JLG 660SJ Service Manual - Manual (Page 58)

SECTION 3 - CHASSIS & TURNTABLE
3-8 – JLG Lift – 3121202
Hub-Spindle Disassembly
1. Place unit on bench with Spindle (1A) end down.
2. Remove 2 Set Screws (1G) and Bearing Nut (1F)
using T-206569.
NOTE: The holes in the Bearing Nut (1F) for the Set Screws
(1G) were staked for retention of the Set Screws
(1G). The holes will need to be cleaned up prior to
removing the Set Screws.
3. Remove “A” position Bearing Cone (1C) from Bear-
ing Cup (1C) in Hub (1D).
4. While supporting the unit on Hub (1D) flange, press
Spindle (1A) out of Hub (1D).
5. Lift Hub (1D) off of Spindle (1A). Remove Boot Seal
(1Q) from Hub (1D) if applicable.
6. If necessary, press 9 Studs (1H) out of Hub (1D).
Locate Hub (1D) on Seal (1B) end.
7. Remove Seal (1B) from Hub (1D).
NOTE: The Seal (1B) should NOT be reused when reas-
sembling the unit.
8. Remove “B” position Bearing Cone (1C) from Bear-
ing Cup (1C) in Hub (1D).
9. Remove “B” position Bearing Cone (1C) from Hub
(1D).
10. Using a soft steel rod, knock both Bearing Cups
(1C) out of Hub (1D).
1A. Barrel
1B. Seal
1C. Bearing Cone
1D. Hub 1F. Bearing Nut
1G. Setscrew
1H. Stud
1Q. Boot Seal
Figure 3-6. Hub Spindle