QuickJack 3500SLX - Troubleshooting

QuickJack™ Portable Car Jack 51 P/N 5900263 — Rev. B6 —September 2023
Troubleshooting
This section describes how to troubleshoot your QuickJack. Qualified personnel must accomplish all
repair work.
⚠ WARNING 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.
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 quickjack.com/support or contact QuickJack Support at
support@quickjack.com, (888) 262-3880, or (805) 933-9970.
Issue Action to Take
Frames do not go up or
down.
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.
Frames do not come down. 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.
Frames are stuck at full
height with no weight.
QuickJack Frames require weight to come down from a fully raised
position. Refer to
Frames at Full Height with No Load
.
Frames, loaded with
Vehicle, will not lower to the
ground.
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.
Frames do not rise from a
zero net rise position.
QuickJack Frames cannot raise a full load from a completely flat
position. Refer to
Vehicle with No Tires Fully Lowered
.
Hydraulic Fluid is dirty. Replace the dirty Hydraulic Fluid with clean fluid.
Jack makes odd noises Lubricate hinge points using white lithium grease.
Frames lower without using
the Pendant Control.
Make sure the QuickJack is engaged on a locking position (if it is not,
the Frames will slowly lower).
Pneumatic Spring is not
holding pressure.
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.