7 - 36
Genie Z-30/20
Part No. 43063
Service Manual - Third Edition
Section 7 - Repair Procedures
TURNTABLE ROTATION COMPONENTS
4 Locate the painted mark on the outside bearing
and the dowel on the inside bearing.
5 Position the inside bearing dowel 90 degrees
counterclockwise from the painted mark on the
outside bearing.
6 Install a grease fitting on the inside bearing
and apply grease until it comes out of the
inner seal.
7 Apply grease to 10 gear teeth on each side of
the painted mark on the outside bearing.
8 Center the worm drive over the painted mark
on the outside bearing and install the two
5
/
16
inch fasteners. Hand tighten the bolts.
9 Push the worm drive towards the rotation
bearing to be as close as possible.
10 Position a dial indicator to measure the worm
drive in relation to the ring gear. Pull the worm
drive away from the rotate bearing 0.035
inches (0.889 mm) ±0.020 inches (0.508 mm).
11 Tighten the two
5
/
16
fasteners. Observe the dial
indicator to be sure that the worm drive does
not move while tightening the fasteners.
12 Locate the 1 inch hex head on the end of the
worm gear housing. Turn the hex head to
rotate the worm drive until it is positioned within
the original reference marks on the drive
chassis.
13 Position the turntable so that the flat side of the
turntable is parallel with the worm drive gear.
14 Install the turntable mounting fasteners. Use a
torque wrench to tighten the fasteners in
sequence to specifications.
Specifications - torque
First rotation
95 foot-pounds
129 Newton meters
Second rotation
190 foot-pounds
258 Newton meters
After complete assembly, the
turntable should rotate smoothly
without jerking or grinding.
16
1
3
7
10
12
13
14
22
18
4
19
5
15
23
2
21
8
11
17
24
6
20
9
