Troubleshooting - QuickJack 3500SLX Setup And Operation Manual

Troubleshooting

This section describes how to troubleshoot your QuickJack. Qualified personnel must accomplish all
repair work.
⚠
WARNING
Note: If your QuickJack is not functioning correctly, you must stop using it until it is fixed.
If you continue to have an issue, visit
support@quickjack.com, (888) 262-3880, or (805) 933-9970.
Issue
Frames do not go up or
down.
Frames do not come down.
Frames are stuck at full
height with no weight.
Frames, loaded with
Vehicle, will not lower to the
ground.
Frames do not rise from a
zero net rise position.
Hydraulic Fluid is dirty.
Jack makes odd noises
Frames lower without using
the Pendant Control.
Pneumatic Spring is not
holding pressure.
QuickJack™ Portable Car Jack
Only use factory-supplied parts as replacement parts. If you use parts
from a different source, you void your warranty and compromise the safety of
everyone who uses the QuickJack.
quickjack.com/support
Action to Take
Verify the Power Unit is getting power; if not, check the circuit breaker.
Verify none of the Hydraulic Hoses are pinched or leaking. Verify there
is sufficient Hydraulic Fluid in the Fluid Reservoir. Bleed the cylinders.
Make sure there is a Vehicle on the Frames; if not, add one
(the QuickJack is designed to work with weight). Check the pressure in
the Auxiliary Pneumatic Springs ; inflate to 40 to 50 psi, but do not
exceed 50 psi.
QuickJack Frames require weight to come down from a fully raised
position. Refer to
Check the pressure in the Auxiliary Pneumatic Spring; inflate to 40 to
50 psi (2.75 – 3.4 Bar), do not exceed 50 psi (3.4 Bar). Verify power is
being supplied to the QuickJack. Verify the down Solenoid Valve is
functioning. If this does not correct the issue, contact QuickJack
Technical Support at support@quickjack.com, or call
(888) 262-3880 or (805) 933-9970.
QuickJack Frames cannot raise a full load from a completely flat
position. Refer to
Replace the dirty Hydraulic Fluid with clean fluid.
Lubricate hinge points using white lithium grease.
Make sure the QuickJack is engaged on a locking position (if it is not,
the Frames will slowly lower).
Spray a small amount of soapy water to locate the leak. Verify the
Schrader valve core inside the valve stem is tight. You can use a valve
tool to check. Do not overtighten the valve core. It is possible that the
seal on top of the Hydraulic Cylinder has stiffened from lack of use.
Apply a few drops of hydraulic fluid to the piston rod at the top of the
hydraulic cylinder and cycle the Lift up and down a few times. This
should return some elasticity to the seal.
or contact QuickJack Support at
Frames at Full Height with No
Vehicle with No Tires Fully
51
P/N 5900263 — Rev. B6 —September 2023
Load.
Lowered.