JLG 680S Service Manual - Manual (Page 138)

SECTION 3 - CHASSIS & TURNTABLE
3-90 – JLG Lift – 3121234
3. Apply Loctite #271 to the shoulder screw (shown
below) and torque to 420 foot-pounds (569 Nm.
4. Remove the turntable lock pin.
5. Apply Loctite #271 to the capscrews (shown below)
and pre-torque to 30 foot-pounds (42 Nm.
6. Tighten the setscrew (shown below) until the pinion
is completely snug against the shim and bearing
and then back off the setscrew.
7. Apply Loctite #271 to the setscrew and torque to 50
foot-pounds (68 Nm).
8. Apply Loctite #271 to the jam nut (shown below)
and tighten.
9. Torque the capscrews shown in step 5 to 420 foot-
pounds (569 Nm).
10. Remove shim and discard.