TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 18–6 Change 2 18–2 M118A2/M118A3 ELBOW TELESCOPE This task covers: a. Disassembly b. Inspection c. Assembly INITIAL SETUP Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Materials/Parts Sealing compound (item 28, Appx D) Self-locking nut (item 1, Appx G) References TM 9–2350–311–10 TM 750–116 Equipment Condition M118A2/M118A3 Elbow telescope removed (TM 9–2350–311–10) a. Disassembly 1 Remove air valve cap (1) and valve core (2) from purging valve stem (3). 2 Remove purging valve stem (3) from M118A2/M118A3 elbow telescope (4) and strap (5) from purging valve stem (3) and from air valve cap (1). 3 Remove machine screw (6) from exit port. 4 Remove self-locking nut (7) and machine screw (8). Discard self-locking nut. 5 Remove loop clamp (9) and optical eyeshield (10). 6 Unscrew and remove lamp (11) in cover access (12) of M118A2 elbow telescope only. 7 Notify support maintenance for replacement of LEDs if damaged for M118A3 elbow telescope only. 8 Remove setscrew (13) and knob (14). b. Inspection 1 Notify support maintenance if lens (15) is scratched or cracked. 2 Notify support maintenance if eyepiece arm (16) does not move easily or remain in locked position. 3 For additional inspections refer to TM 9–2350–311–10. c. Assembly 1 Slide loop clamp (9) on optical eyeshield (10) and assemble to eyepiece end of M118A2/M118A3 elbow tele- scope (4). 2 Secure optical eyeshield (10) with machine screw (8) and new self-locking nut (7).