Troubleshooting Guide
Hydraulic Problems
Troubleshooting Guide
HDdoc072619
6-6
6
Bad check valve (results
in one of the toe boards
experiencing down-creep)
Check the release valve as instructed
above. If the release valve is good, replace
the high-pressure hydraulic check valves
(A12869) located on the pump.
Pump runs but makes
“growling” sound and
hydraulic functions are
slow, jerky or don’t work
at all.
Low fluid level
Check fluid level and add fluid as neces-
sary. Check for leaks in the system at the
control box fittings, hoses and cylinders
One of the log loader cyl-
inders does not move
when lowering the loader
causing the foot of other
to raise completely before
loader will start down.
Damaged cylinder shaft
Replace the cylinder that is not moving
PROBLEM
CAUSE
SOLUTION