JLG 660SJ Service Manual - Manual (Page 56)

SECTION 3 - CHASSIS & TURNTABLE
3-12 – JLG Lift – 3121298
Output Planet Gear Assembly
1. Apply a liberal coat of grease to the bore of one Output
Planet Gear (4F).
2. Line inside of Planet Gear (4F) with 14 Needle Rollers
(4C).
NOTE: Last roller installed must be installed end wise. That is, the
end of the last roller must be placed in between the ends of
the two rollers which form the space, and then slid, parallel
to the other rollers, into place.
3. Place Spacer (4D) in bore of Output Planet (4F).
4. Repeat Step 2 to put in second roll of Needle Rollers (4C).
5. Apply grease to hold two Thrust Washers (4B) together
and on Output Planet Gear (4F) counterbore. Repeat on
other side.
6. Repeat Steps 1-5 for remaining Output Planet Gears (4F).
7. Place Thrust Washer (4H) in counterbore of Spindle (1A).
8. Place Planet Gear Subassembly (4) in Spindle (1A)
through gap between two Studs (1H). Align planet gear
bore with one of the planet shaft holes on spindle (1A)
assembly using special tool T-209919.
INSERT END OF PLANET SHAFT THAT DOES NOT HAVE ROLL PIN HOLE IN SPIN-
DLE FIRST.
9. Insert Planet Shaft (4E) in Spindle (1A) through first set of
Thrust Washers (4B), Planet gear, and second set of
Washers (4B).
10. Use an alignment punch or similar tool to align roll pin
holes on Spindle (1A) and Planet Shaft (4E).
DO NOT HIT PLANET GEARS (4F) WHEN DRIVING IN ROLL PINS (4G).
11. Drive new Roll Pin (4G) in aligned roll pin holes. Pin
should be flush with OD of spindle.
12. Repeat Steps (11-14) for remaining Planet Gears (4F).
Figure 3-13. Output Planet Gear Assembly
4H
4B
4C
4F
4D
4B
4G
4E
1A