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

Section 3 • Scheduled Maintenance Procedures
CHECKLIST D PROCEDURES
11 Manually rotate each steer wheel.
Result: Each steer wheel should rotate with
minimum effort.
12 Re-engage the drive hubs by turning over
the hub disconnect caps. Rotate each wheel to
check for engagement. Raise the machine and
remove the jack stands.
Collision hazard. Failure to
re-engage the drive hubs may
cause death or serious injury and
property damage.
All Models:
13 Be sure the free-wheel valve on the drive pump
is closed (clockwise).
The free-wheel valve is located on
the bottom of the drive pump.
The free-wheel valve should
always remain closed.
3 - 42
D-4

Replace the Drive Hub Oil

Replacing the drive hub oil is essential for good
machine performance and service life. Failure to
replace the drive 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. Then drive
the machine until one of the two plugs is at the
lowest point.
2 Remove both plugs and drain the oil.
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.
Install the plugs into the drive hub.
5 Repeat steps 1 through 4 for all the other drive
hubs.
Genie S-40 and Genie S-45
January 2005
a drive hub plugs
Part No. 102521
REV A
a