JLG 660AJ Service Manual - Manual (Page 50)

SECTION 3 - CHASSIS & TURNTABLE
3-6 – JLG Lift – 3121616
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: Holes in Bearing Nut (1F) for Set Screws (1G) are staked for
retention of Set Screws (1G). Clean holes before removing
Set Screws.
3. Remove “A” position Bearing Cone (1C) from Bearing
Cup (1C) in Hub (1D).
4. While supporting 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 nine Studs (1H) out of Hub (1D).
Locate Hub (1D) on Seal (1B) end.
7. Remove Seal (1B) from Hub (1D). Discard seal.
8. Remove “B” position Bearing Cone (1C) from Bearing
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).
Figure 3-7. Hub Spindle Disassembly