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: 78 Semi- Annual Commander’s Platform (Except M1059A3) a. Check platform lock to make sure the platform locks securely in various vertical positions (see your -10). Any missing, broken, or cracked platform hardware, or vertical locking mechanism failing to lock in any position. b. Check that platform securing catch and stowing catch work properly (see your -10). 79 Semi- Annual Operator’s Seat (M1059A3 and M1068A3) a. Lubricate locking mechanism and catch as needed with OE/HDO. 0155 00-124 Change 3 .1 .1 Notify supervisor. 80 VISION BLOCKS Semi- Annual CUSHIONING PAD Commander’s Cupola (M113A3, M1064A3 and M1059A3) d. For the M1059A3, check bracket and stop. Replace missing or broken parts (WP 0499 00). c. Check for smooth rotation of commander’s cupola. Replace bearings as required. b. Replace cracked or chipped vision blocks (WP 0490 00, WP 0491 00). a. Replace cut, cracked, or hard cushioning pad. Replace vision blocks that have more than 50 percent impairment (see your -10).