PS Magazine - TB 43-PS-455
PS, The Preventative Maintenance Monthly
ISSUE 455
OCTOBER 1990
'1
or all the good water does pLants
and animaLs, it does absoLutely no good
fr the interior oF combat vehicles
when appLied under pressure.
A
good example oF the damage-
traversinG mechanism asseMbly ±ilure
on a ²J09³series howitzers.
The traversing mechanIsm
.
assembly doesn't need waterIng!
The cLutch and no´back compOnents
oF the traveRsing assembly don't Like
water fr two µeasons¶ It shorts out
eLectricaL connections· and it corrodes
bearings¶
This water damage is not caused by
a heavy dew or rainFAll. It's caused by
high pressure water or steam appLied
by soMeBody Looking fr a quick cab
cleanup¶
Keep the high¸pressure hose out oF
howitzer cabs (and away ¹om aLl comº
bat vehicle turrets and cabs). CLean up
with a Mop and pail, or wet cLoths.
Nothing good coMes ¹om water inº
side a combat vehicle¶ »nLy trouble
grows¶
M109·Series ±P
HOwi±zErS,
M²²2
AM²o CarR³e´µ
.±²
Hub Nut Torque Change
L
oosE idLer and road wheeL hub nuts
¼ubricate stud threads with »½/
have aLways been a probleM fr ²J09s
HD» engine oiL or
GAA
grease be¾re
and ²992s.
Vibration during operation and ¿rinG
Loosened the nuts, no matter how creWs
and Mechanics Àried to Áeep them tight¶
Âet torque, instead oF dry torque,
may soLve the ProbLeM¶
Ãoth IJ 9´2350³311Å20´1 (¾r the
Æ09s) and T² 9Å2350´267Ç20 (fr the
992) wiLL be changed to show wet torÈ
quing oF hub nuts to 180 Lb´Ft¶
8
ÉÊe oiL and grease aËe expendabLe
iteMs ¾r both vehicLes.
OCT³´
µuµv .
..
ust a couÌLe oÍ operator cÊecÎs anÏ
a seMÐannuaL ÑLeanÐnG go a LonG waY
ÒowÓËd MÓÁÐnG sure Your SmaLL Unit
SuÌÌoËÒ VehÔcLe ÕSUSÖ) Ðs FÐËeÌroo×Ø
i
aÙe
sure Òhe ÌÚËÁÐnG BrÓÁe Ðs
reLeaseÛ be¾re You ÜËÐÝe oÞß àn oÝerá
heated brÓÁe sYsteM can cause ¿res.
âLso, be caËãäl when You aÌÌLy thå
seËvÔæe brÚÁe whiLe weaËÐnG oÝersizeç
¾otGeÓ˶ Ähe èaËéinG brêe Ðs onLy
eiGhÒ incëes ¹oM Ò!e seìÝÐce braÁeí
Oct³¶
g
enGÐneîtËansïÐssion
coMÌaËtment ¾r ðuÐd leaés or debrÐs
be¾re eÝeËY oÌeratÐon ¶
³-´µ
IF You ñnd Leaòs or trash; Let Your
mechanÐc Áóow now¶ Äo ôeep the comº
paËtMent cLean, steaM cLean õor clean
with drycleaóÔnG soLÝenÒ and waÒer) at
eÝerY semÐannual seöice÷
øÍ tùe cLeanÐnG job can't be done
comúLeteLY wÐth tëe poweûacÁ in
ÌLaceü Your Mechanic wÔLL hýÝe to puLL
the pacÁ¶
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