TM 9-2350-222-10-3
TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
36. DRIVER CANNOT SEE CLEARLY THROUGH M24 IR PERISCOPE - PINK LIGHT
BACKGROUND - NO CLEAR IMAGE (PICTURE) - Continued
WARNING
Wait at least 2 minutes after IR POWER switch is turned off
before touching periscope power cable. High voltage is pres-
ent for several seconds after IR POWER switch is turned OFF.
CAUTION
Perform M24 IR periscope checks during darkness. Do not ex-
pose IR periscope to direct sunlight. Bright light will damage
the periscope.
Step 1.
Set IR POWER switch and MASTER BATTERY switch to OFF.
Wait 2 minutes.
Step 2. Disconnect power cable and remove periscope from hatch cover
(page 2-596).
If exterior lenses are dirty, clean with lens tissue or soft, clean cloth
Remove periscope head from periscope and check interior lenses
Step 3.
If dirty, clean with lens tissue or soft, clean cloth and cleaning
a.
b.
Connect IR power cable to the periscope and set MASTER
Step 4.
BATTERY switch and IR POWER switch to ON.
Check to see if periscope is focused.
Step 5.
a.
If not focused, adjust focus (page 2-256).
b.
If periscope focus will not adjust, notify organizational
maintenance.
TA132873
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