TM 9-2330-235-14&P
4-56.
LEVELING JACK REPAIR (M390C) (Con't).
c.
ASSEMBLY
1. Install shoe (25) and retainer (26) on inner tube (24) with new locknut (27).
2. Install new headless pin (28) in screw (21).
3. Coat screw (21) with grease.
4. Install nut (20) onto screw (21). Leave nut halfway up screw.
5. Install screw (21) and nut (20) in inner tube (24). Secure nut to inner tube with two new headless pins (23).
6. Install new seal (29) in housing (30).
7. Coat outside of inner tube (24) with lubricating oil. Slide inner tube into housing (30) so that screw (21) protrudes
from top of housing.
8. Install collar (31) and bevel gear (7) over screw (21). Secure bevel gear to screw with new headless pin (22).
Hold shoe (25) and carefully pull screw and bevel gear down into housing (30).
9. Install spring (10) and latch (12) in pinion gear (8) with new spring pin (11).
10. Install thrust washer (9) on pinion gear (8).
11. Coat pinion gear (8) and bevel gear (7) with grease.
12. Compress latch (12) and install pinion gear (8) in housing (30). Ensure that pinion gear meshes with bevel gear
(7).
13. Install bearing (6) on bevel gear (7) with large diameter end facing bevel gear.
14. Install cover (1) on housing (30) with four new lockwashers (2) and screws (3).
15. Install new lubrication fitting (4) in cover (1). Install new lubrication fitting (14) in housing (30).
16. Apply sealing compound to cover (18). Install new seal (19), key (16), and access cover on housing (30) with two
screws (17).
17. Using handcrank, fully retract leveling jack.
FOLLOW-ON TASKS:
Lubricate leveling jack (Chapter 3, Section I).
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