Cleaning and inspection - TM-9-2330-380-14-P0235

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Section III. SUSPENSION SYSTEM MAINTENANCE PROCEDURES

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TM-9-2330-380-14-P Semitrailer Van: Electronic Tactical 12-Ton 4-Wheel XM1063 (NSN 2330-01-224-9244) and M129A4 (NSN 2330-01-372-5642) Manual

Sleeve Bushing

TM 9-2330-380-14&P

5-7. Spring (cont'd)

7. Remove two nuts (6) and washers (5) from each trunnion U-bolt (4). Remove lower hub (7).

Lift up

U-bolts (4) and remove wear plate (13).

8. Lift up spring ends and slide out spring (12).

9. To remove trunnion U-bolts (4), rotate trunnion hub to side and remove U-bolts.

b. Cleaning and inspection

1. Remove dirt with water and brush (item 15, Appendix E).

WARNING

Dry cleaning solvent (P-D-680) is toxic and flammable. Avoid prolonged breathing of vapors. Avoid

skin contact. Use only in a well-ventilated area. Keep away from open flame. Flash point of solvent

is 138o F (50o C).

2. Remove grease with dry cleaning solvent (item 3, Appendix E).

3. Inspect for loose, missing or damaged hardware.

4. Inspect spring for cracks, breaks and excessive wear.

5. Inspect for rust or corrosion.

6. Replace spring if defective or excessive wear is apparent.

c. Installation

1. Position spring on axle.

2. Position end caps (11) and secure with eight screws (10), washers (9) and nuts (8). Tighten

nuts to a torque of 180 lb-ft (244 Nm) dry or 130 lb-ft (176.3 Nm) lube.

3. Install axle U-bolts (3) and secure each U-bolt with two nuts (1) and four washers (2). Tighten nuts to a

torque of 300 lb-ft (406.8 Nm) dry or 220 lb-ft (298.3 Nm) lube.

4. Install trunnion U-bolts (4), insert lower hub (7) in position and secure with nuts (6) and washers (5).

Tighten nuts to a torque of 880 lb-ft (1193.3 Nm) dry or 660 lb-ft (895 Nm) lube.

5. After installation of new spring, axle should be aligned in relation to semitrailer kingpin (para. 5-6).

Follow-onmaintenance:

Install wheels (para. 3-4).

5-7