PS Magazine - TB 43-PS-424
PS, The Preventative Maintenance Monthly
ISSUE 424
MARCH 1988
-±·
Keep speEd down. High speed
I
'
,
:
"±
over rouG grOund D the font
²
"
,
I
,
tr
F
ac
1
and idlers± It knocks them out
'
o
Me, too±
I
.
²
Never park your dozer on the side
'-
-
a hlL± causes sea±s
on the Roller seals ±³ ± and oil leaks
i
± -
Park
³
ng oveRniGht on
oF a
hl
ove´ght± That puµ a s¶ain
-
to ±ose TheIR shape
out³ It·s also unsa¸!
[
Next day, it·ll ¹ake a while beºre the seals get Back
³
to the
³
r»ght s¼aP± ½ean¾
while, you·ll lose more oil± ¿ollers oÀy hold aBout a pMt± WÁthout
mL,
the roller
grinds itselF up in a ¸w hours±
i
Stop your tractoÂÃ in it
t±
beºre you shiÄ in or out oF reverse± ShiÄing into
·
reverse onÅtheÆmove puts extra
stress on the tÇansmission gear³
Èack up slowly³ Working in
reverse puts pins and bush»ngs
unÉer ¹heir gÇeatest strain± High
speed reverse just means Êster
(!±·
:
Z!
±
I
²³´µ
wear ·n· tear³
²
Never take such a deep cut
·
±\ i²dl
T
the Ëck sÌ
s slipping³ T
Í
²³´
µ
¶·
.¸¹º»
:¼½
¾¿ÀÀÁÂ
ÃÄ
much down pressure on the blade raises the Îont oF thÏ track
of
ÐÑe ground³ AL
the ºrce is on tÒe rear and tÒe tracÓ starts spÔÕng± Slipping track wears shÖs Fast!
×ot a big joB Øat cÙÚs ºr constant right¾ or leÄÅhand tUÛs? Th»s wears one track
_
Êster than the other³ Change your patteÛ now and then ºr balancÜ track wear³
07F
±± ²
Cat Fan Belts
The VÅbelt set you need depends on whether your tractor has a generator or
an alteÛatorÝnot whether it has a ripper or a winch, as the "Þsable ßn àodeá
in T½ 5Å24â0¾233ã20ä tells you± Þse matched VÅålt
æ
set, NSN 3030ÅçÆ484Å32â9,
ºr a tractor with an alteÛator or NSN 3030¾ç¾èâ7¾âè52 ºr a tractor with a
generator±
RepLacement Hose
NSN è720é0âÅ229Å602 gets a rubber hose that connects the transmission pump
and oil cooler êlter on the ë7ì tractor± íhis hose replaces the metal tUbe and
rubber hose shown as Items 5 and â8 in ìig 5è oF T½ 5¾2èâ0î233ï20ä±
52
MAR 88
ðñ³ ¹Òat·s just wÒat you can get when
You blow down the receiverÅseparator
oò your Ió¿ 250ôàì½ comõressor³
TÒe blowdown valve·s opening is
ö÷ntø ou¹Ýùwúd youûn the üeiverý
seõarator³ WÒen you open it to release
õþessureÿ the releasø aiÇ blows ÉustĀ ÉiÇāĂ
and cþud all oveþă even in your Ące³
ąut your mecÒanic can cÒange alĆ that
by cÒangiòg ¹he direction oF the oPòing
oò ¹he blowdown vaĆve±
Herećs Òow:
Ĉe¹ ¹Òe au¹oĉa¹ic blowdown vaĆve
þeliEve õþessure Ċom the sYstem±
CARefu±±y open
tHe mAnuAL va±ve
to ·ReLease aNy
trapped pRessuRe.
Keep youR face
and baRe skIn
away fRom
the openING!
¿ċmove Øe vČve čm the elĎw uďing
a pipe wrench, NSN 5â20ÆçĐ227óâ4đâ,
fom the No³ â àommon shop set±
Þnscrew the elbow fom the piP±
W²p a ³oupLe of ±aye´ of
ANtIµs¶eze tape, ¸S¸
8³3³-´µ
889¶35¸¹
on the thReads oN
the stRa¶Ght p¶pe and on the
expOed thReads on the e±bow
S³Rew the eLbow onto the p¶pe
hAnd t¶ght¹ Use the wRen³h to
º¶GhteN the eLbow untI± It po¶Nts
away fRoM the dooR
S³rew thE vA±ve onto the e±bow
aNd t¶GhteN It» ¼Ake sure the
³ontRoL hAnd±e's oN top
Now when you blow down Øe sysĒm,
the air ēon·t blow on you±
MAR 88
53
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