SECTION 3 - CHASSIS & TURNTABLE
3-52
– JLG Lift –
3120740
3.12
PROCEDURE FOR SETTING SWING GEAR
BACKLASH
Set backlash to 0.008 in. to 0.012 in. (0.2 mm - 0.3 mm) using
the following procedure:
1.
Place the machine on firm, level ground.
2.
Place shim between pinion and bearing at bearing high
spot.
3.
Apply JLG Threadlocker P/N 0100019 and torque shoul-
der screw to 420 ft. lbs. (569 Nm).
NOTE:
Make sure the turntable is properly supported during the
following step. The turntable can swing a few degrees
when the turntable lock is removed if the turntable is not
balanced properly.
4.
Remove turntable lock pin.
5.
Apply JLG Threadlocker P/N 0100019 and pre-torque
bolt to 30 ft. lbs. (42 Nm).
6.
Tighten setscrew until pinion is completely snug against
shim and bearing then back off setscrew.
7.
Apply JLG Threadlocker P/N 0100019 and torque set-
screw 50 ft. lbs. (67.5 Nm) (w/JLG Threadlocker P/N
0100019).
8.
Apply JLG Threadlocker P/N 0100019 and tighten jam
nut.
9.
Torque the bolt to 420 ft. lbs. (569 Nm).
HIGH SPOT
marked with yellow paint
HIGH SPOT in this area with
two x's and yellow paint in
tooth space.
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