Test Or Replace The Hydraulic Oil - Genie S-100 Service Manual

January 2010
REV C
E-1

Test or Replace the Hydraulic Oil

Genie specifications require that
this procedure be performed every
2000 hours or 2 years, whichever
comes first.
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil and suction strainers may
cause the machine to perform poorly and continued
use may cause component damage. Extremely
dirty conditions may require oil changes to be
performed more frequently.
Before replacing the hydraulic oil,
the oil may be tested by an oil
distributor for specific levels of
contamination to verify that
changing the oil is necessary. If
the hydraulic oil is not replaced
at the two year inspection, test
the oil quarterly. Replace the oil
when it fails the test.
Perform this procedure with the
boom in the stowed position and
the axles extended.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2, Hydraulic Hose
and Fitting Torque Specifications.
1 Remove the ground controls side turntable side
cover. Refer to Repair Section 5-1, How to
Remove a Hinged Turntable Cover.
Part No. 62401
Section 4 • Scheduled Maintenance Procedures
Checklist E Procedures
2 Close the two hydraulic shut-off valves located
at the hydraulic tank.
3 Remove the drain plug from the hydraulic tank
and allow all of the oil from the tank to drain into
a suitable container. Refer to Section 2,
Specifications.
4 Remove the ground controls support bracket
retaining fasteners and remove the ground
control box assembly from the machine.
5 Tag and disconnect the wires from the horn.
Remove the horn retaining fasteners and
remove the horn from the machine.
6 Tag, disconnect and plug the two suction hoses
that are attached to the hydraulic tank shut-off
valves. Cap the fittings.
7 Tag, disconnect and plug the supply hose for
the auxiliary power unit. Cap the fitting on the
hydraulic tank.
8 Tag, disconnect and plug the case drain hose at
the return filter. Cap the fitting on the return filter
head.
S-100 & S-105 & S-120 & S-125
open closed
Component damage hazard. The
engine must not be started with the
hydraulic tank shutoff valves in the
closed position or component
damage will occur. If the tank
valves are closed, remove the key
from the key switch and tag the
machine to inform personnel of the
condition.
Component damage hazard.
Be sure to properly support the
ground control box. Do not allow
the ground control box to hang by
the wiring or cables.
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