TM-9-2350-277-40&P Sustainment Maintenance Manual M113A3 M577A3 M1064A3 M1068A3 M58 Download
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4. Studs. a. Replace all bent or loose studs, or studs which show signs of stretching. b. Repair minor thread damage with standard thread chaser. c. To remove studs, back out studs slowly with stud extractor to avoid heating and possible seizure. If studs are broken too short to use extractor, drill and extract studs with suitable remover. A short stud may be removed by welding nut to stud and removing with wrench. d. To replace studs, lightly apply antiseize compound to stud before you install it. Only standard studs are supplied for repair parts. If threaded hole is damaged beyond repair, drill and tap damaged hole. Install threaded insert in tapped hole. 5. Gears. a. Replace gears that have worn, pitted, or gouged teeth. b. Remove sharp burrs from gear teeth with crocus cloth dipped in cleaning compound. CAUTION Damaged housing bore can cause equipment failure. Do not damage housing bore when cutting bushings. NOTE Do not remove bushings and bushing type bearings unless replacement is necessary and authorized. Removal usually damages these parts. 6. Bushings and bushing type bearings. a. Replace bushings and bushing type bearings if they are loose, scored, or have color change due to heat. When you replace bushings and bushing type bearings, check nearby parts for damage or wear. b. Remove bushings and bushing type bearings by pressing them out. Use a suitable arbor press or special tools. It may be necessary to remove bushings in blind holes with a saw, or by using a narrow cap chisel. c. Install bushings or bushing type bearings by aligning them in casting or retaining cage. Press bushing or bushing type bearings into place with suitable arbor press or with special tools. 7. Oil seals must be replaced when thin feather edge is damaged, or when seal material is brittle. a. Press damaged oil seal from casting. Be careful not to damage bore. b. When oil seal bore is damaged so an oil tight seal is impossible, replace casting or adapter. Remove slight nicks, burrs, and scratches with crocus cloth dipped in cleaning compound. c. Install new oil seal in casting bore or adapter using suitable oil seal replacement tool. 8. Replace insert when threads are stripped or when insert is cracked or loose. a. Drill and remove damaged insert from casting. b. Install new insert in casting using suitable replacement tool. c. Install plugs in armor mounting inserts, as required. d. Install setscrews in hull armor mounting screw holes, as required. 9. Seals, preformed packing, grommets, and gaskets should be replaced when removed unless otherwise stated in the maintenance task. They should not be reused. 10. Splined parts. a. Remove burrs from splined parts with a soft honing stone. b. Replace parts that are worn or have twisted, cracked, or broken splines. TM 9-2350-277-40&P 0004 0004‐8