TM-9-2350-277-20-4 Unit Maintenance Manual Volume 4 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-4 REPLACE COMMANDER’S CUPOLA AZIMUTH LOCK (M113A3, M1059A3, M58 AND M1064A3 ONLY) — Continued 0489 00 INSTALLATION NOTE Use the least number of washers needed to release pin in unlocked position. 1. Install spring (6), pin (3), washer(s) (5), and bushing (4) in hull ceiling below commander’s cupola. 2. Align handle (2) with pin (3). Secure with new spring pin (1). FOLLOW-THROUGH STEPS 1. Operate azimuth lock (see your -10). Check that cupola can be locked and unlocked. If cupola does not unlock, add more washers (5) under bushing (4). END OF TASK 0489 00-2