Product Code: BAJ2080
Made in China to TQB Brands Pty Ltd specifications
Page 7
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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
ACTION
Jack will not lift
Control valve in wrong position.
Low/no oil in reservoir.
Air-locked system.
Load is above capacity of jack.
Delivery valve and/or bypass valve
not working correctly.
Seals worn out or defective.
Move control valve to UP
position.
Fill with oil and bleed system.
Bleed system.
Use correct equipment.
Clean to remove dirt or foreign
matter. Replace oil.
Install appropriate seal kit.
Jack lifts only
partially
Too much or not enough oil
Check oil level
Jack advances slowly
Pump not working correctly
Leaking seals
Install seal kit, or replace
power unit
Install seal kit
Jack lifts load, but
doesn’t hold
Cylinder packing is leaking
Valve not working correctly
(suction, delivery, release or
bypass).
Air-locked system
Install seal kit
Inspect valves. Clean and
repair seat surfaces
Bleed system as per
instructions
Jack leaks oil
Worn or damaged seals
Install seal kit
Jack will not retract
Control valve in wrong
position
Move Control valve to
DOWN position
Jack retracts slowly
Cylinder damaged internally
Send jack to authorised
service centre
