Checklist E Procedures; Test Or Replace The Hydraulic Oil - Genie Z80/60 Service Manual

June 2011
REV D
E-1

Test or Replace the Hydraulic Oil

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: Perform this procedure with the boom in the
stowed position.
1 GM, Ford and Continental models: Turn the
valve on the LPG tank clockwise to the off
position
(if equipped). Then slowly disconnect the hose
from the LPG tank.
2 GM, Ford and Continental models: Open the
clamps from the LPG tank straps and remove
the LPG tank from the machine (if equipped).
3 Models with hydraulic tank shut-off valves:
Locate the two hydraulic tank valves at the
hydraulic tank through the access hole
underneath the turntable. Close the valves.
4 Place a suitable container underneath the
hydraulic tank.
Part No. 88619
Section 3 • Scheduled Maintenance Procedures

Checklist E Procedures

5 Remove the drain plug from the hydraulic tank
and completely drain the tank into a suitable
container. Refer to Section 2, Specifications .
6 Tag, disconnect and plug the two suction hoses
and supply hose for the auxiliary pump from the
hydraulic tank. Cap the fittings on the tank.
Note: The hoses can be accessed through the
access hole under the turntable.
7 Tag, disconnect and plug the return filter
hydraulic hose at the return filter. Cap the fitting
on the filter housing.
8 Remove the ground controls side turntable
cover.
9 Support the hydraulic tank with an appropriate
lifting device.
10 Remove the hydraulic tank mounting fasteners.
11 Remove the hydraulic tank from the machine.
12 Remove the hydraulic return filter housing
mounting fasteners. Remove the hydraulic
return filter housing from the hydraulic tank.
13 Remove the suction strainers from the tank and
clean them using a mild solvent.
14 Rinse out the inside of the tank using a mild
solvent.
Z-80/60
Crushing hazard. The hydraulic
tank could become unbalanced
and fall if not properly supported
when removed from the machine.
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