PS Magazine - TB 43-PS-425

PS, The Preventative Maintenance Monthly

ISSUE 425

APRIL 1988
PS Magazine - TB 43-PS-425 - Page 9 of 33
M101A± Twed Howitzers .²²
Instrument Tes±ing Not in TM
The micrometer test fr the MIA!/
M±A2 gunner's quadrant was leFt out oF
TM 9-10²5³203´12 (µeb 87).
Without the test, you won't know
whether you have a FunctionaL quadrant
when you do the end³fr³end test befre
¶iring· Bad readings Lead
.±=²:³´µ¶·¸¹
to disasters, so make
a note oF this pro¸
cedure untiL
your TM
_±
catches
up:
SE³ ³hE InDEx
a³ ZERO´
SE³ ³hE mIcROmE³ER
a³ µ¶·
POIn³ ³hE gunnER'¸
quaDRan³ ³OWaRD ³hE
muZZlE´
¹hE gunnER'¸ quaDºan³
lEvEl vIal bubblE
¸hOulD cEn³ER»
¼p½88
M102 Twed ¾owitzers .
..
Quadran² Setting Error ³essage
Nor WHefE/ R±'s
A
C¿ÀNGÁ
F²OM
3ÂÃ ÄÅ 5
ÆÇ
V³u´ µl¶va·LDn
CdU¸T¹ º
That 300´miL setting FOr the M14A¹
quadrant elevation couNter when Laying
the º102 howitzer is not the onLy set¸
ting you can use·
Even though Step 3 on Page 2´35 oF
TM 9´1015³234³10 (Aug 85) says 300
mils and nothing eLse, your local unit
S»P can prescribe a di¼erent set½ing·
The TM erRor wiLl be corrected to say
that the assistant gunner sets 300 miLs or
another eLevatioN dictated by unit S»P
on the¾ M 14A 1
quadrant eLevation
Always ´ake Grille Suppor± Off
¿aking a shortcut with the intake griLle support assembLy, oÀ armor jack, is a
sureFiÀe ticket to a busted Àadiator, mechs·
The support must be removed as shown in the TM's beFOre puLLing the power¸
pack and instaLLed aFter the pack is in pLace·
»therwise, there's so LittLe cLearance between the radiator and the support that
it's aLmost impossibLe to prevent damage·
Á
You may think you're saving time and work by Leaving the support in pLace,
but you won't have saved a thing iF you ruin a radiator·
ÂememberÃtake the support o¼ and puLL the pack out· Put the pack in and
instaLL the jack· Äo shortcuts aLLowed·
¼pÈ88
ÉÊ
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