JLG 4394RT Service Manual - Manual (Page 49)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3121249 – JLG Lift – 3-13
13. Assembly of planet gear (Main Stage):
a. Mount the planet gears with Bearing Assembly
(1, 10), heated to approximately 189.5° F (70° C),
onto the planet bolts of the Spindle (34) and
secure the gears with new Snap Rings (13).
14. Install the Ring Gear (22).
15. Install the ring gear hex head bolts. Tighten bolts to
proper torque of 15.5 lb-ft (21 Nm).
16. Install completely pre-assembled 1 st planet stage
into the gear drive.
17. Install Sun Gear Shaft (25).
18. Check axial clearance:
a. Determine clearance between contact face of
Sun Gear (3) and Sun Gear Shaft (25). (Recom-
mended clearance 1.0 -1.5mm)
19. Carefully insert a new greased O-ring (23) into the o-
ring groove of Ring Gear (22).