your new tool properly, it will last for years to come.
This manual is designed to provide you with the basic knowledge required to operate and maintain your HYTORC tool. Please read this manual carefully and follow the instructions provided. If you have any questions regarding your HYTORC tool, please call us directly at 201-512-9500 or fax 201-512-0530.
Finally, your purchase of this HYTORC tool entitles you to the following FREE services:

• • Free on-site training in the application and operation of your HYTORC equipment
• Free semi-annual training
• Free annual tool inspection
• Free loaner tools in case of failure
• Free engineering assistance by calling 1 800 FOR-HYTORC, or our continental office

Your local HYTORC office was informed of the delivery of this equipment. Should you require immediate training, please feel free to call us directly to arrange an appointment with you at your convenience.

For additional information please visit our website at www.hytorc.com Again, thank you and welcome to HYTORC!

Worldwide Warranty
HYTORC equipment is engineered to the latest technological standards and is backed by our exclusive
12-word, 12-month warranty.
“YOU BREAK IT UNDER NORMAL USE, WE FIX IT FREE OF CHARGE!”
If a HYTORC Tool cannot be repaired on-site, FREE loaner HYTORC equipment will be made available  to youupon request.

UNEX CORPORATION OR ITS DEALERS SHALL NOT BE LIABLE FOR LOSS OF PRODUCT OR OTHER INCIDENTAL OR CONSEQUENTIAL COSTS INCURRED BY THE BUYER OR THE USER.

HYTORC Offices Worldwide

Europe
Japan
Australia
United Kingdom
Brazil
All Others| HYTORC EuropeHYTORC JapanHYTORC AustraliaHYTORC UKHYTORC South AmericaHYTORC USA| Tel. 33-1-4288-6745Tel. 81-3-3314-3315Tel. 61-8-8293-8411Tel. 44-16-7036-3800Tel. 55-21-2223-2944Tel. 201-512-9500/800-FOR-HYTORC
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IMPORTANT SAFETY INSTRUCTIONS

WARNING : Your HYTORC TORQUE/TENSION MACHINE is a power tool, and as with any power tool, certain safety precautions should be observed to avoid accidents or personal injury. The following tips will assist you.

• READ ALL INSTRUCTIONS

• KEEP WORK AREA CLEAN AND WELL LIT

• CONSIDER WORK AREA ENVIRONMENT
  Electrical Pumps should never be used in any atmosphere which can be considered potentially volatile.
  If there is any doubt, use an air pump. Note: metal to metal contact can cause sparks, precautions should be taken.

• AVOID PREMATURE TOOL STARTING
  The Pump Remote Control is for the TOOL OPERATOR only. Avoid separate pump and tool operator.

• STAY CLEAR DURING OPERATION
  In most cases, the tool will allow “hands free” operation. If the tool must be held or steadied during
  operation, use alternative means of securing the tool to the application.

• GUARD AGAINST ELECTRIC SHOCK
  Ensure the pump is properly grounded and the proper voltage is being used.

• STORE IDLE TOOLS
  When not in use, tools and accessories should be properly stored to avoid deterioration.

• USE THE RIGHT TOOL
  Don’t force small tools or attachments to do the job of a larger tool. Don’t use a tool for purposes not intended. HYTORC can develop custom accessories for your job to ensure safe and simple operation. Contact your local HYTORC representative for more information on our custom engineering abilities.

• PROPER SAFETY ATTIRE
  When handling/operating hydraulic equipment, use work gloves, hard hats, safety shoes, hearing
  protection, and other applicable clothing.

• USE SAFETY GLASSES

• MOVING EQUIPMENT
  Do not use hydraulic hoses, uni-swivels, pump power or remote cords as means of moving the equipment.

• HOSES
  Do not kink hoses. Inspect and replace if damaged

• SHROUDS AND COVER PLATES
  All tools are equipped with shrouds and/or cover plates to cover up moving internal parts. If shrouds are missing or damaged, please contact your local HYTORC representative for repair. A free loaner tool will be made available to you during the time of repair.

• MAINTAIN TOOLS WITH CARE
  For top performance, inspect tool powerpack, hoses, connectors, electric lines, and accessories for visual damage frequently. Always follow instructions for proper tool and pump maintenance. Refer to the Operations Maintenance Section for further clarification.

• STAY ALERT
  Watch what you are doing. Use common sense. Do not use power equipment under the influence of any mood altering substances.

• PRIOR TO OPERATION
  Ensure that all hydraulic connections are securely connected. Verify that the hydraulic hoses are not kinked. Ensure the square drive and its retainer are fully and securely engaged.

• PRIOR TO USE
  Cycle tool to ensure proper function. Locate a solid, secure reaction point. Be sure the reaction arm retaining clamp is fully engaged. Be sure the hydraulic hoses are free and clear of the reaction point. Pressurize the system momentarily; if the tool tends to “ride up” or to “creep”, stop and re- adjust the reaction arm to a more solid and secure position.
  NOTE: For additional safety, a HYTORC Washer can be used in place of the reaction arm; call your HYTORC representative for more information.

• ALWAYS USE QUALITY ACCESSORIES
  Always use top quality impact sockets in good condition which are the correct size and fully engage the nut. Hidden flaws, however, remain a possibility which could cause breakage, so stay clear of sockets during operation.

• DO NOT USE FORCE
  Do not hammer on the socket or the tool to enhance performance. If the nut will not turn with the wrench you are using, use a larger size HYTORC tool.

• REACTION ARM
  Proper reaction is required. Adjust reaction arm or plate accordingly. Avoid excessive play. In case of questions, consult with your local HYTORC office.

INSTRUCTIONS BEFORE USE

READ CAREFULLY : Most malfunctions in new equipment are the result of improper
operation and/or set-up assembly.
PREPARATION : Remove HYTORC Torque Machine from shipping container.
INSPECTION : Visually inspect all components for shipping damage. If any damage is
found, notify carrier immediately.
2-1
Working Pressure
The tool’s maximum working pressure is 10,000 PSI (700kg/cm2).
Make sure that all hydraulic equipment used with this tool is rated for 10,000 PSI Operating Pressure.
2-2
Hydraulic Connections
With older style pumps (SST-IO, SST-20), the retract side of the system may remain pressurized after the pump has been switched “off’. This trapped pressure makes it impossible to loosen the retract-side fittings by hand.
To release the pressure, find the 5/16” manual override holes in the end ofthe black solenoids on the pump. With a welding rod, allen key or similar device, push in on the ends of both solenoids, each in turn, and the residual pres sure will be released. All fittings will then be hand tight again.
Newer style pumps (HYTORC 115, HYTORC 230, HYTORC AIR) are equipped with an auto-pressure relief.
Never disconnect or connect any hydraulic hoses or fittings without first unloading the wrench and the pump. If the system includes a gauge, double check the gauge to ensure pressure has been released.
When making connections with quick disconnect couplings, make sure the couplings are fully engaged. Threaded connections such as fittings, gauges, etc., must be clean, securely tightened, and leak free. If tool operates backwards, couplings are reversed. HYTORC hoses may only be joined together in odd numbers ONLY. If it is necessary to use 2,4,6 hoses – make an adapter from spare high pressure couplings and nipples.
CAUTION : Loose or improper threaded fittings can be potentially dangerous if pressurized, yet, severe over tightening can cause premature thread failure. Fittings need only to be securely tightened & leak free. Never grab, touch or in any way come in contact witb a hydraulic pressure leak. Escaping oil could penetrate the skin and cause injury.
2-3
Electrical Connections
Ensure proper power availability to prevent motor failure or dangerous electrical overloading. Compare the motor nameplate for required amperage.
Do not use electric pump if the 3-prong electrical plug is not whole.
Minimize the length of extension cords and be sure they are of adequate wire size, with ground connections.
Extension cord should be #10 AWG gauge.
WARNING: Electric motors may spark. Do not operate in an explosive atmosphere or in the
presence of conductive liquids. Use an air motor pump Instead.
2-4
Air Connections
Ensure that you have sufficient air flow (in cfm) to operate your pneumatic pump. If in doubt, compare the pump manufacturer’s recommended air flow rating prior to pressurizing pump. Improper air flow may damage the pump motor. For best results use airhoses larger than 3/4” I.D. diameter.
Use of a filter regulator lubricator (FRL) is highly recommended. (Pictured below.)

1. Adjust flow to one drop per 60 – 90 seconds
   

2. Fill half way with grade 46 hydraulic oil supplied

OPERATION

1. 3-1
   General
   All HYTORC Torque Machines are supplied completely assembled and ready for use. A HYTORC Hydraulic
   Power Pack (for use with your HYTORC machine) is recommended to provide the speed, pressure, and portability that makes your HYTORC System efficient and accurate.
   The System accuracy of your HYTORC tool is +/- 3%, based upon manufacturer’s specifications. This accuracy may be certified through calibration by HYTORC or any other qualified calibration facility whose program is trace able to the National Institute of Standards and Technology (N.I.S.T.).
   Using a calibrated gauge enhances the accuracy of your HYTORC System.
   3-2
   Connecting the System
   The wrench head and power pack are connected by a 10,000 PSI operating pressure (40,000 PSI burst) twinline hose assembly. Each end of the hose will have one male and one female connector to assure proper interconnection between pump and wrenchheads.
   IMPORTANT : To avoid tool malfunction. do not reverse connectors.
   Connect the twinline hose to the uniswivel as shown below:

Insure the connectors are fully engaged and screwed snugly and completely together.
3-3
Drive Direction Change
The Stealth tools use interchangeable ratcheting links. Links are attached using a link pin. While the Stealth can be used without a link pin it is always our recommendation to use a link pin whenever possible. For tightening, simply engage the nut with the right side of the link facing down. For loosening, the left side of the link faces down.
Ratcheting link can be detached from the Stealth power head by pulling the power head out while pressing the button shown below.

The above diagram illustrates the direction the square drive should face for loosening and tightening of a standard right hand fastener.
3-4
Setting Torque
Once the system is fully connected and the proper power supply is available, it is time to adjust the pump pressure to the level needed on your job. When tightening, use the manufacturer’s specifications to determine the torque value which you will ultimately require.
Torque sequences may vary from plant to plant and even within individual plants, depending on the gasket material, etc. Always abide by local procedures. The included torque chart is a guideline for comparison only and gives typical torque values specified for the most commonly encountered fasteners. Next, find the pressure-torque conversion table applicable to the tool which you intend to use.

An example of finding the desired torque required is as follows:

1. Assume you are going to use a HYTORC STEALTH tool to torque a 1-114” bolt to 1,265 ft lbs.
2. Start by referring to the proper torque chart shipped with your tool. Read straight down to the number closest to 1,265 ft lbs, which in this case is 1,280 – about 1.5% over the targeted torque value.
3. Now, using 1,280, read back to the left on that same line and read the pump pressure, under the PSI column, 4,000 PSI.
4. To be technically correct, you should diminish that 4,000 PSI by 1.5% (to 3940), but 1,280 is well within the tool’s +/- 3% accuracy range, so proceed to set 4,000 PSI on your pump’s regulator valve.

3-5
Setting the Pressure on the Pump
To set the pressure on the pump, follow this procedure:

1. Loosen the knurled locking ring below the “T” handle on the pump’s external pressure regulator. Then turn the “T” handle (shown below) counterclockwise (CCW) until it turns freely and easily.
2. Turn the pump “on”. Using the pump’s remote control pendant, push down the advance switch (or button on air pumps) and hold it.
3. While holding the pump in the advance mode, slowly turn the “T” handle clockwise and observe the pump pressure gauge rise.
4. When your gauge reaches 4,000 PSI, stop turning the “T” handle and let the gauge settle out.
5. If the pressure continues to rise (above 4,000), release the advance button and back off your pressure slighitly – by turning CCW on the “T” handle.
6. Then re-depress the advance switch on your remote and slowly bring pressure up to 4,000 again.
7. When the pressure is correct, turn the pump “off’ and tighten the knurled lock nut provided under the “T” handle. This sets pump pressure, which determines torque tool output.
8. Once your target pressure is set and locked, cycle the pump once more to ensure that your pressure setting did not change as you turned down the knurled knob
   NOTE: Always adjust the regulator pressure up – never down.

3-6
Applying the Torque Machine – the Tightening Process

1. Once the target pressure is set (refer to 3-6) Cycle the tool several times to full pressure to assure proper operation.
2. Place the right side of the ratchet link directly over the nut. Ensuring the hex is fully engaged and the reaction pad portion of the link abuts solidly against an adjacent nut or other stationary object. (see 3-3 for proper tool plament)
3. Ensure hose connections are clear of any obstacles.
4. After all the above are confirmed, apply momentary pressure to the SYSTEM to assure the reaction point is stable.

3-7
Operating the Torque Machine

1. By pushing down on the remote control button in the advance position, the rear of the tool will be pushed back until the reaction arm makes contact with its reaction point.
2. Continue to hold down the button as the socket turns until you hear an audible “click” which will signify the hydraulic cylinder inside the tool is fully extended and will not turn the socket further.
3. Continuing to hold down the remote control button will result in a rapid buildup of pressure to the point of where the gauge reads what was preset prior to applying the wrench.

IMPORTANT: The reading of full preset pressure after the cylinder is extended DOES NOT
INDICATE that this pressure (torque) is applied to the bolt. It only indicates that the cylinder is fully
extended and cannot turn the socket further until the tool automatically resets itself.
Releasing the remote control button will retract the cylinder. The tool will automatically reset itself and the operator will hear an audible “click” indicating he can again push the remote control button and the socket will turn. Each time the cylinder is extended and retracted, it is called a cycle. Successive cycles are made until the tool “stalls” at the pre-set Torque/PSI with an accuracy of ±3%.
IMPORTANT : ALWAYS ATTEMPT ONE FINAL CYCLE TO INSURE THE “STALL” POINT HAS BEEN
REACHED.

Releasing “LOCKED-ON” tools.
Should the tool “LOCK-ON” after the final cycle, slide the disngage button with the pump off or in retract position.
Turn the pump back on and while maintaining the pressure, cycle the STEALTH tool in the pump’s manual mode.
Once you are able to press down the button without resistance, continue holding the button down and release the advance pressure on the pump. Shut off the pump, and remove the tool from the nut.

STEALTH RELEASE PROCEDURE

1. Push remote to full pressure for final stroke
2. Disengage the reaction pawl by holding the button the direction of arrow
3. Release the rocker sw itch
4. Shut pump off
5. Remove tool

3-8
Loosening Procedures
First, set the pump to 10,000 PSI. Change the drive direction to the loosening mode, assurring the reaction arm abuts squarely off a solid reaction point. Press and hold the remote control button down. Pressure will decrease as the socket begins to turn. As the cylinder extends fully, you will hear an audible “click”. Release the remote control button, and the cylinder automati cally retracts, at which time you again hear the audible “click”.

Repeat this process until the fastener can be removed by hand.
NOTE: IF THE BOLT DOES NOT LOOSEN WITH THE ABOVE PROCEDURE. IT IS AN INDICATION THAT YOU REQUIRE THE NEXT LARGER SIZE TOOL TO LOOSEN THE BOLT.
Use the safety handle to set and remove tools

HYTORC POWER PACKS

4-1
General Information
All HYTORC Power Packs operate in a pressure range from 500 to 10,000 PSI, and are fully adjustable. They have been engineered and designed for portability and high flow for increased speed. Before using your HYTORC power pack, check the following points:

• Is the reservoir filled with oil?
• Where is the closest electrical outlet at the job site?
• Is there enough air pressure (100 PSI) and flow at the job site? (Air units only)
• Is the gauge mounted and rated for 10,000 PSI?
• Is the oil filler plug securely in place?

4-2
Working Pressure
The Pump’s maximum working pressure is 10,000 PSI(700 kg/cm2). Make sure all hydraulic equipment and accessories are rated for 10,000 PSI operating pressure.
4-3
Hydraulic Connections
Never disconnect or connect hydraulic hoses or fittings without first unloading the wrench. Unplug the electrical cord of the pump, and open all hydraulic controls several times to ensure that the system has been depressurized. If the system includes a gauge, double check the gauge to ensure pressure has been released.
When making a connection with quick disconnect couplings, make sure the couplings are fully engaged.
Threaded connections such as fittings, gauges etc. must be clean, securely tightened, and leak free.
CAUTION : Loose or improperly threaded couplers can be potentially dangerous if pressurized.
However, severe over tightening can cause premature thread failure. Fittings need to be only tightened secure and leak free. Never grab, touch, or in any way come in contact with a hydraulic pressure leak. Escaping oil could penetrate the skin and cause injury.
Do not subject the hose to potential hazards such as sharp surfaces, extreme heat or heavy objects. Do not allow the hose to kink and twist. Inspect the hose for wear before it is used.
4-4
Electrical Power

1. CHECK FOR PROPER ELECTRICAL SUPPLY BEFORE CONNECTING.

2. THIS MOTOR MAY SPARK. DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE OR IN PRESENCE OF CONDUCTIVE LIQUIDS.
   a. Do not use a power or extension cord that is damaged or has exposed wiring.
   b. All single phase motors come equipped with a three prong grounding type plug to fit the proper grounded type electrical outlet. Do not use a two prong ungrounded extension cord as the pump’s motor must be grounded.

3. COMPARE MOTOR NAMEPLATE AGAINST POWER AVAILABILITY TO PREVENT MOTOR BURN OUT OR DANGEROUS ELECTRICAL OVERLOADING.

4-5
Prior to Use
Check the hydrauilc oil level to prevent possible pump burnout. Open the filler plug located on the reservoir plate.
Look at oil fill level on the oil sight gauge. The oil level should be about 2” from the top of the reservoir plate with the motor off. Add HYTORC oil as necessary. Do not mix different grades of oil.
Make sure all desired gauge, valve, hose, and quick coupler connections are tight and secure before operating.
The use of a pressure gauge is required for normal pump operation. Mounted on the manifold, the gauge permits the operator to monitor the load on the wrench. 114% calibrated gauges are available for most applications.
4-6
Operation
Before starting your Electric Pump (HYTORC 115/230), connect your hydraulic hoses to both the pump and torque wrench.
Place the toggle switch in the ON position and the rocker switch on the hand control pendant in the OFF position.
To start the pump, depress and release the yellow safety button.
NOTE : The safety button is an added feature designed to prevent premature starting and should
only be depressed by the tool operator.
Push the rocker switch to advance and release. This will start your pump and place it in the retract position.
NOTE: Read the section labeled HYTORC OPERATIONS and SETTING TORQUE prior to installing
the torque wrench onto the application.

Your HYTORC 115/230 hydraulic pump has been designed with an auto shut off system. The pump will shut off after about 30 seconds of non-cycling. This will prevent overheating and unnecessary wear which will prolong the life of your pump. To restart the pump, the yellow safety button must again be depressed before use.
4-7
LED Lights for System Monitoring
The HYSTREAM 115V Pump is now equipped with (3) three-colored LEDs integrated into the electric control box for system monitoring.
Upper LED: Low voltage

• green when voltage above 95V = o.k.
• yellow when voltage between 95V and 80V
• red when voltage below 80V
• motor switches off when below 77V for more than 5 seconds

Middle LED : High voltage
While not running

• generally green when voltage below 138V
• when above 138V all LEDs will flash red

While running

• green when voltage below 128V
• all three LEDs blink red when voltage above or equal to 128V, motor switches off after 5 seconds

Lower LED : Temperature

Oil temperature

• green when temperature between +32°F (0°C) and +194°F (90°C) = o.k.
• yellow when temperature below +32°F (0°C) (solenoid valve locked) or above +194°F (90°C)
• red when oil temperature above +212°F (100°C) (motor switches off)

Motor temperature

• green when coil temperature below +356°F (180°C) = o.k.
• red when coil temperature above +356°F (180°C) (motor switches off

4-8
Important Instructions for ATEX Certified Pneumatic Pumps for Explosion Protection
The device can be used in hazardous areas as follows:
Explosion-proof hydraulic torque controlled bolting system
HYTORC Division of UNEX Corp.
333 Route 17 North
Mahwah, New Jersey 07430 U.S.A.
EPS 13 ATEX 2 561 X
EX II 2 G EX c IIB T4
CE 2903
Definition: HYTORC hydraulic bolting system, suitable for hazardous areas:
The bolting system, which can be used in hazardous areas, consists of at least three components:

1. Modified pneumatic HYTORC Pump HY-AIR
2. Modified twin hose, nominal diameter 6 mm
3. Modified HYTORC Low Clearance Wrench STEALTH and / or HYTORC Square Drive Wrench  AVANTIand / or ICE.

ATTENTION: Only modified HYTORC hydraulic torque wrenches STEALTH, AVANTI and ICE, modified twin hoses (only nominal diameter 6 mm) as well as the modified pneumatic HYTORC Pump JetAir-12 shall be used in hazardous areas

1. Modified component : HYTORC HY-AIR Pneumatic pump must be equipped as follows:
   a) Solid metal spring on each male and female coupling (between coupler and fitting)

2. Component : The HYTORC hydraulic twin hose, with a nominal size of 6 mm (color mint-yellow).
   ATTENTION: HYTORC hydraulic twin hoses with a diameter smaller than 6mm are not suited for explosion protection.
   The twin hose nominal size 6 mm must be equipped as follows:
   (a) Solid metal spring on each male and female coupling (between coupler and fitting). Each twin hose has two pairs of couplers, and therefore four couplers

3. Component : The HYTORC hydraulic torque wrench. The torque wrench must be equipped as follows:
   a) Solid metal spring on each male and female coupling (between coupler and fitting).

b) The joints of the swivel on the hydraulic wrench must not be ANODIZED! Only the polished swivel can be used!
Important note:
Other anodized HYTORC swivels, for example MXT swivels, are NOT suited for explosion protection!

Example : Pink anodized STEALTH swivel            Example : Blue anodized MXT swivel
Not suited for explosion protection!                Not suited for explosion protection!
The HYTORC HY-AIR hydraulic pump is equipped as follows:
b) Equipped with metal feet.

c) Equipped with a plastic remote control FBP-A5 art.-No.: 31044774 or FBP-A10 art.-No.: 33150200. Only this plastic remote control has passed the electric charge and capacity test.

Qualified Personnel :
The bolting system may be operated only by trained and experienced personnel for explosion protection.
Conductivity:
Conductivity of the entire system is ensured by several solid metal springs,

• HYTORC Pneumatic Pump JetAIR 12.A connected securely to the hydraulic hose
• HYTORC Hydraulic Twin Hose (diameter 6 mm) connected securely to the tool

Explosion protection is guaranteed if:
The explosion protection is only guaranteed when all springs (pneumatic pump, twin hose and tool) are attached tightly. When in doubt about the conductivity of the connection, attach a standard multi-meter between the tool and the end of the ground wire and take a resistivity measurement.

Ground wire:
Avoid electric-potential differences between plant and tool.Before initial operation in explosive areas, a ground wire has to be attached between the HYTORC Pneumatic Pump (No Electric Pump to be used!) and the plant.
The ground wire must be supplied by the operating company.
Final recommendation for explosion protection:
To ensure an effective explosion protection, it is imperative to comply with the instructions mentioned above. It is recommended to have the explosion proof system inspected by a HYTORC Specialist on a regular basis.
This system should include anti-sparking sockets and a grounded flange.

PREVENTATIVE MAINTENANCE

5-1
PREVENTATIVE Maintenance – Torque Machines
Tool failure, although rare, does occur. Such failure is most often in the hydraulic couplers or hoses. These items are repairable or replaceable immediately, since they are available universally. Failure of structural members of the tool are quite rare, but replacement parts are available from stock. All repairs to HYTORC tools may be made by reasonably experienced individuals according to these instructions.

• Lubrication
  All moving parts should periodically be coated with a good quality NLGI #2 molybdenum disulfide grease. Under harsh environmental conditions, cleaning and lubricating should be performed more frequently.

• Hydraulic Hoses
  Hoses should be checked for cracks and leaks before, and after each job. Hydraulic fittings can become plugged with dirt and should be flushed periodically.

• Quick-Connects
  Fittings should be kept clean and not allowed to be dragged along the ground or floor, as even small particles of dirt can cause the internal valves to malfunction.

• Springs
  Springs are used for the drive pawl assembly and for the accuracy assurance pawl. These springs can be replaced if necessary.

• Cylinder Seals
  If the cylinder requires disassembly, it is recommended that the cylinder seals be replaced at the same time.
  Seal kits are readily available.

• Structural Members
  All structural parts on the tool should be inspected once a year to determine if there are any cracks, chips, or deformities. If so, immediate replacement is required.

5-2
PREVENTATIVE Maintenance – Hydraulic Power Packs
HYTORC Hydraulic Power Packs are precision-built units and, as such, require a certain amount of care and maintenance.

• Hydraulic Oil
  Oil should be completely changed after every 40 hours of operation, or at least twice a year. Always make sure the reservoir is filled with fluid. If additional oil is required, use only high-grade hydraulic oil.
  Consult your local waste ordinace requirements for proper disposal of hydraulic oil. Most environmental regulations prohibit the disposal of the hydraulic oil through ordinary means. Precaution should be taken and hydraulic oil should be disposed of as hazardous when ever the local requirements are not clear.

• Quick-Disconnects
  Fittings should be checked periodically for leaks. Dirt or foreign materiais should be kept away from fittings.
  Clean before use.

• Hydraulic Gauge
  Some gauges are liquid filled. Should this liquid level drop, it indicates external leakage, and replacement is necessary. Should the gauge fill with hydraulic oil, it indicates internal failure and it should be discarded.

• Filter on Pump
  The filter should be replaced twice a year in normal use and more often if the pump is used daily or in a dirty, harsh environment.

• Remote Control
  (Air Unit) The air line to the remote control unit should be checked for obstructions or kinks in the line periodically.
  If there is a bend or break in the line, it must be replaced. The spring- loaded buttons on the remote handle should be checked in the event of operating difficulties. (Electric Unit) The rocker switch should be checked periodically if any indication of problems exist.

• Air Valve
  This valve should be checked twice a year.

• Brushes and Brush Holders
  (Electric Unit) Check and replace, if worn.

• Armature
  (Electric Unit) Check yearly.

TROUBLESHOOTING

TEST #1
Attach hoses to pump and tool in the normal manner. Press the advance button and hold it down. If the pump pressure builds and the hoses “flex” but the tool still refuses to cycle, the problem is most likely a loose or defective coupling connection. To find out where the bad coupling is, remove the tool from the hoses and marry the loose ends together and cycle the pump. If the gauge pressure reads no more than 500 PSI, then the bad fitting is on the tool. A significantly greater pressure indicates that the problem is in either the pump or a hose fitting.
TEST #2
Place a welding rod or thin screwdriver in the opening of either side of the solenoid. Press and then release the advance button. Repeat this process on the opposite side of the solenoid. You should feel the solenoids moving back and forth. If either side is “dead” the solenoid is bad and needs to be replaced. Note: if in an urgent situation, the tool may be cycled manually by pushing the solenoids back and forth through these access holes.
TEST #3
Remove tool from hoses. Cycle pump. If pump fails to build pressure, the problem is with the pump. If it does build pressure, the problem is with hydraulic blow-by in the tool.
TEST #4
Connect tool, pump, and hoses together normally and turn pump “on”. As oil leaks from the small port under the uni-swivel, use a proper size Allen wrench and slowly tighten (clockwise) the set screw positioned between the couplings on the uni-swivel. Continue to tighten until the flow stops plus a quarter turn.
TEST #5
THIS TEST SHOULD BE RUN PRIOR TO EVERY USE OF A HYTORC TOOL
Connect the tool, pump, and hoses together as normal. Cycle the pump several times. Cycle the system once more and observe the sequence of operation. As you depress the advance button, the tool drive should turn about. 24 degrees and you should hear an audible “click”. On square drive tools, you will also notice that the accuracy assurance levers will move to the rear of the tool and spring forward. At this point, release the advance button. You should see no further movement and after a moment you will hear another audible “click”. This is how the tools are designed to operate. If you observe any other sequence of operation, the system is out of order and cannot deliver more than 10% of its designed capacity, Take immediate corrective action. For reference, tools and pumps are de signed from the factory plumbed as follows. This ensures that the tool, pump and ONE hose cannot possible be connected up incorrectly.

Retract Side – Female
Hose| Advance Side – Female to Female
Retract Side – Male to Male
Pump| Advance Side – Male
Retract Side – Female

Note that connecting two (or any EVEN number) of hoses together creates “one” hose which is plumbed backwards! Male to Female and Female to Male. This will cause the system to operate backwards per Test #5 above. If your hose isn’t long enough, connect 3 hoses together, move your pump or call HYTORC for a longer hose assembly.

CHANGELOG

07/18/2019 – Removed spare parts pages from manual. For spare parts, refer to t2222

The Service Documentation section of the TORCSAFE Portal orcontact your local HYTORC representative.
01/21/2021 – Front cover shot updated to show tool without back plate.
05/23/2024 – Updated Section [4-8] with current ATEX information.

THE HYTORC UNIVERSE IS MADE UP OF OVER 1,000 TRAINED BOLTING SPECIALISTS TO SUPPORT YOUR BOLTING NEEDS IN OVER 100 COUNTRIES.
Locate your nearest HYTORC representative:
HYTORC.COM/WORLD

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