PS Magazine - MARCH 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 244
MARCH 1973
In a pinch you can use it as a sexTanT,
THeodolite or surveyor's TransiT in addi-
Tion to its regular duTies in measuring
azimuTh and elevaTion beaRing angles.
So cHeck ouT This faiThful liTTle helpER
like so ±.
.
GENERAL APPEARANCE
²he importanT woRds foR M2 mainTe³
nance aRe clean and dRy. Keep it clean
and dRy and you Take caRe of mosT of your
problems before they have a chance To
happen´
You need pRoTective coverµ FSN 1290¶
-.±²³;:´
346¶8171 (8211749)´ If all you need is The
strap, it·s FSN 1290¶712¸9438. YouR man³
ual for the M¹ Aiming Circle is an olde
but a goode, ºM 9¶6»66 (Oct
55),
w/Ch
I
<Jun 63¼.
CLEANING, LUBe, pAinT
You never use diesel fuel, caRbon teTra³
chloRide,
gasoline
oR
benzine
To clean
!
youR M2. If you use mineral spiriTs pa½nT
µ¶
Thinners, Remember you·ll need plenTy
/
venTilaTion´
Send your aiming ciRcle to diRecT sup¶
l
\
j
poRT
when
it needs lube. ¾xcepT¿you
\
give the leveling screws a coupla drops of
/
light lube oil monthly´
Paint? ²ouch up only.
•
i
Numbers not blurred. No
slippage when-moved in
one direction or the other±
²Not
chunked, rotted or
cracked³ If it's missing´
you can order a new one
as
FSN 1240-346±7676.
sC
²Numbers Readableµ
¶ndex maRker clear·
² T
¸
²Not missing¹
loose or painteD oveR± ºe»
member: Use a filter if
you point the telescope
diRectly at the sun; the
heat can damage the optics±
StE·¸bY¹StEP
³´
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