Procedures For Warranty Consideration
in fluid of a hydraulic system is the primary cause of failure.
Before intalling new major components, the system must be completely
free of contamination. Changing the filter element and fluid is
not enough to thoroughly clean the sytem. For this reason we have
derived the following list of procedures that when followed step-by-step,
will help to insure system cleanliness resulting in longer hydraulic
Is What You Do After Determining that the Hydraulic Component Needs
to be Replaced:
(Remember: Keep It Clean)
the hydraulic fluid from the lowest level in the system.
the old hydraulic pumps and/or motors to be remanufactured.
the filter elements.
all suction hoses for kinks, collapsed or flaking liners, or any
other obstructions. Inspect all other hoses and fittings in the
related system and replace as required.
the inside of the hydraulic reservoir for contamination (particles
of steel or brass, sludge, dirt, etc.) and be sure that there
are no obstructions in the suction or return system components.
and blow out all hoses in the circuit, pipes, tubing, filter housings
and reservoir with solvents to remove any contamination.
flush the oil cooler to remove contaminants.
out the inside of the hydraulic reservoir with a clean lint-free
Clean all pump and motor fittings to be replaced and install new
"O-Rings" as required.
all filter elements, gaskets, and seals as required.
all hoses and fittings capped after cleaning to prevent contamination
from entering the sytem.
all pumps and motors (on replacement motors, apply a thin coat
of lubricant to motor shaft.
hydraulic reservoir, hydraulic pump and motor cases, hoses, lines,
etc. with new, clean pre-filtered fluid. Insure that fluids meet
the specifications as shown in your operators manual.
sure to fill the pump and motor cases before start-up. Begin
the start-up procedure.
all hydraulic functions, including stroking all cylinders, to
insure that any contamination possibly left in the system flows
through the new filtration media prior to putting the machine
back in service.