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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]

TROUBLESHOOTING

SYMPTOM

PROBLEM

SOLUTION

Tool runs at normal 
speed but slows down 
under any load.

1. Excessive pressure on
    tool.
2. Motor parts worn.

3. Worn or sticking
    mechanism due to
    lack of lubricant.

1. Reduce the force
    applied to the tool.
2. Return to Clarke dealer
    for repair.
3. Drip air tool lubricating
    oil into air inlet. Allow oil
    to soak moving parts
    before using.

Tool runs slowly. Air flows 
weakly from exhaust.

1. Motor parts jammed
    with gum/dirt.
2. Regulator in closed
    position.
3. General airflow
    blocked by dirt.

1. Examine inlet air filter for
    cleanliness.
2. Adjust regulator to open
    position.
3. Operate tool in short
    bursts.

Tool will not run. Air flows 
freely from exhaust.

1. Motor vanes stuck
    due to buildup of
    foreign material.

1. Disconnect air supply
    and rotate tool assembly
    manually.
2. Try operating tool in
    short bursts.
3. Drip a few drops of air
    tool lubricating oil into air
    inlet to soak moving
    parts.

Tool will not shut off.

1. Throttle O-rings 
    damaged or ill-fitting
    in seat.

1. Return to Clarke dealer
    for repair.

Summary of Contents for 3120142

Page 1: ...OPERATING MAINTENANCE INSTRUCTIONS ORIGINAL INSTRUCTIONS GC0522 rev 2 AIR DIE GRINDER KIT MODEL NO CAT128 CAT129 PART NO 3120142 3120143...

Page 2: ...let carefully you encounter problems take the unit to your local CLARKE dealer IMPORTANT Please read all of the safety and operating instructions carefully before using this product The following safe...

Page 3: ...tors and a dust mask when using the air tool 4 Do not overreach Keep proper footing and balance at all times 5 Never use oxygen CO2 combustible gases or any type of bottled gas as a source of power fo...

Page 4: ...tool They add weight and could fail due to vibration 19 Do not force or misuse the tool It will do a better and safer job at the rate for which it was designed 20 Do not remove any labels Damaged labe...

Page 5: ...es a CAT128 Die Grinder together with the accessories shown When opening the case for the first time check against the following list that all the items are present Any damage or deficiency should be...

Page 6: ...ed to be increased The air hose must be rated at least 150 of the maximum operating pressure of the tool A typical air line layout is shown above If an automatic in line filter regulator is used it wi...

Page 7: ...being used run a few drops of oil through the tool before use It can be entered through the air inlet or via the hose at the nearest connection to the air supply 4 Connect a suitable hose to the air...

Page 8: ...GRINDING STONE IMPORTANT Never use chipped or cracked grindstones Never use grindstones not rated to operate at a speed equal to or greater than the full operating speed of the air tool 1 Slip the sha...

Page 9: ...deflector Twist the exhaust air deflector sleeve to direct the air as required away from the workpiece or operator DISCONNECTING THE AIR SUPPLY 1 Do not disconnect the air supply hose until the compr...

Page 10: ...fore using Tool runs slowly Air flows weakly from exhaust 1 Motor parts jammed with gum dirt 2 Regulator in closed position 3 General airflow blocked by dirt 1 Examine inlet air filter for cleanliness...

Page 11: ...nd flushing out the tool with gum solvent or oil or failing this the motor may require dismantling This is better left to your Clarke dealer SERVICE AND REPAIR If the tool runs erratically or becomes...

Page 12: ...that the details and specifications contained herein are correct at the time of going to print However CLARKE International reserve the right to change specifications at any time without prior notice...

Page 13: ...13 Parts Service 020 8988 7400 E mail Parts clarkeinternational com or Service clarkeinternational com PARTS LIST DIAGRAM...

Page 14: ...ng 5 Pin 27 Rear Plate 6 Trigger Pin 28 Pin 7 Soft Grip 29 Rotor 8 O Ring 30 Rotor Blade 9 O Ring 31 Cylinder 10 Valve Stem 32 Rotor Collar 11 Valve Spring 33 Front Plate 12 O Ring 34 Pin 13 Valve Plu...

Page 15: ...15 Parts Service 020 8988 7400 E mail Parts clarkeinternational com or Service clarkeinternational com DECLARATIONS OF CONFORMITY...

Page 16: ......

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