PS Magazine - JULY 1984
PS, The Preventative Maintenance Monthly
ISSUE 380
JULY 1984
!
I
'1±²
21±-, 5²Ton
trucks .³´
r
you're fssy-like you
be±when you check the Fluid level in
your brake master cylinder. You clean
the top oF the cylinder careFully so dirt
won't get in when you open it.
That's good!
But what about the ²oor-right above
the master cylinder±where there's
always
lots
oF
dirt .³³ and
maybe
water .´. and maybe other juN you
don't want in the master cylinder?
·
Get the message? BeµRe you liFt that
Floor access dooR, clean the door and
the ¶loor aroUnd it-real good.
M872 µrailerS ³³³
And, when you've got the master
cylinder open, cover it iF you need to
go get brake ²uid.
Even a tiny bit oF diRt in your master
cylinder can lead to brake trouble!
You're Flirting with trouble iF containeRs aren't ·stened down securely!
The ¸ooRing on some M872 s¹mitRºilers has bent »ad enough so 35¼ and 40½Ft
containers won't sit ¶lush. WoRse,
F
pins that secure containers can't be install¾
ed right-yoU could lose your load!
Check your tRailer. IF there's an obvious bend toward the Front oF the bed,
report it. ¿ore impoRtant, iF you can't secure 35¼ and 40½Ft containers, don't
haul themÀ There's no problem with other cargo, like 20¼Ácontainers, as long
as the
F
pins are locked in place.
TACOM Msg DÂSTA¼MVA
l l
1530Z Oct 83 tells your unit how to report
bent trailers.
6
JUL 84
I
-
M809/M39¶·erieS 5¸µON µruckS ¹³º
Steer CleaR of Trouble
Steering ·ilure ià a sure thing iF you
don't keep your ey
e
s pÄeled For loose
steering gear mounting haRdware. This
goes For the ÅÆrews on M809 and conÇ
verted M39¼series trucks Ènd the nuts
oÉ unmodÊFied M39½series trucks.
To check FËr loose screws on youR
M809 and Ì39 converted trucks, pÍt
your transmission in ÎEÏTÂAL and
your handbRake OÎ. Get someone to
turn the steering wheel back and µrth
while you eyeball the steering gear
bracket. IF it wiggles or wobbles, it's
loose. Send the truck to DS.
M809¸·erieS 5»µoN TruckS ³¼½
if
this par movEs,
gEt youR suppoRT on it
Head oÐ trouble by checking the 4
lower nuts on the unmodiÑied Ò39
steering
gear
bRackÓt.
Shiny
S
pots
around the nuts or tÔe bRacket sÕow
they'Re loose. Get youR mechanic to
tÖrque bRacket nuts
±
o 140½×70 lbØFt.
The Seat of the Problem
Engine ÙnniÚg a lÛttle
Rough? Could
b
the
squarÜ washer, ÎSÎ
5310½ÝÞ20¼8ßà, on
á
âhe ãel älter is not såted
squarely. IF so, air
c
be
sucked into the ãel
sysæm and cçuse rough
engine oPration.
Check it out and make
iÚ the square r¹èess on
the top oF ée äêter.
JUL ±
Back to Top Back to Top
