8

TROUBLESHOOTING

PROBLEM

CAUSE

SOLUTION

Jack will not lift

the rated load

Low oil level

See ‘Checking the Oil Level‘on p 6

Valve not closed

Turn the release knob fully clockwise

Air in the system

Purge the system as on p 5

Jack lower when

under load

Release valve not fully

closed

Turn the release knob fully clockwise

Air in the system

Purge the system as on p 5

Pump feels

Spongy

Low oil level

See ‘Checking the Oil Level‘on p 6

Air in the system

Purge the system as on page 5

Jack will not lift

full height

Low oil level

See ‘Checking the Oil Level‘on p 6

Air in the system

Purge the system as on p 5

Jack will not

lower completely

Return spring may be

faulty

Return to your Clarke dealer for

repair

If any of these remedies fail to restore your jack, consult your Clarke dealer