TM 9-2350-261-20-1
I N F R A R E D P E R I S C O P E W O R K S I M P R O P E R L Y
INITIAL SETUP
Tools:
General Mechanic’s Tool Kit (Item 30, App D)
Digital Multimeter (Item 43, App D)
Personnel Required:
Unit Mechanic
References:
See your -10
Equipment Conditions:
Engine stopped/shutdown (see your -10)
Carrier blocked (see your-10)
Periscope stowed (see your -10)
I.R. power switch OFF (see your-10)
1. Turn MASTER SWITCH to ON.
1. Go to: Master switch on
2. Is MASTER SWITCH indicator light ON?
indicator does not light (page
.
3-129).
WARNING
High voltage in the M19
periscope can cause serious
injury or death. Voltage
could exceed 16,000 volts.
To avoid accidents, observe
the following
Always connect power cable to periscope
before turning MASTER SWITCH and
infrared (I.R.) POWER switch to ON.
Before disconnecting power cable from
M19 periscope, always wait at least two
minutes after turning infrared (I.R.)
POWER switch and MASTER SWITCH
OFF.
Do not disconnect power cable until image
disappears from periscope screen.
Never touch end of power cable, or allow it
to contact metal surfaces.
1. Replace I.R. power pack with known good power pack
(page 12-134 or 12-137).
3-112
Change 1
