PS Magazine - TB 43-PS-439
PS, The Preventative Maintenance Monthly
ISSUE 439
JUNE 1989
I
f you expect your aiming circle to tell
you true, you need to make an honest
eFort to taKe care of your M2.
±or insTance:
•
Never lean on your M2. You'Ll
bend the screws in The locking plate or
stRip the gears inside The M2. Set the
M2 f²at on iTs case ³r transpoRt. ´eep
its cover latched when you're not sight-
ing. And µnd so¶e·g eLse to Lean on.
Never lean
your
M2,
Lay it dow±
Unlock the compass needLe onLy
³r sighting. ¸ock it back up when
you're through. OTherwise, the needLe
can be damaged.
UnLock
compass
needle for
sighting,
then lock
it back
•
Always tu¹ aLL three leveLing
screWs aT the same time. Or TuRn each
LeveLing scRew no more thaº
1/4
tuRº at
a time. If you tu¹ one screw Too faR,
The others Bind.
If you caº't turº alL ThRee Leveliºg
screws wiTh your fȼgertips, Loosen the
±0
JUN 89
T²rning one or ³wo
leve´ing screws at a tIme
bends spring plates
Howitzers .µ¶
•
Check Leg screws bef¼Re going To
The fieLd. ½he screws woRk Loose and
your M2 has shaky Legs. ¾ighten loose
screws.
·evelIng
screws hard
to turn?
·oosen
adjusting
screws
²
turn
¿f a screw's m1ssÀg, don'T try to
replace it yourseLf. Get youR RepaiRmaº
to put in The Right screw, one That's
brass or aluminum. A steeL screw
throWs oÁf The compass.
You've Got to Boresight 'em, Too
J
ust because The fire coºTRoL iºsTRÂmenTs on your MÃ02, MÄ09Åseries, oR
MÆ Ç0A2 howiTzer check out wiTh The MÆ40 aLigºmeºT device doesn't mean The
howitZer's boresighTed.
½he MÇ40 checks fiRe coºtroL instruÈeºTs oºLy. ¿f you know your howitzer
is boresighted, and the MÄ40 shows ThaT The ÉiRe controL insTruments are aLigned,
you're good to go. ¿f you doº't kºow, Boresight the cannon aºd Then aLigº the
sights, or your howiTzer couLd hit The wroºg taRget .
.. or peop²e.
If The fiRe coºTRoL iºsTRumeºTs doº't aLigº wiTh the MÆ40, do The aLigºmeºt
device comparisoº test again oR Boresight againÊ ¿f The MË40 sTiLL is out of
To²erÌnce, Tu¹ iT iº f¼R Repair.
JUN 89
±±
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