TM 9-2350-222-10-3
TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
s
33. COMMANDER'S M36 OR M36E1 PERISCOPE HAS NO NIGHT VISION,
OR NIGHT VISION IS FOGGY WHILE OPERATING IR BODY OR
PASSIVE ELBOW ON VEHICLE POWER.
CAUTION
Always remove battery when it is not being used (M36). Install
converter. Battery must be removed and converter installed for
vehicle power operation.
Perform IR and night checks under low light conditions. When
not is use, a light shutter is provided to protect the elbow
against light exposure and an opaque disk is provided to
protect the IR body. Do not operate elbow or IR body under
daylight conditions unless ballistic shield is closed. These
measures are to prevent damage to the equipment.
NOTE
If vehicle power is lost, reset M36E1 periscope passive elbow
power switch each time.
Step 1. Check for proper focus.
If not focused, adjust focus,
Step 2. Check if lens is dirty.
a. If dirty, clean lens with lens tissue or soft clean cloth and cleaning
solution (item 9, appendix D),
b. If periscope still does not operate properly, notify organizational
maintenance.
TA252949
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