TM 9-1240-401-34&P
5-11. GENERAL SUPPORT TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
LOCATION
CORRECTIVE ACTION
CAP ASSEMBLY
1. CAP (1) BINDS OR JUMPS.
Observe visually.
Replace damaged balls in cap (ref. para
COUNTER ASSEMBLY
2. AZIMUTH COUNTER (2) AND RESET COUNTER (3)
DO NOT OPERATE.
Adjust azimuth and reset counter knobs.
Repair body (ref. para 5-17).
3. AZIMUTH COUNTER (2) AND RESET COUNTER (3)
ARE NOT LEGIBLE.
Observe visually.
Repair adapter assembly (ref. para 5-23).
4. DIFFERENTIAL GEAR ASSEMBLY NOISY WHEN
AZIMUTH KNOB (4) IS OPERATED.
Rotate knobs.
Repair differential gear assembly (ref.
ELBOW ASSEMBLY
5. LENS (5) WILL NOT FOCUS.
Observe visually.
Repair elbow assembly (ref. para 5-19).
6. LENS (5) IS DAMAGED.
Observe visually.
Replace lens (ref. para 5-20).
