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

• A typical air line layout is shown above. If an automatic in-line filter/

regulator is used, it will keep the tool in good condition, but should 
be regularly checked and topped up with oil. SAE 10 oil should be 
used, and the lubricator adjusted to approx 2 drops per minute.

BEFORE USE

NOTE: 

Ensure the compressor is turned off.

1. If required, connect an in-line mini 

oiler to the tool.

• A mini oiler helps to prolong the 

life of the impact wrench. 
Remove the oil fill screw from 
the side of the mini oiler and fill 
with Air-line Oil available from 
your CLARKE dealer. Replace 
the screw before using the 
wrench.

2. If a mini-oiler is not being used, run 

a few drops of oil through the tool 
before use. It can be entered 
through the inlet strainer or via the 
hose at the nearest connection to 
the air supply.

3. Connect a suitable hose as shown.

4. Connect the other end of the hose 

to the compressor.

5. Your impact wrench is now ready 

for use.

You can fit a whip hose with a quick fit coupling if required (available from 
your Clarke dealer.)

WARNING: COMPRESSED AIR CAN BE DANGEROUS. ENSURE THAT YOU 
ARE FAMILIAR WITH ALL PRECAUTIONS RELATING TO THE USE OF AIR 
COMPRESSORS AND COMPRESSED AIR SUPPLY.

Summary of Contents for CAT78

Page 1: ...OPERATING MAINTENANCE INSTRUCTIONS GC0813 IMPACT WRENCH MODEL NO CAT78 PART NO 3110790...

Page 2: ...and operating instructions carefully before using this product Please pay particular attention to all sections of these instructions that display warning symbols and notices GUARANTEE This product is...

Page 3: ...tired or under the influence of alcohol drugs or medication 2 Always wear eye protectors when using the impact wrench eye protectors must provide protection from flying particles from the front and t...

Page 4: ...k change couplings should not be located at the tool They add weight and could fail due to vibration 17 DO NOT force or misuse the tool It will do a better and safer job at the rate for which it was d...

Page 5: ...0 8988 7400 E mail Parts clarkeinternational com or Service clarkeinternational com OVERVIEW NO DESCRIPTION NO DESCRIPTION 1 Anvil 4 Speed Control Regulator 2 Forward Reverse Valve 5 1 4 BSP Female Ai...

Page 6: ...unusually long air hose is required over 8 metres the line pressure or the hose inside diameter may need to be increased The minimum hose diameter should be 5 16 8mm ID and fittings should have the sa...

Page 7: ...h Remove the oil fill screw from the side of the mini oiler and fill with Air line Oil available from your CLARKE dealer Replace the screw before using the wrench 2 If a mini oiler is not being used r...

Page 8: ...ted in the forward direction 2 For loosening the wrench should be operated in the reverse direction FITTING THE IMPACT SOCKET 1 Select the impact socket you require which must be in good condition and...

Page 9: ...ly turn the regulator until the nut or bolt moves very slightly in the direction in which it was set The wrench is now set to replicate that tightness Note the setting for future use When critical tor...

Page 10: ...NING Keep the body of the impact wrench clean and free from debris Grit or gum deposits in the tool may reduce efficiency SERVICE AND REPAIR If the tool runs erratically or becomes inefficient althoug...

Page 11: ...ol for 5 seconds in order to lubricate the internal parts When not in use disconnect from air supply clean tool and store in a safe dry place SPECIFICATIONS Please note that the details and specificat...

Page 12: ...ealer 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 Regulato...

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

Page 14: ...Screw 7 Set Screw 33 Screw 8 Housing Bush 34 Exhaust Cover 9 N A 35 Throttle Lever 10 Socket Retaining Ring 36 Pin 11 O Ring 37 Push Pin 12 Anvil 38 O Ring 13 Reverse Valve 39 Gasket 14 Hammer Cage P...

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

Page 16: ......

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