TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P MALFUNCTION TEST OR INSPECTION LOCATION CORRECTIVE ACTION 4. ELEVATION COUNTER (4) FAILS TO ALLOW 1383 MILS ELEVATION AND 228 MILS DEPRESSION. Step 1. Check for incorrectly installed counter. Reinstall counter correctly (ref. para 5.1-19). Step 2. Check for incorrectly assembled counter. Reassemble counter correctly (ref. para 5.1-20) Step 3. Check for defective counter assembly. Replace counterassembly (ref. para 5.1-19). WORMSHAFT ASSEMBLY 5. ELEVATION KNOB (5) EXCEEDS 0.5-MIL BACKLASH TOTAL. Step 1. Check for incorrectly adjusted retainers. Adjust retainers (ref. para 5.1-19). Step 2. Check for worn or damaged parts. Remove wormshaft assembly (ref. para 5.1-19) and replace parts as required and authorized. Change 1 5.1-15