TM 9-2330-235-14&P
4-56.
LEVELING JACK REPAIR (M390C) (Con't).
3. Remove bearing (6) from bevel gear (7).
4. Press in on latch (12) and remove pinion gear (8) from housing (30). Remove thrust washer (9) from pinion gear.
5. Remove spring pin (11 ) from pinion gear (8). Remove latch (12) and spring (10) from pinion gear. Discard spring
pin.
6. Gently press down on housing (30) until headless pin (22) can be removed from bevel gear (7) and screw (21).
Remove and discard headless pin.
7. Remove bevel gear (7) and collar (31) from screw (21).
8. Remove two screws (17), access cover (18), key (16), and seal (19) from housing (30). Discard seal.
9. Hold shoe (25) and pull screw (21) and inner tube (24) out of housing (30).
10. Remove two headless pins (23) securing nut (20) to inner tube (24). Remove nut and screw (21) from inner tube.
Discard headless pins.
11. Remove headless pin (28) and nut (20) from screw (21). Discard headless pin.
12. Remove locknut (27), retainer (26), and shoe (25) from inner tube (24). Discard locknut.
13. Remove seal (29) from inside housing (30). Discard seal.
14. Remove lubrication fitting (4) from cover (1). Remove lubrication fitting (14) from housing (30). Discard lubrication
fittings.
b.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective goggles and gloves, and
use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes, and DO NOT breathe
vapors. DO NOT use near open flame or excessive heat. The solvent's flash point is 100F-138F (38C-
590C). If you become dizzy while using cleaning solvent, immediately get fresh air and medical help. If
solvent contacts eyes, immediately wash your eyes and get medical aid.
1. Clean all parts with dry cleaning solvent and dry thoroughly.
2 Clean and inspect bearing in accordance with TM 9-214. If damaged, bearing cup (5) in cover must also be
replaced.
3. Inspect sleeve bearing (13) in housing for damage. If damaged, remove pin (15) and press out sleeve bearing
Press in new sleeve bearing and secure with new pin.
4. Inspect bevel gear and pinion gear for cracked or broken teeth. Small nicks can be smoothed or removed with a
fine mill file If teeth are cracked or broken, replace gears as a set.
5. Inspect screw for broken or stripped threads. Small nicks can be removed or smoothed with a fine mill file If
threads are broken or stripped, replace screw.
6. Inspect all parts for cracks, breaks, corrosion, or other damage. Replace all damaged parts.
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