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

D O M E L I G H T ( S ) W O R K I M P R O P E R L Y ....CONT.

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 .....CONT.

TM-9-2350-261-20-1 Carrier Personnel Full Tracked Armored M113A2 2350-01-068-4077 Carrier Command Post Light Tracked M577A2 2350-01-068-4089 Manual
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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

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