Jul-18
Product Code: 2826T
Made in China to TQB Brands Pty Ltd specifications
Page 9
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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
ACTION
Jack will not lift to
full height
•
Release valve is open
•
Low/no oil in reservoir
•
Air-locked system
•
Load is above capacity of jack
•
Delivery valve and/or bypass
valve not working correctly
•
Packing seals worn out or
defective
•
Leak in air line
•
Inadequate air pressure
•
Close release valve knob
•
Add hydraulic oil to reservoir
•
Bleed system as per
instructions
•
Use correct capacity
equipment
•
Clean to remove dirt or
foreign matter. Replace oil
•
Install seal kit
•
Locate leak; tighten
connections or replace hose
•
Set air pressure to 85-142psi
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
•
Release valve is closed
•
Open or clean release valve
Air motor won't run
or runs erratically
•
Leak in air line
•
Inadequate air pressure
•
Air piston is sticking
•
Locate leak, tighten
connections, or replace hose
•
Set air pressure to 85-142psi
•
Lube air motor by adding a
small amount of oil to the
jack's air inlet
