JLG E450A, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
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Main Disassembly
NOTE: Refer to Figure 3-11., Main Assembly - Sheet 1 of 2 and Fig-
ure 3-12., Main Assembly - Sheet 2 of 2.
1. Perform Roll Check and Leak Check if applicable prior to
disassembling the unit.
2. Drain oil from unit. Note the condition and volume of
the oil.
3. Remove Coupling (7) from Spindle End first.
4. Remove Retaining Ring (6G) by prying the open end of
Retaining Ring out of the groove in the Ring Gear (1F)
with a screwdriver, then grasp the loose end with pliers
and pull the Retaining Ring completely out of the
groove.
5. Remove the Cover Subassembly (6) from the unit. The
unit can be carefully pressurized with air to pop the
cover out of the unit. Washer (2) may have to be
removed separately because of the loose attachment.
6. 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).
7. Remove the Input Carrier Sub-assembly (3).
8. Remove the Second Stage Sun Gear (11).
9. Remove the Input Shaft (9).
NOTE: On units with a ratio 48:1, the Sun Gear (11) and the Input
Shaft (9) will need to be removed together.
10. Remove the Output Stage Carrier Sub-assembly (4).
11. Loosen and remove the three Flat Head Bolts (19) that
retain the Ring Gear (1F) to the Housing (1G).
12. Lift the Ring Gear (1F) off of the Housing (1G).
13. Remove the O-Ring (18) from between the Housing (1G)
and the Ring Gear (1F).
)
*
*
1F. Ring Gear
1G. Housing
2. Washer
3. Input carrier Subassembly
4. Output carrier Subassembly
6. Cover Assembly
6G. Retaining Ring 7. Coupling
9. Input Shaft
10. First Stage Sun Gear
11. Second Stage Sun Gear
15. I.D. Plate
18. O-ring
19. Flat Head Bolt
Figure 3-11. Main Assembly - Sheet 1 of 2