Genie S-80, Service Manual

Page: 87 / 353

Part No. 122985 S-80 • S-85 • S-80X 3 - 57
Section 3 • Scheduled Maintenance Procedures February 2012
E-1
Test or Replace the
Hydraulic Oil
Genie specifications require that this procedure be
performed every 2000 hours or every 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 frequently.
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: Perform this procedure with the boom in the
stowed position.
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 Remove the fuel tank. Refer to Repair
Procedure 9-1, How to Remove the Fuel Tank.
open closed
Checklist E Procedures
2 Models without hydraulic tank shutoff valves:
Remove the drain plug from the hydraulic tank
and completely drain the tank into a suitable
container. Refer to Section 2,
Specifications.
Models with hydraulic tank shutoff valves:
Close the two hydraulic tank valves located at
the hydraulic tank.
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.
3 Remove the drain plug from the hydraulic tank
and completely drain the tank into a suitable
container. Refer to Section 2,
Specifications.
4 Tag, disconnect and plug the two suction hoses
that are attached to the hydraulic tank
shutoff valves.
5 Disconnect and plug the T-fitting located at the
return filter with the two hoses connected to it.
Cap the fitting on the return filter housing.
6 Disconnect and plug the supply hose for the
auxiliary power unit. Cap the fitting on the
hydraulic tank.