Genie Z80/60 Service Manual page 212

Section 4 • Repair Procedures
TURNTABLE ROTATION COMPONENTS
How to Adjust the Turntable
Rotation Gear Backlash
The turntable rotation drive hub is mounted on an
adjustable plate that controls the gap between the
rotation motor pinion gear and the turntable
bearing ring gear.
Note: Perform this procedure with the platform
between the circle-end tires and with the machine
on a firm, level surface.
1 Secure the turntable from rotating with the
turntable rotation lock pin.
2 Loosen the backlash pivot plate mounting
fasteners.
3 Push the backlash pivot plate towards the
turntable as far as possible (this will push the
rotation gear into the turntable bearing ring
gear).
4 Loosen the lock nut on the adjustment bolt.
5 Turn the adjustment bolt clockwise until it
contacts the backlash pivot plate.
6 Turn the adjustment bolt
counterclockwise. Tighten the lock nut on the
adjustment bolt.
4 - 110
1
/ turn
2
Z-80/60
7 Rotate the backlash pivot plate away from the
turntable until it contacts the adjustment bolt.
Torque the mounting fasteners on the backlash
pivot plate to specification. Refer to Section 2,
Specifications.
8 Rotate the turntable through an entire rotation.
Check for tight spots that could cause binding.
Readjust if necessary.
June 2011
REV B REV B
Part No. 88619