TM-9-2350-261-20-1

CARRIER, M113A2, M577A2, M1064, M1068, M1059 AND M901A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL - VOLUME 1 OF 4

TM-9-2350-261-20-1 - Page 261 of 346

TM 9-2350-261-20-1

INFRARED PERISCOPE WORKS IMPROPERLY — Continued

0040 00

Y

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

(WP029100orWP029300)

.

2.

Turn MASTER SWITCH to ON (see your -10).

3.

Turn I.R. switch to ON (see your -10).

4.

Does I.R. periscope work?

YN

GO TO

BY

(PAGE 0040 00-3)

2Y

1.

Replace original I.R. power pack (WP 0291 00 or WP 0293 00).

2.

Verify no faults found.

004000-2

WARNING