TM-9-2350-277-20-2 Unit Maintenance Manual Volume 2 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-2 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0155 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED C R E W M E M B E R PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 12 Semi- Annual Sprocket Mounting Screws a. Check sprockets on both tracks for wear indicating that mounting bolts have come loose. Tighten loose bolts to 110-115 lb-ft (149-156 N m) torque. Use torque wrench (WP 0926 00, Item 79). Any bolts are missing, loose, or worn. b. . Check sprocket cushions for wear. Replace cushions if gouges, chips, or cuts cause thumping (T130 Track, see WP 0421 00) (T150 Track, see WP 0420 01). 0155 00-56 Change 3 Any bolts are missing, loose, or worn. 13 a. Check sprocket hub bolts for looseness or missing bolts. Tighten loose bolts to 170- 190 lb-ft (231-258 N m) torque. Use torque wrench (WP 0926 00, Item 79). If bolts are missing, replace bolts (T130 Track, see WP 0420 00) (T150 Track, see WP 0420 01). Sprocket Hub Bolts Semi- Annual