PS Magazine - APRIL 1979
PS, The Preventative Maintenance Monthly
ISSUE 317
APRIL 1979
Thin thiNgs out befOre yoU puRgE :
LikE looK up thE paRticu±aR iNstRu·
mENt You'RE goiNg to woRK oN iN TM
750-116, oR thE FiRE coNtRo± iNstRu²
mENt tEcHNica± maNua±. It tE±±s You
whAt adaptER to usE (iF aNY) aNd shows
You whERE thE ENtRaNcE aNd Exhaus³
poRts aRE.
´NtRaNcE poRts aRE µsua±±Y ciRc±Ed iN
gRaY paiNt ¶Nd Exhaust poRts iN YE±±ow
TaKE oFF t¸E Caps (oR uNscREw thE
scREws¹
oF Both ºouR ENtRaNcE aNd
6
cou±d Bui±d
up PREssuRE aNd B±oW
thiNgs apaRt iNsidE Your FirE C»NtRo±
iNstRumENt.
¼N most oF YouR ½E¾tRa¾cE va±vEs
thERE aRE \¿iN outsidÀ thREads t» mEsh
With thE iNtErNa± thREads oN thE E¾d »F
poRt cap iF REtaiNiNg stRaP is missiNg
Á
GEt thE puRgiNg FÂRmu±a (pREssuRE
ÃÄ
.
BEcausE Youű± haVE to put it BacK agaiN
aNd timE) FoR YouR paRtiCu±arÆ FiRE
·
aFtER chaRgiNg.
coNtRo± iNstRumENt FRom TM750-116.
IF YouR ENtRaNcE va±VE Ças a scREw
¼pȾ thE prEssuRE REgu±atoR va±VE
iNstEad oF a cap, Youű± NEEd oNE oFÉÊ
.
uNti± thE PRopER PREssuREËNEaR±Y
adaptERs FRom thE 3-PaRt Kit,
NSN
Ì
a±waYs 5
PsI
ÍshoWs oN thE ±ow-
Valve has
'
.
t
pRÎssuRE ÏagE. ÐhEN thE FiRE coNtRoÑ
screw?
lL
±
²³
´/-
32
u
N
C->
iNstRumENt has PuRgEd FoR thE REÒ
Use
,
±
²
³
quiREd timE, shut oFF thE pREssurE
Adapter
4
±
²U
N
c
³
z
f:
REgu±atoR Va±VE.
Ó
µ¶·¸¹º
.,
-
.
·
±
Get y
_
ur
. M•0
-
±
32uNr²z
for
u
»¼
,
½¾
om
-²³´
µ
±
´
¿
TM750-116
4931-00-936-4283. ÔEEp thE scREw iN
a saFE p±acE so Youű± havE it to put BacK
whEN You'vE FiNishED ÕuRgiNgÖ
ÐhEN usiNg aN ada×tER BE caREFر
Ù
Not to moVE it sidEwisE aFtER You gEt it
coNNEctEd BEcausE You might sNap thE
ENd oFF.
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