13
Troubleshooting
Fluid leak at air
gap between
motor and valve
housing.
Motor O-rings worn.
See your authorized dealer for
repair.
Open center tool on a closed
center circuit or vice versa.
Use tools to match circuit.
Motor cap / main housing
damaged.
See your authorized dealer for
repair.
Symptom
Possible Cause
Solution
Fluid gets too hot.
Power unit
working hard.
Circuit relief set too low.
Adjust relief valve to 2100-22500
psi / 145-155 bar.
Too much fluid going through tool. Adjust flow for 13.2 gpm / 50 lpm
maximum.
Damaged O-rings.
See your authorized dealer for
repair.
Fluid leaks at flow
control valve.
Wrong hydraulic fluid.
Circuit to hot.
See OPERATING INSTRUCTIONS
for correct fluid / circuit
specifications.
Hydraulic pressure and return
hoses reversed.
Correct hose connections.
Circuit is generating high heat with
flow controls.
Use pump size and rpm for
producing needed flow only.
Eliminate circuit heating causes.
Circuit has contaminants that have
caused wear and high heat
generation.
Replace worn pump and valves.
Install a large clean filter and keep
the fluid clean.
Oil leak at motor shaft seal into
gearbox causes high pressure in
gearbox.
See your authorized dealer for
repair.
Gearshift knob
turns hard.
Shifter pin worn or broken.
See your authorized dealer for
repair.
No gearshift
function.
Output shaft seals worn.
See your authorized dealer for
repair.
Water leaking out
of shaft seal or
side hole.
Water pressure too high. Seal
damaged.
Maximum water pressure 60 psi /
4 bar.
continued
