JLG 660SJ Service Manual - Manual (Page 55)

SECTION 3 - CHASSIS & TURNTABLE
3121202 – JLG Lift – 3-5
5. Remove the First Stage Sun Gear (10) if applicable.
NOTE: On units with ratios greater than 36:1 numerically,
there will not be a separate First Stage Sun Gear
(10), as the gear teeth will be integral to the Input
Shaft (9).
6. Remove the Input Carrier Subassembly (3).
7. Remove the Input Shaft (9).
8. Remove the Second Stage Sun Gear (11).
NOTE: On units with a ratio 48:1, the Sun Gear (11) and the
Input Shaft (9) will need to be removed together.
9. Loosen and remove the three Flat Head Bolts (19)
that retain the Ring Gear (1E) to the Housing (1G).
10. Lift the Ring Gear (1E) off of the Housing (1D).
11. Remove the O-ring (18) from between the Housing
(1D) and the Ring Gear (1E).
12. Using a 1/8” diameter punch, drive the Roll Pin (4G)
into the Planet Shaft (4E) until it bottoms against the
Spindle (1A).
13. Grasp the Roll Pin (4G) using needle nosed pliers or
some sort of hooked tool, and pull the Planet Shaft
(4E) out of the Spindle (1A).
14. Using a 1/8” diameter punch, drive the Roll Pin (4G)
out of the Planet Shaft (4E).
NOTE: The Roll Pins (4G) should not be reused when reas-
sembling the unit.
1A. Spindle
1D. Housing
1E. Ring Gear
3. Input Carrier 4. Planet Gear
4E. Planet Shaft
4G. Roll Pin
4H. Thrust Washer
5. Retaining Ring
9. Input Shaft
10. First Stage Sun Gear
11. Second Stage Sun
Gear
18. O-ring
19. Bolt
20. Retaining Ring
Figure 3-2. Input Carrier