PS Magazine - JULY 1985
PS, The Preventative Maintenance Monthly
ISSUE 392
JULY 1985
1
-
·±
:
ou
gunners crank up the
·
thermal sight on your M60A3 tank,
MI
t
, ±2 ²FV or ±3 CFV, you
tuR on the heat, too.
An automatic cooLing system handles
³
the heat put out by the warming-up
´sight. ²t's up to you to make sure
it's working.
The µhree sights signal cooling¶two
²,.³ _ ´
have lights, one is noiSy. ·gnore those
signs and you risk Damage to your sight.
I
i
I
"
Here's what to look fr:
Tank thermal Sigh± (²³S)
The ±60A3's TT¸ should take no
more than 15 minutes to
"cool-down.¹
The TT¸ B²TE display panel tells
You what's happening.
Wiµh µhe ±OºE switch
i
¸»B¼, the
COO½ light in the lower le¾ co¿er
comes on. ²t sÀays on until proper
cooling Áas
T
Place.
2
JUL 85
When the COO½ light
goes ou±,
tu¿ the ±OºE switch ON and go.
²Â the COO½ light does /not go out
wiÃn 15 mÄnutes, you've got problems.
Å ¸hut the sight down and tell your Æech.
theRmaL Imaging sy´µem (³IS)
¼our ±Ç Abrams' T²¸ needs about
È a 15Éminute cool-down, too.
A¾er the ±OÊE switch goes to
¸TB¼, the TËU ËEAº¼ light should
come on within 15 Æinutes.
.
c
RI
'
-±
.
f'
JUL 85
FAUL
TRU READY light
should Come on
wIthin 15 minutes
Ì
²Â it d
²
esn't, your system isn't coolÍ
Î
ing properlY. ¸hut it down and notiÏ
maintenance A¸AÐ.
EmeRgency Opera±¶on
The TT¸ and the T²¸ will operate
befre cool-down i combat demands
it, but they may be weak and have a
poor image. ·Â a¾er 15 minutes the
lights show that proper cooling still
hasn't taken place, shut down the sight
and tell your mech.
3
InµegRaµed Sigh± Uniµ (ISU)
The ±2ѱ3 Bradley sight has no
light to clue you in.
Ò¾er switching ÐWË to ON, the
sight does need about a IÓÉminute
cool-down, tho.
N±GH² V³S³ON
0
o:
Br´
µ¶·
ON
®
.
OFf
b¸¹³º
Wait 10 minutes
afe» switChing
PWR to ¼½
·Â iÔ isn't cooleÕ, µhe ·¸U wiÖl noÀ give
you ×an iÆage.
.
A clue to coØling is Ùe ÚuÛÜng oÂ
the closeÝ cycle cooler. When you
switch ÐWË to ON, you should hear
the cooler.
No image a¾er IÓ minutes or cooler
noise? ¸Áut the sight oÞ and tell
your repairman.
_
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