SECTION 3 - CHASSIS & TURNTABLE
3-102
3121171
3.20
PROCEDURE FOR SETTING GEAR BACKLASH
1.
Set backlash to 0.010 to 0.015" using the following pro-
cedure.
2.
Place shim (JLG PN 4071041) between pinion and bear-
ing on bearing high spot. The bearing high spot should
be stamped with an “X” on the surface below the teeth
and marked with yellow paint in the tooth space.
3.
Torque shoulder screw (shown below) to 660 ft-lb (896
Nm) with JLG Threadlocker PN 0100019.
4.
Remove turntable lock pin.
5.
Pre-torque capscrews (shown below) to 90 ft-lb (122
Nm) with JLG Threadlocker PN 0100019.
6.
Tighten setscrew (shown below) until pinion is com-
pletely snug against shim and bearing, then back off the
setscrew.
7.
Torque setscrew to 50 ft-lb (68 Nm).
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