Wheel and Tire

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Section II. OPERATOR/CREW 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

Chapter 4. UNIT MAINTENANCE INSTRUCTIONS

TM 9-2330-380-14&P

3-4. Wheel and Tire (cont'd)

b. Installation

WARNING

Tire is heavy. Two persons are required to remove/install tire.

NOTE

Before installing wheel and tire assembly, be sure that mounting surfaces of hub, ball seats and flat

mounting surfaces of wheel are clean and free of foreign matter or excess paint.

Check to see that threads of studs are clean and not damaged.

Perform steps 1 and 2 to install inner wheel.

1. If removed, mount inner wheel (7) on hub with

convex side (8) of wheel facing out. Install inner

wheel cap nuts.

2. Tighten cap nuts securely in tightening sequence

shown.

3. Mount outer wheel (9) on hub with convex side (8)

of wheel facing in and against inner wheel.

4. Make certain valve stem for outer wheel is not

aligned with valve stem of inner wheel.

5. Install outer wheel cap nuts. Tighten cap nuts

securely in tightening sequence shown.

6. As soon as possible, have unit maintenance torque

wheel stud nuts to 450-500 lb-ft (610.2-678.0 Nm).

NOTE

Tire pressure for M129A4 is 70 psi (482.65 kPa).

7. Inflate tires to correct pressure.

XM1063: Highway .............................................................................. 70 psi (482.65 kPa)

Cross country, sand, mud, snow ........................................... 45 psi (310.28 kPa)

8. Lower semitrailer and remove jacking equipment.

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