Inspect For Turntable Bearing Wear - Genie Z-30/20N Service Manual

Service Manual
Checklist D Procedures
6 Install the new oil filter element into the filter
housing.
7 Push the filter element down to be sure the
o-ring on the element is fully seated into the
housing.
8 Rotate the filter element clockwise to lock it in
place.
9 Install the filter housing cap.
10 Clean up any oil that may have spilled during
the replacement procedure.
11 Use a permanent ink marker to write the date
and number of hours from the hour meter on
the oil filter housing.
12 Turn the key switch to ground controls and pull
out the red Emergency Stop button to the on
position.
13 Move and hold the function enable toggle
switch to either side and move and hold the
primary boom toggle switch in the up direction.
14 Inspect the filter housing and related
components to be sure that there are no leaks.
D-6
Inspect for Turntable Bearing
Wear
Genie specifications require that this procedure be
performed every 1000 hours or annually,
whichever comes first.
Periodic inspection of turntable bearing wear is
essential to safe machine operation, good machine
performance and service life. Continued use of a
worn turntable bearing could create an unsafe
operating condition, resulting in death or serious
injury and component damage.
Note: Perform this procedure with the machine on
a firm, level surface with the boom in the stowed
position.
1 Grease the turntable bearing. Refer to
Maintenance Procedure, Grease the
Turntable Bearing and Rotate Gear.
40
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
2 Torque the turntable bearing bolts to
specification. Refer to Maintenance
Procedure, Check the Turntable Rotation
Bearing Bolts.
3 Raise the primary and secondary booms to full
height using the ground controls. Do not
extend the primary boom.
4 Place a dial indicator between the drive
chassis and the turntable at a point that is
directly under, or inline with, the boom and no
more than 1 inch / 2.5 cm from the bearing.
Note: To obtain an accurate measurement, place
the dial indicator no more than 1 inch / 2.5 cm from
the turntable rotation bearing.
1 turntable
2 dial indicator
3 drive chassis
4 turntable rotation bearing
5 Adjust the dial indicator needle to the "zero"
position.
6 Lower the secondary boom to the stowed
position and lower the primary boom to a
horizontal position. Fully extend the primary
boom.
April 2016
Part No. 139378