JLG 680S, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
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NOTE: Torque shoulder bolt against turntable baseplate. Shoul-
der bolt will not tighten against the swing drive mounting
plates.
4. Remove turntable lock pin.
5. Apply JLG Threadlocker P/N 0100019 and pre-torque
swing drive mounting bolts to 30 ft. lbs. (42 Nm).
6. Tighten the setscrew until the pinion is completely snug
against the shim and bearing and then back off the set-
screw.
7. Apply JLG Threadlocker P/N 0100019 and torque set-
screw 50 ft. lbs. (68 Nm).
8. Apply JLG Threadlocker P/N 0100019 to the jam nut and
tighten.
9. Torque the bolts to 340 ft. lbs. (461 Nm).
10. Remove shim and discard.
Swing Drive Lubrication
Fill Swing Drive Gearbox with 43 oz (1.27 L) 90w80gear oil with
EP additives. Oil should cover the ring gear. Torque pipe plug
to 23-25 ft. lbs. (31- 33 Nm).
SETSCREW
JAM NUT
FILL PLUG
DRAIN PLUG