Operating faults
Troubleshooting possible faults
2007-9015-001
03-2014
Symptom
Remedy
Possible cause
Loss of output pressure at
the pump.
Leak in the discharge line to the
pressure filter.
Repair or replace the defective
part.
Worn pump.
Replace the pump.
Unusually short pump
service life.
Fluid and/or filters not serviced
at the proper intervals.
Perform a fluid and filter change.
Wrong fluid type or viscosity.
See fluid specifications
Refer to section on Scheduled
Maintenances responsibilities
System operated with burnt, old,
or contaminated fluid.
Determine and eliminate the
sources of contaminated fluid.
Never use used fluid or fluid
from dirty, unknown, or open
containers.
Pump cavitating.
See symptom Pump cavitating
Pump not delivering
enough fluid volume or no
fluid flow.
Low fluid level in the reservoir.
Top off the fluid level and check
the system for leaks.
Fluid viscosity is too low.
See fluid specifications
Refer to section on Scheduled
Maintenances responsibilities
Pump not delivering
enough fluid volume or no
fluid flow.
Fluid has thinned out from
operating at too high of a
temperature.
Perform a fluid and filter change.
Pump suction hose restricted or
collapsed.
Repair or replace the hose.
