Clarke 7621037, Operation And Maintenance Instructions

7

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

in the immediate vicinity before removing the handle from its housing, and 
engaging it with the release valve.

2. Very slowly turn the handle anticlockwise to open the release valve, and 

allow the jack to lower the load, under complete control. NEVER, under 
any circumstances, jerk the valve open.

MAINTENANCE

IMPORTANT: Only fully qualified personnel should attempt to repair the jack.

INSPECTION

1. Always visually inspect the jack before use, to ensure that all parts are 

correctly located and secure. Check for hydraulic leaks, signs of damage 
or worn parts.

 Do not use the jack unless it is perfectly serviceable.

• A slight dampness on the ram is normal, but where leakage is found, 

the ram seals must be renewed by your Clarke Spares Department.

2. The jack should be fully inspected annually as follows:

• Check for cracks and deformation of components.

• Check operation and top up the oil level. (see below).

• Remove completely, any rust or corrosion and repaint to prevent 

further corrosion.

• Ensure that all decals and warning notices are in place and legible.

3. After use, store the jack with the ram in its lowest position. This not only 

relieves the hydraulic ram, but also prevents any possibility of corrosion to 
the ram.

4. Do not leave the jack in the open, exposed to the weather. Keep under 

cover. If stored for long periods, inspect before use, clean, and re-oil. For 
servicing, contact your CLARKE dealer or CLARKE Service dept.

TOPPING UP THE OIL

It may be necessary from time to time to top up the hydraulic oil level. 
Proceed as follows.

1. Turn the release valve counterclockwise and allow the ram to retract to its 

lowest position.

• It may be necessary to apply force to the saddle for lowering 

without any weight on the jack.

2. With the jack in the level position, remove the filler plug and stand upright. 

• The oil should be level with the bottom of the oil filler hole.