TM-9-1240-401-34-P
TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 1993
TM-9-1240-401-34-P - Page 40 of 590
2-6
TM 9-1240-401-34&P
I
2-9. DIRECT SUPPORT TROUBLESHOOTING - continued
MALFUNCTION
TEST OR INSPECTION
LOCATION
CORRECTIVE ACTION
5.
DEFLECTION KNOB 7) IS ERRATIC AND ROUGH
Rotate deflection knob from stop to stop.
a. Adjust deflection knob mechanism (7)
(ref. para 2-15).
b. Replace damaged deflection knob
mechanism parts (ref. para 2-11).
c. Install shims between plate spacer and
mount as required (ref. para 2-11).
CABLE ASSEMBLY
6. CABLE ASSEMBLY RECEPTACLE (8) DOES NOT
PROVIDE POWER FOR THE M118A2/M118A3
ELBOW TELESCOPE.
Perform continuity check of cable assembly
a. Check soldered connections.
b. Replace damaged or missing parts
(ref. para 2-13.
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