TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 12-21. SUSPENSION CROSSMEMBER REPAIR This task covers: a. Removal b. Installation INITIAL SETUP: Materials/Parts Maintenance Level Metal strip (Appendix B, Item 36) Direct Support Manual References TM 9-237 TM 43-0139 a. Inspection I 1. Visually inspect the main frame rails for damage or distortion. Vehicles with damaged frame rails should be sent to GS maintenance for repair. NOTE Crossmember with end bracket weld breaks of more than 1 in. (2.54 cm) must be replaced. Any crack pr tear in the crossmember longer than 1-3/4 in. (4.4 cm) requires replacement of the crossmember. 2. Inspect the crossmember (1) for bends, cracks, or broken end bracket welds. Bent crossmembers (1) should be straightened. Small cracks or tears should be stop-drilled and welded. b. Repair NOTE Heli-Arc, MIG, or TIG welding equipment may be used, provided the electrode used has a 70,000 (482,650 kPa) psi tensile strength. Avoid heat buildup in the rubber bushing areas toward the outer edges of the crossmember. For welding instruction refer to TM 9-237. 1. Center a 15-1/2-in. (39.4 cm) metal strip (3) between the end brackets (2), flat against bottom edges of the crossmember (1). Weld the metal strip (3) to the crossmember (1). 2. Spot paint welded area. (Refer to TM 43-0139). 12-38