JLG 340AJ, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
3121259 – JLG Lift – 3-13
15. Repeat Steps 12 though 14 for the remaining two Planet
Gears Subassemblies (4F).
16. Remove the Thrust Washer (4H) from the counterbore in
the Spindle (1 A).
17. Remove the Input Shaft (9).
Housing-Spindle Disassembly
1. Secure the unit in a fixture with Spindle (1 A) flange end
down.
2. Remove the Set Screws (1G) from Bearing Nut (1F). Then
loosen the Bearing Nut (1F) using the Bearing Nut
Wrench. It may be necessary to heat the Bearing Nut (1F)
to break down the Loctite that was used to secure the
bearing nut on to the Spindle (1 A).
NOTE: The holes in the bearing nut for the set screws were staked
for retention of the set screws. The holes will need to be
cleaned up prior to removing the set screws.
3. While supporting the unit on Housing (1D) flange, press
Spindle (1 A) out of housing.
4. Lift Housing (1D) off of Spindle (1 A).
5. If necessary, press Studs (1H) out of Housing (1D).
6. Remove Lip Seal (1B) from Housing (1D).
NOTE: The lip seal should NOT be reused when reassembling the
unit.
7. Using a soft steel rod, carefully knock both Ball Bearings
(1C) out of Housing (1D).
Figure 3-9. Main Disassembly - Figure 3
4B. Thrust Washer
4C. Needle Bearing
4D. Thrust Spacer
4F. Planet Gear