6603
4
PROPER STORAGE
It is recommended that this jack be stored in a dry location with all wheels touching the ground on a relatively level surface.
TROUBLESHOOTING
Important: Service jacks are self-contained devices used for lifting, but not sustaining, a partial vehicular load. In accordance with
ASME-PALD standard, section 10-4.1.2 Load Sustaining Test: “A load not less than the rated capacity…shall not lower more than 1/8”
(3.18mm) in the first minute, nor a total of .1875” (4.76mm) in 10 minutes.” Leak down within this range is considered normal opera-
tion and is NOT a warrantable defect.
PROBLEM
Jack
will
not
lift
load
or
leaks
down
excessively
Jack
will
not
hold
load
or
handle
rises
Jack
will
not
lift
to
its
full
height
Jack
will
not
lower
completely
Jack
will
not
lift
smoothly
Jack
will
not
lift
smoothly
or
jack
feels
spongy
Jack
will
not
lift
smoothly
Jack
will
not
lift
smoothly
The release valve is not closed. Turn the valve clockwise tightly. If this does not
work, remove handle, lubricate handle receptacle and handle end, then retry.
The release valve is not closed. Turn the valve clockwise tightly. If this does not
The release valve is not closed. Turn the valve clockwise tightly. If this does not
Low on hydraulic fluid. Refill the jack to the correct level of
hydraulic fluid, using an approved hydraulic fluid or jack oil.
Low on hydraulic fluid. Refill the jack to the correct level of
Low on hydraulic fluid. Refill the jack to the correct level of
Pump seals or back-up ring may be defective. Clean hydraulic fluid passages,
replace seals and refill hydraulic fluid. (Must be serviced by qualified service
Pump seals or back-up ring may be defective. Clean hydraulic fluid passages,
Pump seals or back-up ring may be defective. Clean hydraulic fluid passages,
center)
The hydraulic system has trapped air. Open the release valve, pump handle
rapidly (4) full strokes to purge air, close release valve.
The hydraulic system has trapped air. Open the release valve, pump handle
The hydraulic system has trapped air. Open the release valve, pump handle
Return spring is broken or linkages are binding. Replace spring if broken. Grease
pivot shaft and all lift arm linkages.
Return spring is broken or linkages are binding. Replace spring if broken. Grease
Return spring is broken or linkages are binding. Replace spring if broken. Grease
Discharge ball is not sealing hydraulic system and oil may be dirty. Manually flush
hydraulic system. Open the release valve, as required, to raise and lower the lift
Discharge ball is not sealing hydraulic system and oil may be dirty. Manually flush
Discharge ball is not sealing hydraulic system and oil may be dirty. Manually flush
arm. Manually raise and lower lift arm.
hydraulic system. Open the release valve, as required, to raise and lower the lift
hydraulic system. Open the release valve, as required, to raise and lower the lift
SOLUTION
6603_OpMan_101905.indd 4
10/31/05 2:44:02 PM
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