Main Disassembly; Hub-Shaft Disassembly - JLG 660SJ Service And Maintenance Manual

SECTION 3 - CHASSIS & TURNTABLE

Main Disassembly

1. Remove Sun Gear (8) with Retaining Ring (44)
2. With unit resting on Output Shaft (Pinion) (1A), remove
Bolts (12) from Brake Housing (6).
3. Remove Brake Housing (6) from main assembly.
4. Remove O-ring (5A) from Brake Housing (6) and Ring
Gear (4).
5. Remove Thrust Washer (11) from Brake Housing (6) and
Carrier Subassembly.
6. Remove Ring Gear (4) from Housing (1G).
7. Remove O-ring (5) from Ring Gear (4) and Housing
8. Remove Carrier Subassembly.
9. Remove Thrust Washer (11) between Carrier Subassem-
bly and Internal Gear
10. Remove Internal Gear (2).
44
20
6
5A
5
11
13
1A
Figure 3-53. Main Disassembly
3-38
inside.
(2).
8
11
4
3F
2

Hub-Shaft Disassembly

WEAR EYE PROTECTION DURING THIS PROCEDURE.
11. Using retaining ring pliers, remove and discard Retaining
Ring (11) from groove in Output Shaft (1A).
12. Remove Thrust Washer (1H).
13. Support Housing (1G) on Output Shaft (1A) end. Press
Output Shaft
NOTE: Lip Seal (1B) will be pressed out of Housing (1G) by Bearing
Cone(1D) during this step.
(1G).
14. Remove Bearing Cone (IE) from Housing (IG).
15. Use a bearing puller to remove Bearing Cone (1D) from
Shaft (1A).
(1G).
NOTE: If bearing replacement is necessary, Bearing Cups (1C & 1F)
can be removed with a slide hammer puller or driven out
with a punch.
Figure 3-54. Hub-Shaft Disassembly
– JLG Lift –
(1A) out of Housing (IG).
Bearing Cups (1C & 1F) will remain in Housing
1I
1H
1E
1F
1G
1C
1D
1B
1A
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