Procedure For Setting Swing Gear Backlash - JLG 400S Service And Maintenance Manual

SECTION 3 - CHASSIS & TURNTABLE
10. Install the rotary coupling mount bracket, apply a light
coating of JLG Threadlocker P/N 0100011 to the attach-
ing bolts and secure the mount bracket to the turntable
with the mounting hardware.
11. Connect the hydraulic lines, electrical harness and
remote grease fitting line (if equipped) to the rotary
coupling as tagged prior to removal.
12. At ground control station, use boom lift control to lower
boom to stowed position.
13. Using all applicable safety precautions, activate the
hydraulic system and check the swing system for proper
and safe operation.

Procedure for Setting Swing Gear Backlash

1. Set swing gear backlash to 0.005 - 0.010 in. (0.127 -
0.254 mm) using the following procedure.
2. Place the shim (JLG P/N 1001190964) between the pin-
ion and the bearing on the high spot.
NOTE: The high spot will be marked with yellow paint.
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3. Apply JLG Threadlocker (P/N 0100019) to the pivot bolt
and torque to 205 ft. lbs. (280 Nm).
4. Remove the turntable lock pin.
5. Apply JLG Threadlocker (P/N 0100019) to the remaining
swing drive mounting bolts and torque them to
30 ft. lbs. (40 Nm).
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