Product Information

General Information

WARNING

Risk of Property Damage or Severe Injury

Ensure that you read, understand and follow all instructions before operating the tool. Failure to follow all the instructions may result in electric shock, fire, property damage and/or severe bodily injury.

Read all Safety Information delivered together with the different parts of the system.
Read all Product Instructions for installation, operation and maintenance of the different parts of the system.
Read all locally legislated safety regulations regarding the system and parts thereof.
Save all Safety Information and instructions for future reference.

In this Section

Safety Signal Words

The safety signal words Danger, Warning, Caution, and Notice have the following meanings:

DANGER	DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING	WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION	CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE	NOTICE is used to address practices not related to personal injury.

Warranty

Product warranty will expire 12 months after the product is first taken into use, but will in any case expire at the latest 13 months after delivery.
Normal wear and tear on parts is not included within the warranty.
- Normal wear and tear is that which requires a part change or other adjustment/overhaul during standard tools maintenance typical for that period (expressed in time, operation hours or otherwise).
The product warranty relies on the correct use, maintenance, and repair of the tool and its component parts.
Damage to parts that occurs as a result of inadequate maintenance or performed by parties other than Atlas Copco or their Certified Service Partners during the warranty period is not covered by the warranty.
To avoid damage or destruction of tool parts, service the tool according to the recommended maintenance schedules and follow the correct instructions.
Warranty repairs are only performed in Atlas Copco workshops or by Certified Service Partners.

Atlas Copco offers extended warranty and state of the art preventive maintenance through its ToolCover contracts. For further information contact your local Service representative.

For electrical motors:

Warranty will only apply when the electric motor has not been opened.

Website

Information concerning our Products, Accessories, Spare Parts and Published Matters can be found on the Atlas Copco website.

Please visit: www.atlascopco.com.

ServAid

ServAid is a portal that is continuously updated and contains Technical Information, such as:

Regulatory and Safety Information
Technical Data
Installation, Operation and Service Instructions
Spare Parts Lists
Accessories
Dimensional Drawings

Please visit: https://servaid.atlascopco.com.

For further Technical Information, please contact your local Atlas Copco representative.

Safety Data Sheets MSDS/SDS

The Safety Data Sheets describe the chemical products sold by Atlas Copco.

Please consult the Atlas Copco website for more information www.atlascopco.com/sds.

Country of Origin

For the Country of Origin, please refer to the information on the product label.

Dimensional Drawings

Dimensional Drawings can be found either in the Dimensional Drawings Archive, or on ServAid.

Please visit: http://webbox.atlascopco.com/webbox/dimdrw or https://servaid.atlascopco.com.

Overview

Main Components and Functions

Position	Part	Function
1	Air inlet	For connection to compressed air through a whip hose.
2	Throttle lever	Starts and stops the tool.
3	Security mechanism	A two-step function for a safe start and stop of the tool. Press the release arm forward to release the throttle lever
4	Support handle	Adjustable for a flexible working position for left or right handed operator.
5	Spindle locking button	Locking the spindle to facilitate fastening of the wheel.
6	Spindle	For fastening of the wheel.

Technical Product Data

Technical Product Data can be found on either ServAid, or the Atlas Copco website.

Please visit: https://servaid.atlascopco.com or www.atlascopco.com.

Service Overview

Overhaul

The tool should be examined regularly at six-month intervals. If it is in heavy duty service or not running properly it should be taken out of service more often.
To increase life length of gears, change grease and replace bearings and sealings more often.

After a maximum of 1000 hours the angle gear grease shall be changed. If the grease are not changed in time other angle gear and motor parts might get damaged.
For correct lubrication properties use Rhenus LKR03, a semifluid type of grease. The required amount of grease is maximum 11 cm³.

The strainer at the air inlet should be cleaned frequently to prevent clogging and decreased capacity.

WARNING

Risk of Serious Injury or Death

Overspeed can result in serious injury or death.

If a speed governor is used, make sure that the correct speed governor is assembled. Careless handling may put it out of order
Do not disassemble security parts and always replace them if they are damaged.
Always do a free speed check of the tool after service.

Replacement of Vanes

Replace the vanes in the motor when a power drop of the tool is experienced. If the vanes are not replaced in time other motor parts may be damaged. For increased life length of the vanes use an oil lubricator to dose oil into the air inlet.

General Service and Maintenance Safety

Do not dismantle the tool.

The service must only be done by authorized workshops or qualified service technicians.

WARNING

Polymer hazard

The vanes in this product contain PTFE (a synthetic fluoropolymer). Due to wear, there might be PTFE particles inside the product. Heated PTFE can produce fumes which may cause polymer fume fever with flu-like symptoms, especially when smoking contaminated tobacco.

Health and Safety recommendations for PTFE must be followed when handling vanes and other components:

Do not smoke when servicing this product
PTFE-particles must not come in contact with open fire, glow or heat
Motor components must be washed with cleaning fluid and not blown clear with an air line
Wash your hands before starting any other activity

Service Recommendations

Preventive maintenance is recommended at regular intervals. See the detailed information on preventive maintenance. If the product is not working properly, take it out of service and inspect it.

If no detailed information about preventive maintenance is included, follow these general guidelines:

Clean appropriate parts accurately
Replace any defective or worn parts

Installation

Installation Requirements

Air Quality

For optimum performance and maximum product life we recommend the use of compressed air with a maximum dew point of +10°C (50°F). We also recommend to install an Atlas Copco refrigeration type air dryer.
Use a separate air filter which removes solid particles larger than 30 microns and more than 90% of liquid water. Install the filter as close as possible to the product and prior to any other air preparation units to avoid pressure drop.

For impulse/impact tools make sure to use lubricators adjusted for these tools. Regular lubricators will add too much oil and therefore decrease the tool performance due to too much oil in the motor.

Make sure that the hose and couplings are clean and free from dust before connecting to the tool.

Both lubricated and lubrication free products will benefit from a small quantity of oil supplied from a lubricator.

Air Lubrication Guide

Brand	Air lubrication
Atlas Copco	Optimizer (1 liter) 9090 0000 04
Q8	Chopin 46
Shell	Shell Air Tool Oil S2 A 320

Compressed Air Connection

WARNING

Risk of severe injury

Air under pressure can cause injury.

Always shut off the air supply when not in use or before any adjustments.
Drain the hose of air pressure and disconnect the tool from air supply when not in use or before any adjustments.
Always use the correct hose size and air pressure for the tool.

WARNING

Compressed Air

High air pressure can cause severe damage and bodily injury.

Do not exceed maximum air pressure.
Make sure that there are no damaged or loose hoses or fittings.

For correct air pressure and hose size, see the Technical Product Data on - https://servaid.atlascopco.com or www.atlascopco.com.

Make sure that the hose and couplings are clean and free from dust before connecting to the tool.

Installation Instructions

Visual Inspection - Tools and Accessories

Inspect the tool and its parts visually before use.
The parts in the list below may vary depending on model.

Wheel guard or Backing pad
Adapters, nuts or flange washers
Support handle
Throttle lever and security mechanism
Autobalancer
Spindle

Look for any damage, grease or oil leakage that can compromise the safety of the tool.

Visual Inspection - Air Installation

Inspect the air installation visually from the supply point to the tool before use.

Hose
Couplings
System pressure
Air filter

Look for any damage that can compromise the safety of the tool.

Installation Overview

Legend to page 2

Recommended torque
Hose length
Hose diameter
Max working air pressure
Max free speed
Recommended torque
Recommended torque
Spindle thread

Operation

Ergonomic Guidelines

Consider your workstation as you read through this list of general ergonomic guidelines to identify areas for improvement in posture, component placement, or work environment.

Take frequent breaks and change work positions frequently.
Adapt the workstation area to your needs and the work task.
- Adjust for a convenient reach range by determining where parts and tools need to be located to avoid static load.
- Use workstation equipment such as tables and chairs appropriate for the work task.
Avoid work positions above shoulder level or with static holding during assembly operations.
- When working above shoulder level, reduce the load on the static muscles by lowering the weight of the tool, using for example torque arms, hose reels or weight balancers. You can also reduce the load on the static muscles by holding the tool close to the body.
- Take frequent breaks.
- Avoid extreme arm or wrist postures, particularly during operations requiring a degree of force.
Adjust for a convenient field of vision that requires minimal eye and head movements.
Use appropriate lighting for the work task.
Select the appropriate tool for the work task.
In noisy environments, use ear protection equipment.
Use high-quality inserted tools and consumables to minimize exposure to excessive levels of vibration.
Minimize exposure to reaction forces.
- When cutting:
  
  A cut-off wheel can get stuck if the cut-off wheel is bent or not guided properly. Use the correct flange for the cut-off wheel and avoid bending the cut-off wheel during operation.
- When drilling:
  
  The drill might stall when the drill bit breaks through. Use support handles if the stall torque is high. The safety standard ISO11148 part 3 recommends using a device to absorb a reaction torque above 10 Nm for pistol grip tools and 4 Nm for straight tools.
- When using direct-driven screwdrivers or nutrunners:
  
  Reaction forces depend on the tool settings and joint characteristics. Strength and posture determine the amount of reaction force that an operator can tolerate. Adapt the torque setting to the operator's strength and posture and use a torque arm or reaction bar if the torque is too high.
In dusty environments, use a dust extraction system or wear a mouth protection mask.

Configuration Instructions

Wheel Configuration Options

WARNING

Risk of injury

Always shut off air supply, drain hose of air pressure and disconnect tool from air supply when not in use, before changing accessories or when making repairs.
Always wear protective gloves when changing accessories or when making repairs.

The table below shows the configuration option for a pad with applicable attachment parts.

1	Washers	3	Nut locking the pad and abrasive
2	Pad	4	Locking kit

Lever Assembly Options

WARNING

Risk of injury

Always shut off air supply, drain hose of air pressure and disconnect tool from air supply when not in use, before changing accessories or when making repairs.
Always wear protective gloves when changing accessories or when making repairs.

The lever can be turned from the top side to the underside of the tool.

Remove the support handle and attach two screws in the holes of the angle head.

Hold the tool by the screws using a vice.
Remove the lever using a slotted screwdriver.
Remove the trigger pin with bushing using a 10 mm socket.

Remove the adapter using a 21 mm socket.

Remove the inlet/outlet parts.
Remove the insulation sleeve.
Move the cover to the opposite side of the casing

Put the insulation sleeve back in position and turn it to attach it to the casing.
Assemble the inlet/outlet parts.

Make sure the inlet is positioned correctly relative to the trigger pin bushing.

Apply Loctite to the bushing threads.

Attach the bushing loosely by hand.

Apply Loctite to the adapter threads.

Tighten the adapter using a 21 mm socket and torque wrench.

Tighten the trigger pin bushing using a 10 mm socket and a torque wrench.
Attach the lever in the opposite position.

Fitting of Support Handle

WARNING

Risk of injury

Always shut off air supply, drain hose of air pressure and disconnect tool from air supply when not in use, before changing accessories or when making repairs.
Always wear protective gloves when changing accessories or when making repairs.

The support handle can be attached to any side of the tool.

Remove the support handle by turning it counterclockwise.
Attach the support handle to the opposite side.
Tighten the handle clockwise to the recommended torque.

Operating Instructions

Free Speed Check

Do a daily free speed check with a tachometer. Always do a free speed check of the tool after service.

This check should be done with the sanding equipment detached.

The free speed must not be more than the rated speed marked on the tool.

Operating the Tool

WARNING

Risk of injury

Always use applicable protective equipment when working with the tool such as; eye protection, hearing protection and non skid safety shoes.
Always wear protective gloves when replacing accessories or when making repairs.
Make sure that the working area is kept free from other people to prevent injuries.
Make sure that the workpiece is safely attached.
Make sure that the air hose is not under pressure before connecting the tool to the air supply.
Never remove or attach the throttle lever or security mechanism with tape or similar.
Make sure that the selected combination of abrasive equipment and attachments parts correspond to national regulations.
Make sure that the abrasive equipment is not cracked or damaged.
Make sure that the maximum speed of the abrasive equipment is higher than or equal to the speed marked on the tool.
Make sure that the speed of the tool is not higher than the maximum rated speed marked on the tool.
When working with the tool, always hold the tool with two hands and in such a way that they are kept away from moving parts.
Always operate the tool in the recommended working direction.
Never touch any rotating parts when the tool is running or connected to the air line.
Never use the tool above head height.
Stop using the tool if abnormally loud noises and vibrations occur during use.

Instructions

Connect the tool to the air supply (if not already connected).
Point the air exhaust away from the operator.
Push the security mechanism to release the throttle lever.
Push down the throttle lever to start the sander.
Replace the throttle lever if it is not working properly.

WARNING

Risk of Damage and Injury

Rotating parts may cause damage and injury

Make sure that the tool is switched off and has stopped rotating before putting it down.

Service

Maintenance Instructions

General Service and Maintenance Safety

Do not dismantle the tool.

The service must only be done by authorized workshops or qualified service technicians.

WARNING

Polymer hazard

The vanes in this product contain PTFE (a synthetic fluoropolymer). Due to wear, there might be PTFE particles inside the product. Heated PTFE can produce fumes which may cause polymer fume fever with flu-like symptoms, especially when smoking contaminated tobacco.

Health and Safety recommendations for PTFE must be followed when handling vanes and other components:

Do not smoke when servicing this product
PTFE-particles must not come in contact with open fire, glow or heat
Motor components must be washed with cleaning fluid and not blown clear with an air line
Wash your hands before starting any other activity

Service Recommendations

Preventive maintenance is recommended at regular intervals. See the detailed information on preventive maintenance. If the product is not working properly, take it out of service and inspect it.

If no detailed information about preventive maintenance is included, follow these general guidelines:

Clean appropriate parts accurately
Replace any defective or worn parts

Overhaul

The tool should be examined regularly at six-month intervals. If it is in heavy duty service or not running properly it should be taken out of service more often.
To increase life length of gears, change grease and replace bearings and sealings more often.

After a maximum of 1000 hours the angle gear grease shall be changed. If the grease are not changed in time other angle gear and motor parts might get damaged.
For correct lubrication properties use Rhenus LKR03, a semifluid type of grease. The required amount of grease is maximum 11 cm³.

The strainer at the air inlet should be cleaned frequently to prevent clogging and decreased capacity.

WARNING

Risk of Serious Injury or Death

Overspeed can result in serious injury or death.

If a speed governor is used, make sure that the correct speed governor is assembled. Careless handling may put it out of order
Do not disassemble security parts and always replace them if they are damaged.
Always do a free speed check of the tool after service.

Replacement of Vanes

Replace the vanes in the motor when a power drop of the tool is experienced. If the vanes are not replaced in time other motor parts may be damaged. For increased life length of the vanes use an oil lubricator to dose oil into the air inlet.

Lubrication Instructions

Rust Protection and Cleaning

Water in the compressed air can cause rust. To prevent rust we strongly recommend to install an air dryer.

Water and particles can cause sticking of vanes and valves. This can be prevented by installing an air filter close to the product to avoid pressure drop.

Before longer standstills always protect your tool by adding a few drops of oil into the air inlet. Run the tool for 5–10 seconds and absorb any access oil at the air outlet in a cloth.

NOTICE

Do not try to clear the air path using sharp tools.

The air inlet is equipped with a strainer. If this is punctured, foreign objects may harm the valves, resulting in overspeed.

Lubrication Guide

Grease for general purpose
BP	Energrease LS-EP2
Castrol	OBEEn UF 1
Esso	Beacon EP2
Q8	Rembrandt EP2
Mobil	Mobilegrease XHP 222 NLG2
Klüber Lub.	Klübersynth UH 1 14-151
Texaco	Multifak EP2
Molykote	BR2 Plus

Grease for angle gears
Rhenus	LKR03

Troubleshooting

Troubleshooting

Troubleshooting

The table below shows the most common troubleshooting procedures. Note that some actions must only be done by authorized workshops or qualified service technicians.

Problem	Reason	Action
Tool does not start	No air flow to the tool	Do a check of air connection and compressor
	Rotor in dead position	Disconnect air supply and then turn spindle quickly
	Air filter in tool air inlet blocked	Clean air filter carefully
	Throttle valve broken	*
	Motor jammed	*
Inconsistent idling speed	Unstable air pressure	Do a check of air pressure regulator
	Resonance from exhaust	Start tool rapidly and slowly until noise disappear
	Worn governor	*
Low power	Low air pressure	Do a check of air pressure
	Too long length or too small inner diameter of air supply hoses and pipes	Do a check of air hoses and air pipes
	Too small inner diameter of air connections	Do a check of air connections
	Blocked air supply filters	Clean or replace filters
	Air filter in tool air inlet blocked	Clean air filter carefully
	Too humid air (high dew point)	Do a check of the compressor
	Worn throttle valve	*
	Worn governor	*
	Worn vanes	*
Too hot angle gear	Too much or too little grease in gear box	Do a check of grease level (to little grease may cause premature wear)
	Blocked air relief passage	*
	Damaged seals	*
	Damaged needle bearing	*
	Damaged spindle bearing	*
	Damaged gear wheels	*
Tool too cold by exhaust	Because of pressure drop of inlet air exhaust air gets cold	Assemble exhaust hose
Vanes wear fast	High friction in motor	Add oil into inlet air to increase life length of vanes
	Dirty air might wear vanes	Do a check of filters in tool air inlet and in air supply
Gear wear fast	Too little grease in angle gear	Refill correct amount of grease regularly.
	Loose oil plug and spindle lock	Tighten oil plug or spindle lock
	Worn or damaged seals	*
	Damaged o-rings	*
	Damaged bearings	*
Grease leakage	Loose oil plug and spindle lock	Tighten oil plug or spindle lock
	Worn or damaged seals	*
	Damaged o-rings	*
	Damaged bearings	*
	Too much grease in gear housing	Do a check of that angle gear has correct amount of grease
Tool starts unexpectedly	Valve pin jammed in start position	Replace pin and bushing
	Damaged security meachanism	Replace lever
	Damaged throttle valve	*
Vibrations	Worn or damaged grinding wheel	Replace wheel
	Autobalancer not working properly	Replace autobalancer
	Damaged spindle	*
	Worn or damaged flange washers	Replace flange washers
Too high idle speed	Governor	*
	Too high air pressure	Do a check of air pressure
Abnormal or high sound	Resonance from exhaust	Restart tool rapidly and slowly until noise dissapear
	Exhaust hose is missing	Assemble exhaust hose
	Too little grease in gear housing	*
	Damaged gear	*
	Damaged spindle	*
	Bad noise from gears	*
	Worn bearings	*

* This service must only be done by authorized workshop or qualified service technician.

Recycling

Environmental Regulations

When a product has served its purpose it has to be recycled properly. Dismantle the product and recycle the components in accordance with local legislation.

Batteries shall be taken care of by your national battery recovery organization.

Recycling Information

Position	Part	Recycle as
1	Housing	Metal, Aluminium
2	Insulation sleeve	Plastics, Other, TPU
3	Vane motor	Metal, Steel*
4	Spindle complete	Metal, Steel
5	Wheel guard	Metal, Steel
6	End cover	Metal, Steel
7	Screws	Metal, Steel
8	Autobalancer	Metal, Steel
9	Bushing	Metal, Brass
10	Inlet	Metal, Steel
11	Lever complete	Metal, Steel
12	Adapter	Metal, Steel

*The vanes in the product contains PTFE, the normal health and safety recommendations concerning PTFE must be observed.