Clarke CAT23C Specifications download pdf (Page 8)

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

was set. The tool is now set to duplicate that tightness. For future use, note

that specific setting.

6. When critical torque values are not required, turn nut or bolt until it fits

snugly, and then turn a further one quarter to one half a turn - slightly

more if gaskets are used between surfaces.

7. For additional power during disassembly work, turn the air line regulator to

its highest setting.

This tool is rated at 5/8" bolt size, and is downgraded for spring ‘U’ bolts, tie

bolts, long cap screws, double depth nuts, badly rusted conditions, and

spring loaded fasteners as these conditions absorb much of the impact

power.

8. Turn off the wrench as soon as the impact sound is heard.

IMPORTANT: Where the torque setting is critical, the final tightening of nuts or bolts,

must be by hand using a properly calibrated torque wrench.

LOOSENING A WHEEL NUT

1. Remove any wheel trim, before selecting the appropriate socket and

placing firmly on the square drive of the wrench.

2. With the FORWARD/NEUTRAL/REVERSE switch in the REVERSE running

position, and holding the wrench firmly in BOTH HANDS, pull the trigger. The

nut will be impacted repeatedly until it is loosened. IMPORTANT! Release

the trigger immediately the nut begins to loosen.

3. Jack up the vehicle according to the vehicles handbook so that the

wheel is clear of the ground, then proceed to fully undo the wheel nuts.

4. Soak rusted nuts in penetrating oil, and break rust seal before twisting off

with the wrench.

ENSURE THAT THE CORRECT SOCKET IS BEING USED FOR THE NUTS ON

YOUR PARTICULAR VEHICLE. AN INCORRECT SOCKET SIZE IS LIKELY TO

DAMAGE THE HEADS OF THE BOLTS/NUTS.

TIGHTENING A NUT

1 Start the nut by hand, ensuring it is not cross threaded, then with the

appropriate socket installed on the wrench, place it on the nut.

2. With the FORWARD/NEUTRAL/REVERSE switch in the clockwise (FORWARD)

running position, and holding the wrench firmly in BOTH HANDS, pull the

trigger.

3. Run each nut up in turn until it is ‘nipped’ up only - do not tighten. When

all nuts are nipped up, tighten progressively by pulling the trigger fully and

allowing the action to operate for 3 to 4 impacts only to prevent

overtightening.

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Clarke CAT23C Specifications Page 8