Replace The Drive Hub Oil - Genie S-40 Service Manual

October 2013
D-4

Replace the Drive Hub Oil

Genie specifications requires that this procedure
be performed every 1000 hours or annually,
whichever comes first.
Replacing the drive hub oil is essential for good
machine performance and service life. Failure to
replace the torque hub oil at yearly intervals may
cause the machine to perform poorly and
continued use may cause component damage.
1 Select the drive hub to be serviced. Drive the
machine until one of the two plugs is at the
lowest point.
2 Remove both plugs and drain the oil into a
suitable container.
3 Drive the machine until one plug is at the top
and the other is at 90 degrees.
4 Fill the hub with oil from the top hole until the oil
level is even with the bottom of the side hole.
Refer to Section 2, Specifications.
5 Install the plugs. Use pipe thread sealant on
units with pipe plugs.
6 Repeat steps 1 through 5 for all the other drive
hubs.
models with pipe plugs
Part No. 102521
a
a drive hub plugs
S-40 • S-45
Section 3 • Scheduled Maintenance Procedures
CHECKLIST D PROCEDURES
Turntable Rotate Drive Hub:
Note: 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 Raise the secondary boom until the platform
end of the lower secondary boom arm is
approximately 8 feet / 2.4 m off the ground.
2 Secure the turntable from rotating with the
turntable rotation lock pin.
3 Tag, disconnect and plug the hydraulic hoses
from the turntable rotate drive motor. Cap the
fittings on the drive motor.
a
turntable drive hub
a
4 Attach a suitable lifting device to the lifting eyes
located near the drive motor.
plug
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