Checklist E Procedures; Test Or Replace The Hydraulic Oil - Genie GS-2669 RT Service Manual

Section 3 • Scheduled Maintenance Procedures

Checklist E Procedures

E-1

Test or Replace the Hydraulic Oil

Genie requires that this procedure be performed
every 2000 hours or two 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 often.
Note: 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.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or the
hose end must be replaced. All connections must
be torqued to specification during installation.
Refer to Section 2, Hydraulic Hose and Fitting
torque Specifications.
1 Push in the red Emergency Stop button to the
off position.
2 Tag and disconnect the harnesses from the
ground control box.
3 - 38 GS-2669 RT • GS-3369 RT • GS-4069 RT
3 Remove the ground control box retaining
fasteners and set aside. Remove the ground
control box.
4 Locate the tank cover plate. Remove the tank
cover plate mounting fasteners and remove the
cover.
5 Place a drain pan or other suitable container
under the hydraulic tank. Refer to Section 2,
Specifications .
6 Remove the drain plug from the hydraulic tank
and completely drain the tank.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
7 Tag, disconnect and plug the suction hose from
the hydraulic tank. Cap the fitting.
8 Tag, disconnect and plug the return hose at the
return filter. Cap the fitting on the filter.
9 Remove the return filter and head assembly
from the tank. Cap and plug the fittings.
10 Loosen the tank strap retaining fastener in front
of the tank. Move the strap to the side.
11 Remove the hydraulic tank from the machine.
12 Remove the suction strainer and clean using a
mild solvent or replace.
November 2014
Part No. 229753