TM-9-1240-400-34-P
TELESCOPE; PANORAMIC: M115, ELBOW: M139, MOUNT: M138 AND M137
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1993
TM-9-1240-400-34-P - Page 26 of 344
TM 9-1240-400-34&P
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
a.
Repair head assembly.
Refer to page 2-22.
b.
Repair body assembly.
Refer to page 2-28.
2.
ELEVATION KNOB (2) BINDS.
Observe visually.
Focus lens.
Refer to page 2-63.
BODY ASSEMBLY
3.
COUNTERS (3) DO NOT OPERATE.
Adjust knobs.
Repair body assembly.
Refer to page 2-28.
4.
COUNTERS (3) ARE ILLEGIBLE.
Observe visually.
Repair adapter assembly.
Refer to page 2-42.
5.
GEAR TRAIN (4) IS NOISY WHEN OPERATED.
Rotate knobs.
Repair body assembly.
Refer to page 2-28.
ELBOW ASSEMBLY
6.
LENS (5) WILL NOT FOCUS.
Observe visually.
Repair elbow assembly.
Refer to page 2-50.
7.
LENSES (5) ARE DAMAGED.
Observe visually.
Repair elbow assembly.
Refer to page 2-50.
2-11
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