TM-9-2350-273-BD M60 M48 Battle Damage Assessment and Repair Download
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TM 9-2350-273-BD ENGINE 3-17. ENGINE/TRANSMISSION HOUSING DAMAGE General Information: Small cracks or holes may develop in a cylinder block or transmission housing due to vibrations or severe shock forces like mine explosions. Any battle damage to the power pack should be assessed by the MT. Limitations: Degraded reliability Personnel/Time Required: 3 soldiers 12-24 hours Materials/Tools: Oxy-Acetylene torch for brazing Bulk issue fiberglass or epoxy kit TIG or MIG welding gun for aluminum Permatex, any grade Lift capability Other Options: Continue operations. Procedural Steps: 1. Remove power pack when required. 2. Clean damaged area. 3. Fill small cracks or holes in low stress areas either with permatex, fiberglass, or epoxy. 4. Many cracks and holes in stress areas can be repaired by a TIG or MIG welding gun for aluminum, but precautions must be taken to prevent the housing from warping. Iron castings can be brazed using an oxy-acetylene torch. 5. Re-install power pack. 6. Record the BDAR action taken. When the mission is completed, as soon as practicable, repair tank using standard maintenance procedures. 3-16