Check The Oil Level In The Drive Hubs And Mounting Bolt Torque; Test The Ground Control Override - Genie Z-30/20N Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-6
Check the Oil Level in the Drive
Hubs and Mounting Bolt Torque
Note: Genie specifications require that this
procedure be performed every 250 hours or
quarterly, whichever comes first.
Failure to maintain proper drive hub oil levels,
including proper drive hub fastener torque, may
cause the machine to perform poorly and
continued use may cause component damage.
1 Drive the machine to rotate the hub until one of
the plugs is located on top and the other is at
90 degrees.
a drive hub plugs
2 Remove the plug located at 90 degrees and
check the oil level.
Result: The oil level should be even with the
bottom of the side plug hole.
3 If necessary, remove the top plug and add oil
until the oil level is even with the bottom of the
side plug hole. Refer to Section 2,
Specifications .
4 Install the plugs into the drive hub.
5 Check the torque of the drive hub bolts.
Refer to Section 2, Specifications .
6 Repeat this procedure for each drive hub.
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a
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
B-7
Test the Ground Control
Override
Note: Genie specifications require that this
procedure be performed every 250 hours or
quarterly, whichever comes first.
A properly functioning ground control override is
essential to safe machine operation. The ground
control override function is intended to allow
ground personnel to operate the machine from the
ground controls whether the red Emergency Stop
button on the platform controls is in the on or off
position. This function is particularly useful if the
operator at the platform controls cannot return the
boom to the stowed position.
1 Push in the red Emergency Stop button at the
platform controls to the off position.
2 Turn the key switch to ground controls and pull
out the red Emergency Stop button to the on
position.
3 Operate each boom function through a
partial cycle at the ground controls.
Result: All boom functions should operate.
June 2011
REV B
Part No. 139378