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 27 of 344
TM 9-1240-400-34&P
2-6.
TROUBLESHOOTING PROCEDURES (CONT).
GENERAL SUPPORT SYMPTOM INDEX
Troubleshooting
Procedure
(Page)
HEAD ASSEMBLY
Elevation knob binds .
...........................................................................................................................
2-10
Head binds or jumps .
...........................................................................................................................
2-10
BODY ASSEMBLY
Counters do not operate.
..................................................................................................................
2-11
Counters are illegible.
.......................................................................................................................
2-11
Gear train noisy when operated .
......................................................................................................
2-11
ELBOW ASSEMBLY
Lens will not focus .
...........................................................................................................................
2-11
Lenses are damaged.
.......................................................................................................................
2-11
Table 2-3.
GENERAL SUPPORT TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
HEAD ASSEMBLY (1) BINDS OR JUMPS.
Observe visually.
2-10
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