JLG 660SJ Service Manual - Manual (Page 91)

SECTION 3 - CHASSIS & TURNTABLE
3121298 – JLG Lift – 3-47
6. Following Torque Sequence diagram shown in Figure 3-
64., Swing Bearing Torque Sequence, torque bolts to 190
ft-lb (258 Nm) w/Loctite.
7. Remove lifting equipment.
8. Install rotary coupling retaining yoke brackets. Apply a
light coating of Thread Locking Compound, JLG P/N
0100011 to attaching bolts. Secure yoke to turntable
with mounting hardware.
9. Connect hydraulic lines to rotary coupling as tagged
prior to removal.
10. At ground control station, use boom lift control to lower
boom to stowed position.
11. Using all applicable safety precautions, activate hydrau-
lic system and check swing system for proper and safe
operation.
Swing Bearing Torque Values
1. Outer Race - 190 ft-lb (258 Nm) w/Loctite.
2. Inner Race - 190 ft-lb (258 Nm) w/Loctite.
3. See Figure 3-64. Swing Bearing Torque Sequence.
CHECK OR MISSING OR LOOSE INNER AND OUTER SWING BEARING BOLTS
AFTER FIRST 50 HOURS OF OPERATION AND EVERY 600 HOURS THEREAFTER.






 






 



















Figure 3-64. Swing Bearing Torque Sequence