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5-376-000094
REV. 3 - 03/10
Section III: Maintnenace
Page 85
TROUBLESHOOTING
HYDRAULIC PUMP
Problem
Cause
Solution
Hydraulic oil leak
a. Defective shaft seal
a. Replace shaft seal
between P.T.O. and
pump
Pump leaks at front
a. Defective seals
a. Replace seals
and rear covers
WINCH FUNCTIONING IMPROPERLY
Problem
Cause
Solution
Winch screeches
a. Insufficient lubrication
a. Lubricate per lube chart
during operation
Winch will not pull
a. Free-spooling device
a. Engage
load or take in wire
not engaged
rope
b. Sheared keys or broken
b. Inspect or replace
coupling
c. Hydraulic pump worn
c. Inspect and replace
Free-spool device
a. No air pressure
a. Turn truck on
b. Insufficient air pressure
b. Allow truck to run
c. Defective pressure switch c. Inspect and replace
d. Leaking air line
d. Inspect and replace
Cable tensioner
a. No air pressure
a. Turn truck on
device non-functional b. Insufficient air pressure
b. Allow truck to run
c. Defective pressure switch c. Inspect and replace
d. Leaking air line
d. Inspect and replace
Cable speed shift
a. No air pressure
a. Turn truck on
nonfunctional
b. Insufficient air pressure
b. Allow truck to run
c. Defective pressure switch c. Inspect and replace
d. Leaking air line
d. Inspect and replace
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