TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 5-6. TROUBLESHOOTING PROCEDURES (CONT). Table 5-2. DIRECT SUPPORT TROUBLESHOOTING MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION MOUNTING SURFACES 1. MOUNTING SURFACES (1) DO NOT SEAT Ml15 TELESCOPE CORRECTLY. Observe visually. Remove burrs and clean mounting surfaces. Refer to TM 9-254. CROSS-LEVEL ASSEMBLY 2. CROSS-LEVEL CONTROL (2) IS ERRATIC AND ROUGH DURING MOVEMENT. a. Check for worn worm shaft. Replace worm shaft. Refer to page 5-29. b. Check for worn gears in gear sector. Replace gear sector. Refer to page 5-40. 3. CROSS-LEVEL CONTROL (2) EXCEEDS 1.0 MIL BACKLASH. a. Check for worn bearings. Replace bearings. Refer to page 5-29. 5-6