Clarke 7621820, Operation & Maintenance Instructions Manual

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4. Pump the handle to raise the saddle until it reaches the jacking point.

5. Take care that no obstruction prevents a clean lift. Keep all personnel at a 

safe distance before lifting the vehicle.

NOTE:

The jack may move slightly during operation. It is important 
therefore, that the floor is clean and completely free from debris.

6. Position axle stands directly beneath suitable supporting points on the 

vehicle and very gently twist the handle anticlockwise.

• This will open the control valve to lower the load onto the stands.

7. To stop it lowering at any point, turn the handle clockwise again. Always 

avoid a rapid descent by turning the handle slowly.

8. Carefully lower the vehicle onto the axle stand, checking constantly, 

preferably with an assistant, that the vehicles jacking point rests snugly and 
cleanly on the axle stand, and that the stand is stable before the weight is 
taken.

NOTE:

Ensure this operation is carried out under complete control. DO 
NOT allow the load to drop suddenly as this could damage 
internal parts.

9. Completely remove the jack from the vehicle.

MAINTENANCE

PURGING AIR FROM THE SYSTEM

If air bubbles become trapped inside 
the hydraulic system, the efficiency 
of the jack will be reduced. If the air 
cannot be dispersed just by pumping 
the handle with the valve open, it 
can be purged from the system as 
follows.

1. Turn the control valve counter-

clockwise, relieving the pressure 
within the jack, then remove the 
cover plate & oil filler plug.

• A broad-bladed screwdriver is required for the plug.

2. Pump the handle several times to purge air from the system.

3. Replace the oil filler plug, then turn the control valve clockwise and test the 

jack. If efficiency is still low, check the oil level as below.