TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 2-5. CATEGORIES OF INSPECTION a. An initial inspection (ref. para 2-6) is performed immediately on receipt of the M146 telescope nance. This inspection will determine the amount and type of work to be performed. b. A final inspection (ref. para 2-1 5) is performed iceability standards. after repairs mount for mainte- have been completed to ensure the item meets serv- 2-6. INITIAL INSPECTION Item No. Item To Be Inspected Procedures 1 M146 TELESCOPE MOUNT Examine M146 telescope mount (1) for good overall appearance with all parts securely tightened in place. 2 MOUNTING SURFACES Check mounting surfaces (2) for burrs and corrosion 3 BRACKET ASSEMBLY Check that elevation bracket (3) slides freely without binding . Visually observe elevation bracket for evidence of excessive wear. 4 KNOBS Operate knobs (4). Verify that operation is smooth without binding or rough motion and that adjustment provides 2–1/2 revolutions minimum total movement. 5 CABLE ASSEMBLY Visually inspect cable assembly (5) for damage. Test continuity in cable circuit using multimeter. 2-3