RUPES AR11S Straight Grinders Instruction Manual

: September 20, 2024
: RUPES

Table of Contents

RUPES AR11S Straight Grinders
Product Information
Product Usage Instructions
SYMBOLS
TECHNICAL DATA
GENERAL SAFETY WARNINGS
INFORMATION NOISE/MEAN ACCELERATION VALUE
PARTS OF THE TOOL
STARTING UP
- BEFORE STARTING THE TOOL
FITTING/REPLACING ABRASIVE WHEELS OR CUTTERS
ELECTRONIC RPM REGULATION
MAINTENANCE
DISPOSAL
EU DECLARATION OF CONFORMITY
Read User Manual Online (PDF format)
Download This Manual (PDF format)

RUPES AR11S Straight Grinders

Product Information

Specifications:

Brand: VViiaa MMaarrccoonnii
Model: AR11S, AR52ES, AR38S, AR38ES
Country of Origin: Italy
Power Supply: 230V/50Hz
Weight: AR11S – 700g, AR52ES – 800g, AR38S – 30,000g, AR38ES – 25g

Product Usage Instructions

Safety Precautions:
Make sure to read and follow all safety instructions provided in the safety manual that comes with the product.

General Warnings:

Ensure that the power supply voltage matches the one indicated on the tool.
Always unplug the device before performing any maintenance or adjustments.

Setup:

Check that the packaging is intact and undamaged.
Verify that the power source meets the machine’s requirements.
Inspect the power cable and plug for any damage.
Ensure all machine components are correctly assembled.

Operating Instructions:

Wear protective eyewear when operating the tool.
Avoid operating near the cutting line or edges of the workpiece.
Exercise caution when cutting into walls containing gas or water pipes, electrical cables, or other objects to prevent kickback.

Noise and Vibration Information:
The noise and vibration levels are measured according to EN 60745 standards. Make sure to use ear protection when operating the tool.

Maintenance:
Regularly check and maintain the tool according to the maintenance instructions provided in the manual.

Frequently Asked Questions (FAQ):

Q: What should I do if the tool malfunctions?
A: In case of a malfunction, stop using the tool immediately and refer to the troubleshooting section of the user manual. If the issue persists, contact customer support.
Q: How often should I replace the grinding wheel?
A: The frequency of grinding wheel replacement depends on usage. Inspect the wheel regularly for signs of wear and replace it if necessary to ensure optimal performance.

SYMBOLS

Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper interpretation of this symbol will allow you to operate the tool better and safer.

TECHNICAL DATA

On request, collect reduction from Ø 6 to Ø 3 mm.
On request, collect with Ø 3 mm or Ø 6,35 mm.

The values shown are based on a nominal voltage of 230V/50Hz. In the case of voltages frequencies of different power values may vary. Refer to the label technical specifications to the nominal values of the tool.

GENERAL SAFETY WARNINGS

All instructions concerning safety and the prevention of industrial accidents can be found in file SAFETY INSTRUCTIONS, which forms integral part of this documentation. This INSTRUCTION MANUAL only contains additional information that specifically explains how to use the machine.

SPECIFIC USE

The straight grinder is suitable for grinding materials such as wood, metals, plastics or similar, especially in places that are difficult to access.
Use the product only for its intended use. Observe the manufacturer’s indications and the permitted accessories.

GENERAL SAFETY WARNINGS FOR CORRECTION AND ABRASIVE CUTTING OPERATIONS

This tool is designed to be used as a grinder. Refer to all the safety warnings, instructions, illustrations, and specifications supplied with the tool. Failure to follow all the instructions provided below may result in electric shocks, fires, and/or serious injuries.
The use of this tool for smoothing, metal brushing, and polishing operations is not recommended. Its use for applications other than those for which it has been designed may lead to hazardous situations and cause injuries to people.
Do not use accessories that are not specifically designed for the intended use of the tool or that have not been recommended by the manufacturer. The fact that an accessory can be fixed to the tool does not imply that it can be used safely.
The rated speed of accessories must be at least equivalent to the maximum speed of the tool. If operated at a greater speed than the rated one, accessories may break and cause the ejection of chips.
The external diameter and thickness of the accessories must be appropriate to guarantee the protection and safety of the tool. Accessories with incorrect dimensions cannot be adequately protected or controlled.
Abrasive discs, flanges, sanding pads, or other tool holders and accessories must properly fit the wheel holder spindle of the electric tool supplied. Tool holders and accessories that do not fit perfectly with the wheel holder spindle of the electric tool do not rotate evenly, vibrate excessively, and may cause loss of control.
The discs, sanding cylinders, cutting tools, or other accessories fitted on the spindle must be fully inserted into the clamping collet. If the spindle is not sufficiently tightened and/or the protrusion of the disc is excessive, there is a risk that the mounted disc can come loose and be launched at high speeds.
Never use a damaged accessory. Before every use, check the tool holders and accessories and ensure that the abrasive wheels have no chips and cracks, that the sanding pad is not subject to cracks, or excessive wear and that the metal brushes do not have loose or cracked wires. If the tool or accessory used were to slip from your hand and fall, ensure that it has not suffered any damage or use an undamaged accessory. After inspecting and installing the tool holder or accessory, operate the electric tool for one minute with the maximum number of revolutions, taking care to keep away and also to prevent other persons present from approaching the tool holder or accessory in rotation. In most cases, the damaged accessories or tool holders break during this trial period.
Wear protective clothing. Depending on the application in progress, use a face shield, mask, eye protection or safety goggles. If necessary, wear dust masks, hearing protection, protective gloves, or special overalls to protect yourself from small abrasive parts or material. Your eyes must be protected from foreign bodies thrust into the air during the different applications. The dust mask and breathing mask must be able to filter the dust produced during the application. Prolonged exposure to high-intensity noise leads to the danger of losing your hearing.
Pay attention that other people respecting the safety distances from the work area. Anyone entering the work area must wear personal protection equipment. Fragments of the workpiece or broken tools may be launched and cause injury even to those outside the immediate operating area. Keep the device only for isolated surfaces of the handle were work is performed during which the accessory may come into contact with hidden cables or with its power cable. Contact with a live wire can also energize the metal parts of the device, causing electrical shock.
When turning on, always keep well the electrical tool in hand. The reaction torque time of the motor and its accessories may cause the twisting of the tool for one minute with the maximum number of revolutions.
Use clamps to secure the workpiece. Under no circumstances should you hold the workpiece with one hand and the electrical tool with the other hand, while it is being used. By securing the workpiece with clamps, you can have both hands free to better operate the electrical tool. During the cutting of small pieces, of material in rods or tubes, they tend to spin and there is a risk that the tool gets jammed and is launched in the direction of the operator.
Always keep the electric connection cable away from the tool holder or accessories in rotation. If you lose control of the power tool, there is a risk of cutting or hitting the electric connection cable and your hand or arm could touch the tool holder or accessory in rotation.
Do not place the power tool before the tool holder or accessory has come to a complete stop. The tool in rotation can come into contact with the supporting surface, causing you to lose control of the electric tool.
After each replacement of insert tools or after maintenance operations on the electric tool, check that the nut of the clamping collet and other fastening parts are tight. Fastening elements that are not tightened can move unexpectedly and lead to loss of control; components that are not tightened can be thrown violently.
Never use the electric tool in the vicinity of materials flammable. Sparks could ignite these materials.
Do not use accessories that require liquid coolants. The use of water or other coolants can cause an electric shock.
The arbor size of accessories must properly fit the collet of the power tool. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively, and may cause a loss of control.
Mandrel-mounted accessories must be fully inserted into the collet or chuck.
If the mandrel is insufficiently held and/or the overhang of the wheel is too long, the mounted accessory may become loose and be ejected at high velocity.

SAFETY WARNINGS SPECIFIC FOR GRINDING:

Use only wheel types that are recommended for your power tool and only for recommended applications.
Do not position your hand in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your hand, the possible kickback may propel the spinning wheel and the power tool directly at you.

ADDITIONAL SAFETY WARNINGS:

The tool is intended for use with bonded abrasive wheel points (grinding stones) permanently mounted on plain, unthreaded mandrels (shanks).
Observe the instructions of the manufacturer for correct mounting and use of wheels. Handle and store wheels with care.

ADDITIONAL SAFETY WARNINGS FOR GRINDING AND ABRASIVE CUTTING OPERATIONS

Use only the type of cutting/grinding wheels recommended for your tool and the protection specifically designed for the selected cutting/grinding wheel. Cutting/grinding wheels not designed to be used with the tool cannot be adequately protected and are unsafe.
The protection must be solidly fixed to the tool and placed in the safest position possible to minimize the potential risk of contact between the operator and the cutting/grinding wheel. The protection is designed to protect operators from the ejection of fragments in case of breakage and from accidental contact with the grinding wheel.
Cutting/grinding wheels must be used for the recommended applications only. For example, do not use the cutting side of the wheel for grinding operations. Abrasive cutting wheels may break because they are designed to be used for peripheral grinding operations and the application of lateral forces.
Always use the cutting/grinding wheels with undamaged flanges and verify that their shape and dimensions are appropriate for the selected cutting/grinding wheel. The purpose of flanges is to support the cutting/ grinding wheel and reduce the potential risk of breakage. Flanges for cutting wheels may be different from those of grinding wheels.
Do not use grinding/cutting wheels that have been fitted on larger tools.
These cutting/grinding wheels are unsuitable because of their higher speed as compared to that of smaller tools and could therefore cause explosions

FURTHER HAZARD WARNINGS

Avoid having dust accumulating on the workstation. The dust can easily ignite.
A workpiece can be safely locked in position only using an appropriate tightening device or a screw clamp and not just holding it with your hand.
Adjust the protective earmuffs to impede a trail of sparks in the direction of the operator. Do not touch the rough and cut grinding wheels before they are cooled. Activate the locking key of the spindle only when the spindle is stopped. Otherwise, the electrical tool may suffer damage.

Wear protective goggles

INFORMATION NOISE/MEAN ACCELERATION VALUE

The tools are suppressed per the prevention and elimination of radio disturbances measured under standard: EN 60745

DANGER
The indicated measurements refer to new power tools. Daily use causes the noise and vibration values to change.

Displayed emission values are comparative and are to be employed for a provisional assessment of the operator’s risk exposure during the work period. The appropriate evaluation of the work period must also include the tool’s idle and stop periods. These emission values represent the tool’s main applications. If the tool is used for other applications, with other accessories, or if it does not undergo regular maintenance, emission values can significantly increase during operations.

Wear ear protection!

PARTS OF THE TOOL

Technical data identification label
ON/OFF switch
Speed control (AR38ES – AR52ES)
Spindle with seating for collet
Collet
Collet lock-nut
Wrench
Motor ventilation slots

STARTING UP

WARNING Pay attention to the mains voltage! The mains voltage must correspond to the voltage indicated on the technical data identification label (1).
DANGER Before any intervention on the electrical tool take the plug out from the socket

BEFORE STARTING THE TOOL

Before starting up the tool, ensure that:

the packaging is complete and does not show signs of having been damaged during storage or transport;
the power supply conforms with the characteristics of the tool;
the power supply cable and plug are in perfect condition;
all the parts of the tool have been assembled properly and there are no signs of damage;
the ventilation slots are not obstructed.

FITTING/REPLACING ABRASIVE WHEELS OR CUTTERS

AR11S – AR52ES:

Insert the stem of the wheel or cutter in the collet seating (5);
keep the collet spindle (4) still using the wrench (7) supplied and tighten the lock-nut (6);
check that the tool does not rotate off-center.

When the need arises to use tools having a spindle diameter of Ø 3 mm, fit the reduction collet supplied as an accessory.

To fit the reduction collet:

unscrew nut (6);
insert the reduction collet;
re-tighten the nut (6) then follow the normal tool fitting procedure.

AR38S – AR38ES:

Fit pliers (Part. No. 921.131 or 922.131) into the out (Part No. 513.131) and make sure that they are housed in their seal;
fit the milling cutter into the pliers, paying attention to the stem diameter which shall be equal to the pliers hole;
it is recommended to assemble the collet with the nut (6). Then insert the cutter.
it is recommended to assemble the collet with the nut (6). Then insert the cutter.
tighten the nut, the pliers, and the milling cutter on the pliers-holding shall (Part No. 515.31).

When the need arises to use tools having a spindle diameter of ® 3 mm or O 6,35 mm, replace the collet supplied with the spare collet having the necessary seat diameter.

To make the replacement:

unscrew the nut (6);
substitute the collet;
re-tighten the nut (6) then follow the normal tool fitting procedure (see fitting

WARNING:
Before use, check the state of the wheels/cutters The wheels/cutters must be properly assembled and must rotate freely. Never use defective, damaged, or coaxial wheels/cutters. Defective wheels/cutters can fall to pieces and cause the danger of accidents.

Start the tool and check that there are no unusual vibrations or dispatching movements of the tool. Otherwise, switch off the tool immediately and eliminate the cause.

STARTING AND STOPPING

Starting: push the slide of the ON/OFF (2) forward; if the tool is to be locked in the ON position, apply pressure to the front part of the slide switch at the same time.
Stopping: release the slide ON/OFF (2). If locked, press the ON/OFF switch in the lower part downwards and release it in the OFF position.

WARNING:
after an interruption of the electrical energy, if the ON/OFF switch is inserted, it is necessary to release the switch (see Stopped).

ELECTRONIC RPM REGULATION

ELECTRONIC RPM REGULATION (AR38ES-AR52ES)
The rpm can be adjusted by rotating the wheel speed adjustment wheel (3) located on the rear of the tool. The choice of speed depends on the characteristics of the abrasive paper disc and the material to be worked.

USABLE WORKING TOOLS

AR11S – AR52ES:
Abrasive wheels or cutters are available on the market of max Ø 45 mm and spindle Ø 6 mm (3 mm using the reducer supplier on request).

AR38S – AR38ES:

Market grinders or millers with max Ø 25 mm and shanks with Ø 6 mm (3 mm or 6,35 mm using the collect available on request).
The use of tools of larger diameter will overload the motor and drive system leading to rapid deterioration.

MAINTENANCE

All maintenance operations are carried out with the power supply disconnected. At the end of each work session, or when required, remove any dust from the body of the tool using a jet of compressed air, paying particular attention to the motor ventilation slots. No other maintenance operations must be undertaken by the user. Maintenance and cleaning of the inner parts, like brushes, ball bearings, gears, etc., or others, must be carried out only by an authorized customer-service workshop or on www.rupes.com.

Use only the original RUPES parts or accessories.

DISPOSAL

DISPOSAL (WEEE DIRECTIVE)

For EU countries only: According to the European Directive on Waste For EU countries only: According to the European Directive on Waste conformity with national standards, exhausted electrical equipment must be collected separately, to be recycled in an environmentally friendly way. The product, when it reaches the end of its life, must not be dispersed in the environment or thrown away as household waste. It must be disposed of at authorized recycling centers (contact your local authorities to know where to dispose of the product according to the law). The correct disposal of the product contributes to the health and preservation of the environment. Illegal disposal of the product will entail penalties against the offenders. Disposing of the product correctly contributes to protecting human health and safeguarding the environment. Any illegitimate disposal of the product will be punishable by law.

EU DECLARATION OF CONFORMITY

We declare on our responsibility that the hand-held motor-operated tool, which is mentioned in the present operating manual, conforms with the Essential Requirements of Safety of the following Directives: 2006/42/EC; 2014/30/EU; 2011/65/EU.

The tests have been carried out by the following Standards: