Oct-19
TROUBLESHOOTING
PROBLEM
Jack will not lift
Jack lifts only partially
Jack advances slowly
Jack lifts load, but
doesn't hold
Jack leaks oil
Jack will not retract
Jack retracts slowly
PLEASE NOTE:
TO LOWER THE JACK, THE SAME AMOUNT OF FREE AIR FLOW IS REQUIRED AS WHEN LIFTING
POSSIBLE CAUSE
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.
Not enough air pressure
Too much or not enough oil
Pump not working correctly
Leaking seals
Cylinder packing is leaking
Valve not working correctly
(suction, delivery, release or
bypass).
Air-locked system
Worn or damaged seals
Control valve in wrong position
Air Pressure to low
Cylinder damaged internally
Made in China to TQB Brands Pty Ltd specifications
Visit us at www.tqbbrands.com.au
ACTION
Turn control valve knob clockwise.
Fill with oil and bleed system.
Bleed system.
Use correct equipment.
Clean to remove dirt or foreign
matter. Replace oil.
Install appropriate seal kit.
Ensure constant air delivery of
above 120psi
Check oil level
Install seal kit, or replace power
unit
Install seal kit
Install seal kit
Inspect valves. Clean and repair
seat surfaces
Bleed system as per instructions
Install seal kit
Move Control valve to DOWN
position
Ensure constant air delivery of
above 120psi
Send jack to authorised service
centre
BTJ1025TA
P a g e
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