09/21
Product Code: 2053T
Made in China to TQB Brands Pty Ltd specifications
Visit us at www.tqbbrands.com.au
Page
8
Problem
Symptom
Cause
Conclusion
Solution
Lifter will not
lift using foot
pump
Pump has no
resistance, lift ram
will not raise
Release pedal valve
pin obstructed
Air in hydraulic system
Valve seat/check ball
failure.
Air cavitation in pump
and/or lift ram
Clean mechanism,
bleed system, ensure
all fasteners are
tight.
Bleed system as per
instructions
Load weight exceeds
lift capacity
Higher capacity lifter
required
Select higher
capacity lifter
Pump circuit
protection valve
actuated
Pump circuit protection
valve needs reset
Depress release
pedal, valve will
reset
Overload actuated
Relief valve needs reset
Contact qualified
technician for repairs
Lifter will not
hold load
Load cannot be
sustained, lift ram
drops under load
Release valve unable
to close
External Leak at lift
ram.
Valve shaft misaligned
Transmission lifter
operated with breather
closed for extended
period causing air ingress
to hydraulic system and
reservoir pressurisation.
Contact qualified
technician for repairs
With ram fully
retracted, open the
breather to let
pressurised air
escape, Bleed
system.
Damaged main seal
Replace main ram seals
Contact qualified
technician for repairs
Pump pedal rises
Main check valve
obstructed
Replace main check valve
ball and reseat valve seat
Lifter will not
lower after
unloading
Lift ram rises after
retracting
Reservoir overfilled
and breather closed
Ram failure due to
reservoir pressurised
caused by excess
reservoir level and closed
breather valve
Fully retract ram and
drain excess oil and
bleed system as per
instructions
Lift ram will not
retract
Breather closed
Breather closed causing
hydraulic lock
Open breather and
bleed system
Contact qualified
technician for repairs
Poor lift
performance
Pump has no
resistance, lift ram
will not raise to full
stroke
Fluid level low
Air trapped in system
breather closed, pump
failure due to
cavitation caused by
air pressure build up
in reservoir
Fill fluid to correct level
Lift ram raised for
extended period causing
air ingress to hydraulic
system
Fill fluid to correct
fluid level and bleed
system
With ram fully
retracted, open the
breather to let
pressurised air
escape bleed system
Contact qualified
technician for repairs
TROUBLESHOOTING
