JLG M4069 ANSI Service Manual - Manual (Page 61)

SECTION 3 - CHASSIS & SCISSOR ARMS
3121122 – JLG Lift – 3-33
Disassembly Instructions:
1. Perform the Roll Check and Leak Check, if applica-
ble prior to disassembling the unit.
2. Drain oil from the unit.
3. Remove the Coupling (1) from Spindle End first.
4. Remove the Retaining Ring (2) by prying the open
end of the Retaining Ring out of the groove in the
Ring Gear (3) 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 (4) from the unit.
The unit can be carefully pressurized with air to pop
the cover out of the unit. The Washer (5) may have
to be removed separately because of the loose
attachment.
6. Remove the First Stage Sun Gear (6) if applicable.
NOTE: On units with ratios greater than 36:1 numerically,
there will not be a separate First Stage Sun Gear (6),
as the gear teeth will be integral to the Input Shaft
(7).
7. Remove the Input Carrier Subassembly (8).
8. Remove the Second Stage Sun Gear (9).
9. Remove the Input Shaft (7).
NOTE: On units with a ratio 48:1, the Sun Gear (9) and the
Input Shaft (7) wil need to be removed together.
10. Remove the Output Stage Carrier Subassembly
(10).
11. Loosen and remove the three Flat Head Bolts (11)
that retain the Ring Gear (12) to the Housing (13).
12. Lift the Ring Gear (12) off of the Housing (13).
13. Remove the O-ring (14) from between the Housing
(13) and the Ring Gear (12).