JLG 600SC_660SJC Service Manual - Manual (Page 158)

SECTION 6 - UNDERCARRIAGE
6-54 – JLG Lift – 3120898
28. Install sun gear (21) into planetary carrier (19).
29. If necessary, heat planetary gears (18) to 275° F
(135° C). Install three planetary gears (18) on the
planetary carrier. Use snap ring pliers to install three
snap rings (17) that secure three planetary gears
(18) to the planetary carrier.
30. Install the first stage of planetary gear assembly (16)
into the final drive.
31. Install sun gear shaft (15) into the final drive.
32. Install a new O-ring seal into cover (14). Install
twelve bolts (13) that secure cover (14) to the final
drive. Tighten twelve bolts (13) to a torque of 25 ±
6Nm(18 ± 4 ft.lbs.).
33. Use lifting straps and Tooling (D) in order to lift the
final drive off tooling (A).
34. Carefully rotate the final drive so that the brake is up.
35. Fasten the final drive to tooling (A).
36. Install seals (12) into piston (5).
37. Install seal (10) into spindle (11).