JLG 4394RT Service Manual - Manual (Page 46)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3-10 – JLG Lift – 3121249
12. Remove the Support Ring (6) from the Spindle (34).
Components stay in Supporting Ring (6).
13. Remove Radial Shaft Seal Ring (17).
14. Disassembly of planet gears and sun gear (1 st
stage).
a. Remove Snap Rings (12) and pull out Planet
Gears (2).
b. Remove Support Disks (15).
c. Remove Snap Ring (14) and lift off Planet Carrier
(7).
15. Repair deformed threads on the Spindle (34) in the
area of the ball detend with a thread file of 1.5mm
pitch.
Gearbox Assembly
NOTE: Clean all parts before assembling the gearbox.
1. Make sure during assembly of the preassembled
planet gears that the larger radius on the bearing
bore is oriented towards the planet carrier.
2. Assembly of planet gears and sun gear (1 st Stage).
a. Fasten the Sun Gear (3) with a new Snap Ring
(14) to the Planet Carrier (7).
b. Mount the Support Disks (15) and the planet
gears with Bearing Assembly (2, 10) heated to
approximately 189.5° F (70° C) onto the planet
bolts.