TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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Change 1 20-21 20-4. STEERING ALIGNMENT INITIAL SETUP: Tools ____ General mechanic's tool kit: automotive (Appendix G, Item 1) Alignment equipment (Appendix G, Item 142) Materials/Parts _____________ Two locknuts (Appendix E, Item 62) Manual References _______________ TM 9-2320-280-10 TM 9-2320-280-20 TM 9-2320-280-24P Equipment Condition _________________ Tires inflated to proper pressure (TM 9-2320-280-10). Maintenance Level _______________ General support This task covers: a. Caster and Camber Check c. Toe Check and Adjustment b. Caster and Camber Adjustment NOTE The alignment check will be made on a level surface with front tires in the straight-ahead position. Vehicles will be checked at curb weight only. 1. Check caster and compare to the specifications in table 20-1 for bias tires and table 20-2 for radial tires. 2. Check camber and compare to the specifications in table 20-1 for bias tires and table 20-2 for radial tires. 3. If either caster or camber does not meet specifications, go to task b. CASTER CAMBER TOE MODEL FRONT/REAR FRONT/REAR FRONT/REAR (±1.5°) (+1.5°,-0.5°) (±0.13 in. (3.3 mm)) M998, M1025, M1026, 2.0°/0.0° 0.8°/1.7° 0.4 in. (10.2 mm)/ M1035, M1038, M1043, M1044 -0.4 in. (-10.2 mm) M966, M1036, M1037, 2.0°/0.0° 0.8°/1.5° 0.3 in. (7.6 mm)/ M1042, M1045, M1046 -0.3 in. (-7.6 mm) M996, M997, M1121 2.0°/0.0° 0.8°/1.7° 0.3 in. (7.6 mm)/ -0.3 in. (-7.6 mm) Table 20-1. Alignment Specifications for Bias Tires. CASTER CAMBER TOE MODEL FRONT/REAR FRONT/REAR FRONT/REAR (±1.5°) (±1.0°) (±0.6 in. (1.6 mm)) M996, M996A1, M998, M998A1, M1025, M1025A1, M1025A2, M1026, M1026A1, M1035, M1035A1, M1035A2, M1036, M1038, M1038A1, M1043, M1043A1, M1043A2, +1.50°/0.0° +0.68°/+1.50° 0.13 in. (3.3 mm)/ M1044, M1044A1, M1045, M1045A1, -0.13 in. (-3.3 mm) M1045A2, M1046, M1046A1, M1121 M997, M997A1, M997A2, M1037, +1.44°/0.0° +0.68°/+1.44° 0.09 in. (2.3 mm) M1042 -0.09 in. (-2.3 mm) M1097, M1097A1, M1097A2, M1123 +1.44°/0.0° +0.38°/+2.12° 0.09 in. (2.3 mm) -0.09 in. (-2.3 mm) Table 20-2. Alignment Specifications for Radial Tires. a. Caster and Camber Check TM 9-2320-280-34