Page 90
TRAVERSE LIFT
Pettibone Michigan, L.L.C. OWNER/OPERATOR MANUAL MODELS 6036/6044/8036/8044
Cylinder will not
operate when rocker switch
is actuated
Cylinder drifts (will not
remain in position)
Failed hose or hose connec-
tions.
Low oil level in reservoir.
Plugged sump strainer.
Oil bypassing spool in main
valve.
Rod wiper leaking exces-
sively.
Oil bypassing cylinder
piston.
Faulty pump operation.
Load larger than capacity.
Oil bypassing cylinder
piston.
Oil bypassing counterbal-
ance valve cartridge.
Oil bypassing spool in main
valve.
Spool not centering in main
valve.
Replace hose or tighten
loose connections.
Add oil to FULL mark on
reservoir dipstick.
Clean strainer.
Replace defective spool
seal(s).
Replace defective wiper.
Replace defective piston
seal.
Repair or replace pump.
Reduce to rated load capac-
ity at rated load center.
Replace defective piston
seal.
Replace defective cartridge
seal(s).
Replace defective spool
seal (s).
Replace spool centering
springs.
SYMPTOM PROBABLE CAUSE REMEDY
FORK TILT CYLINDER TROUBLESHOOTING
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