JLG 110HX Service Manual - Manual (Page 95)

SECTION 2 - PROCEDURES
3120864 – JLG Lift – 2-71
6. Remove stack assembly, consisting of discs (23),
return plate (8) and friction discs (22) from housing
(7).
7. Remove dowel pins (17), springs (5 & 6) from hous-
ing (7).
8. Remove retaining ring (3) from housing (7).
9. Remove shaft by pressing or using a soft mallet on
male end of shaft (4).
10. Remove retaining ring (15) bearing (2) from shaft
(4).
11. Press rotary seal (1) from housing (7).
Inspection
1. Clean all parts thoroughly.
2. Closely inspect all parts for excessive wear, cracks
and chips. Replace parts as necessary.
3. Discard seals and o-rings.
4. Closely inspect bearings and bearing contact sur-
faces. Replace as necessary.
NOTE: Bearings may be reused if, after thorough inspection,
they are inspection, they are found to be in good
condition.
Assembly
NOTE: Lubricate all seals and o-rings with clean hydraulic
oil prior to assembly.
1. Press new rotary seal (1) into housing (7). Note the
direction of seal.
2. Install new bearing (2) on shaft (4).
3. Install shaft assembly and retaining ring (3) into
housing (7).
4. Install dowel pins (17), spring retainer (16), and
springs (5 & 6) into housing (7).
NOTE: Be sure to use the same number of springs and
spring pattern as recorded during disassembly as
shown below.
5. Position new large diameter return plate (8) in hous-
ing with tabs guided by dowel pins (17) until disc
rests on springs (5 & 6).
NOTE: Discs (8 & 23) and friction discs (22) should remain
dry during installation. No oil contaminate disc sur-
faces.
6. Place new disc (22) on shaft (4) until it contacts
return plate (8).
7. Add additional discs (23) as required to complete
assembly.
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Figure 2-28. Spring Loading