JLG 600SC_660SJC Service Manual - Manual (Page 48)

SECTION 3 - GRADALL CHASSIS
3-4 – JLG Lift – 3121157
12. Repeat process to opposite side:
13. Assemble fitting and fitting seal into the end of each
shock assembly. Torque to chart specifications.
14. Assemble shock assembly into position. Secure with
bolts, washers, and loctite. Torque to 65 ft-lbs, +10-
0 (91 Nm, +15 -0).
15. Repeat process to the opposite side.
16. Using an adequate lifting device, lift & turn over the
frame. Position the left and right frame sides on ply-
wood and idler ends on 4 x 4 blocks.
17. Using an adequate lifting device, pick up spring
assembly upright onto idler assembly. Install using
bolts, washers, and loctite. Torque to 165 ft-lbs
(+15-0 (231 Nm, +21 -0). (Repeat for the other idler
assembly.)
18. Repeat process for opposite side.
1. Counterweight
2. Cover Plate
3. Drive Assembly
4. Bottom Track Roller 5. Carrier Track Roller
6. Track Assembly
7. Drive Sprocket
8. Frame 9. Idler Assembly
10. Spring Assembly
11. Shock Assembly
Figure 3-3. Chassis Components