October 2019
Service and Repair Manual
Turntable Rotation Components
Part No. 1280490GT
S
®
-80 XC
™
• S
®
-85 XC
™
•
S
®
-
80 HF • S
®
-85 HF
85
5 Clean up any oil that may have spilled.
1 motor
2 drive hub mounting bolts
3 drive hub with brake
How to Adj ust the Tur ntabl e R otati on Gear Backlash
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 boom
between the non-steer end tires and with the
machine on a firm and level surface.
1 Secure the turntable from rotating with the
turntable rotation lock pin.
Note: The turntable rotation lock pin is located next
to the boom rest pad.
2 Loosen the backlash pivot plate mounting
fasteners.
1 backlash pivot plate
2 adjustment bolt with lock nut
3 backlash pivot plate mounting bolts
Summary of Contents for Genie S-80 HF Series
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