TM 9-1240-401-34&P
5-9. DIRECT SUPPORT TROUBLESHOOTING - continued
MALFUNCTION
LOCATION
TEST OR INSPECTION
CORRECTIVE ACTION
ELBOW ASSEMBLY
3. LENS (5) IS FOGGED OR CONDENSATION IS
PRESENT.
Observe visually.
Purge and charge telescope
(TM 750-116).
5-10. GENERAL SUPPORT SYMPTOM INDEX
Troubleshooting
Procedure
(Page)
CAP ASSEMBLY
Cap binds or jumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 5-9
COUNTER ASSEMBLY
Azimuth counter and reset counter are not legible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 5-9
Azimuth counter and reset counter do not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 5-9
Differential gear assembly noisy when azimuth knob is operated . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-9
ELBOW ASSEMBLY
Lens is damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 5-9
Lens will not focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 5-9
