Mar-18
Product Code: 2829
Made in China to TQB Brands Pty Ltd specifications
Page 10
Visit us at www.tqbbrands.com.au
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.
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.
Jack lifts only
partially
Too much or not enough oil
Ram Piston is binding
Check oil level
Look for dirt, gummy
deposits, leaks,
misalignment, worn parts or
defective packing.
Jack advances
slowly
Low air supply pressure
Pump not working correctly
Leaking seals
Adjust air supply pressure to
90 – 145psi
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
Release valve is closed
Reservoir is over full
Ram cylinder damaged
internally
Fully open release valve
Drain excess hydraulic fluid
Send jack to authorised
service centre
