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TM 750-116
f. Periscope, M36 Tank (figs. 3-23 through
3-26).
ENSURE THAT 1.5-OFF-24V SWITCH
ON THE BOTTOM OF THE INFRARED
BODY ASSEMBLY IS SET TO OFF; THIS
UNIT CARRIES 16,000 VDC.
Do not purge and charge the infrared body
assembly in bright light; prolonged exposure
can cause damage to the image conversion
tube.
NOTE
The periscope must be removed from the in-
stalled position for purging and charging opera-
tions. Refer to appendix A for a listing of
applicable publications.
(1) Head Assembly (fig. 3-23).
(2) Daylight Body Assembly (fig. 3-24).
NOTE
The daylight body assembly and the infrared
body assembly must be removed from the head
assembly for purging and charging procedures.
Refer to appendix A for a listing of applicable
publications.
Figure 3-24 M36 Daylight Body Assembly
Figure 3-23 M36 Head Assembly
(a) Perform purging and charging procedure para
(a) Perform purging and charging procedure para
2-5.b.
2-5.b.
(b) Purge instrument at 8 psig for 5 minutes.
(b) Purge instrument at 8 psig for 5 minutes.
(c) Charge instrument at 1 psig for 10 seconds.
(C) Charge instrument at 1 psig for 20 seconds.
(d) Leak test for minimum of 5 minutes.
(d) Leak test for a minimum of 5 minutes.
3-11
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