PS Magazine - FEBRUARY 1986
PS, The Preventative Maintenance Monthly
ISSUE 399
FEBRUARY 1986
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M939-Ser²es 5³ton Trucks .´µ
Head Of TransmissIoN Trouble!
Original transmission Mounting hardware is giving trouble-ranging foM Loss
oF transMission ±²uid to loss oF tHe transMission itselF.
³oose´or sHearedµMountiNg boLts are to bLaMe¶
TACO· ¸g A·CP·¹TV·
fJ
Oct 85 gives OrganizationaL ·aintenaºce
tHe OK to instalL iMpro»ed bolts and lock wasHers and Head o¼ a Major support½
leveL job¾
THe Message Includes instructions ¿r iMMediate and perÀodic inspection to
detect Loose or sHeared bolts, leakage oF oil and evidence oF gasket daMage. DS
gets tHe repair job iFtHere're any sHeared bolts or tHere's gasket daMage or Áuid
leakage¾
ÂF tHe probLeMÃs onLy one or More Loose bolts, Org ·aint replaÄes aLL oF tHe
bolts and wasHers, using bolts, ÅSÅ 5305Æ00¹638Æ8920, and locÇ wasHers,
ÅSÅ 5310¹ÈÉÊÆ5033. BoLts are replaceË one at a tÀMe, using 4ÌÍ49 LbÎÏ torque¾
THe ¿ur toÐ bolts can be reacHed tHrougH tHe transMission access door in tHe
cab¶ THe eigHt otHer bolts Äan be reacHed foM undeReatH using tHis Ñbricated
wrencH along witH a torque wrencH:
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¸0¹¸/8" dA
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22
» /2" ¼qUaRE ½R¾vE
m¿4ÀÁ¿ÃÄ ÅolLy ÆÇÈÆ ÉÊË
Protect yoUr traÒsÐortable sHelterÓs
dolly sets wHen youÓre not using tHeM¾
³ower tHeM to tHe groUÒd.
ÔHis retraÄts tHe LÀÏ jacÇ cylÀÒÕer rods
aÒd´
´Protects tHe rods Öo× tHe eleMents
to ÐreveÒt ÄorrosÀoÒ.
ØSoÙves tHe fozeÒ liÚÀÒg jacÇ prob½
le×¾ YoU jusÛ Ðu×p ÓeM up and let tHe
HyÕraUlÀÄ pressUre breaÇ ÓeM loose¾
ØÜsHes tHe HydrÝULÀc ÁuÀÕ bacÇ ÀÒ½
to tHe reservoÀr¾ ÔHÀs leÝves less roo×
¿r aÀr wHÀÄÞ reÕUces coÒdeÒsatÀoÒ ÀÒ
tHe taÒÇß
´TilÛs tHe ÐU×Ð so water àUÒs oá ÀÒâ
steaÕ oã seeÐÀng ÀÒsÀdeä
Ì¿¿7Í
Contact TRuck Welder Fil±er
THereÓs a Òew oÀl ålter base tHatÓs
Used oÒ tÞe welder eÒgÀne oÒ so×e
æ8ç7 ÄoÒtaÄt ×ÝÀÒteÒaÒèe tàUÄÇs¾
éooÇ aÛ tÞe ålter êase oÒ tÞe WÀsèonâ
sëÒ ìG4D eÒgëÒe¾ íã ëtîs PÅ ïì52A Ìð
yoU ÒeeÕ aÒ ÝUÛo×otÀñe¹tyÐe spÀÒÎoÒ
FÀlterò PÅ ïì52S4¾ Get a ÐacÇÝge oã
óUr wëtÞ ÅSÅ 2ô4õÆ0öÍö8÷¹04Ì5ø
ùã tHe bÝse PÅ Às otÞer tÞaÒ ïì52A
i,
Use ålter ÅSÅ 2ô40úû¹çôüÎôý4þ ÿÀsÛeÕ
ÀÒ Ôæ ôÎ4ô40Î42üĀþ4Pø
FEB 86
±3
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