PS Magazine - MARCH 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 232
MARCH 1972
TIRE ANO BrAKE DRUMS
-
After giving your vehicle a good workout, feel the
brake drums .and tiRes±
A
tire hotTer than the otheRs is either under-inflated or has
weak sidewaLls²
-±A
HOT BRaKE
PrUM WIth ±
CoL² [³um ´N µ¶e
·¸¹º» ¼n½ ¾F ¿ÀÁ
SÂÃÄ ÅXlÆ ÇÈÉÊs
"ËÌÍbÎÏ
.±²
ÐikÑ ÒiÓ
ÔÕ wÖ×ØÙ
cÚÛÜÖÝÞßàáâãä.
plugs and if you
find contamination, move the vehicLe un³
tiL the pLug is on thE bottom to drain the
br´ke cavity± µhen clean and repack
wheel bearings the way it says in Note 5
to your ¶O±
(NOµ·: A leaking seal or 0-¸ing¹beº
cause of overfilled power steering»can
work through vent Lines to contaminate
b¼akes±)
Air rEsErVo±r²
Moisture in the air will condense in your air reservoirs± µo get
the Water out do this DiLy When vehicle's shutdown at the end of the day½
l²
4
3å
With the pressuRIzat±on valVe in COM
-
PONENTS position, open the dRAin
cock on the aiR tRap (on tHe Left² ReAR³
loweR cab coRneR) and DRain off any
accumuLa´eµ wateR oR oiL.
:³.´ ,µ¶·L
CLose the dRain cock anD RetURn
p¶es·uRization contRol to OFF posi¸ion¹
(Make suRe the handLe goes back in
º
¹)
ALCoHoL VAP³r´ZeR
µk¶p
your al¾
cohol
vaporizer
bottle
filLed
duri¿g
freezing
or
near-freezing
wÀather±
ItÁs
under the pasSenger's seat in the cab, or
it may be located on the engine heater in
the cab
Side
wall
near
the
front± Use
methyl alcohol O-·-76Â Ã16Â2)± µhe vaÄ
porizer keepS water from freezing in the
air system±
Åf
the
air
brakes
Lock-up on the t¼aiLº
er
you
a¼e
Cowing
with
your XM757,
it is a sign your tracº
to¼ air SyStem is in
big
tRouble±
Æould
be an empty alcohoL
into your air heater ducts and ruSt the terÇ
CAB d³³· Lc
²
µhe on
æ
y thing
worse than not being able to cLose your
cab doÈr is having the door come open
when you donÉt want it to± You can cure
both problems by Getting the plain nut
on the door latch tightened untiL the door
latch works smoothly± Once you geÊ iC right,
tighten down the cap nut over it So the
minals on the heaterË Æheck the ducts
sElF¸ADJUst±NG B·A¹Es
-
Your
from time to time and if theyÉre loaded
M656 brakes adjust in reverSe like some
With water get it out±
civilian cars± However, after the brakes
clean the inside of the cÌb with a high³
pressure hose± Ío hold your hose Low and
run it SlowË
5
have been taken apart for maintenance,
you may have to appLy the brÎkes 4Â or
5Â times ÃÏWith the truck moving¹) be³
fore they work without causing an exº
treme pressure draw down Chat sets off
the low ai¼ buzzer in
1
or Ð brake appLicaÑ
Back to Top Back to Top
