PS Magazine - MAY 1984
PS, The Preventative Maintenance Monthly
ISSUE 378
MAY 1984
.]
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M³02
Towed How±ters .²³
Go Slow Cross-Country
The
mL´µ
is very ligHt-and top±Heavy. It w²Ll fl²p oVeR ²n rougH terra²q wHen
you're going as slow as
5
MP³. WHen ²´ fl²ps, s²gHt mounts get bµoken, tw²sted
and rU²neD¶ THe breec·block Handle gets bent or broken.
SlOW DOWn--
´-µavE µ¶gh· mOun·µ
anD bREEchblOck
hanDlE
So, keep youµ speeD down ¸Hen the go²ng gets roug·. StAy away Fom s²deH²ll
¹
µoutes. Go upH²ll or down·²ll wHen poss²BLe. º vo²d d²tcHes and gullies-¸H²cH
means use a ground gu²de at n²gH´ wHen
,
{;
7
you 're traveling ²n blackout conDit²oNs.
·± ²
(
, ¸
¹º'
ºlso, make sure tHe Junette ²s in the
r²gHt pos²tion »µ t·e pµ²me mover be²ng
used. CHeck ou´ TM
9-¶´·5-µ34-¸´
»µ
tHe ²nfo.
CoMBA» Ve¼±½Le¾ ¿À¿
WaTch ³haT ´ension
"k
³
.´
µ} .
Met¼l expands and con´µacts w²½H tHe ups and downs O¾ te¿peµatuµe. WÀen
²t's Hot, tracK paµts expand and tHe track µUns looser. WHen ²t's
Á
cOLd, tµack paµts
conµact and track µuns t²gHteÃ, a´ least unt²l ²´ gets stretcHed ²n use.
If you t²gÀten youµ tµack past ²ts tens²on l²m²ts in tHe summeµ, ²t'll µealLy Be
t²g·t ²n tHe w²nter. ÄHat's jus´ a la¸ of natuµe. THa´ t²gHt tµack can cause Hull
damage (ben´ roaDarms, Bent µolLer arms, etc.) and w²lL wear out too soon.
You also need to µememBer tHat ²f you don't t²gHten tµÅck enougH ²nÆtHe w²nter,
it'LL be so loose ²n t·e summeµ tHat ²t'll come oÇ real easy.
ÄHe secre´ is to t²g·ten to tHe l²m²t, and no moµe or less.
20
MAY 84
³ea´ ²s ´He B²ggest cause O¾ damage to mov²ng paµts. ºn fEÈ parts move
Ésteµ ´Han ´He BLades o¾ a ʵBËcHaµgeµ. ̲L takes caµe of tHe Hea´ pµoBLem,
But onLy as Long as tÍe eng²ne ²s µunn²ng. ÄHa´Îs wHy turbochaµged eng²nes ²n
ϼÐKs, self±pµopelLed Ho¸²tzeµs, peµsonnel caµr²eµs oµ otHeµ comBat veH²cles
need ´o ²dLe Befѵe sHu´down.
º´ ÒLl speed, tHe ´urBO on yOuµ veH²cle can sp²Ð at up tO
¹´´,´´´
ÓPM. If
yOu sHutdown Qu²ckly, tHat tuµBo must sp²n ´o a Ôtop, wH²cÀ can take up to
9´
seconds oµ moµe, w²tHout any o²l be²ng fѵced ²nto ²t.
Äe¿Õeraʵes ²ns²Öe tÀe ÏurBO can µeacÀ
¹, º´´°F»
THat means damage to Beaµ×
²ngs and smOotH suµÉces.
ºt ²dle, tHe ´uµbo sp²ns aBout
·´,´´´-¼5,´´´
ÓPM. Temperatuµes ²ns²de are
abou´
3´´°F½
SHutdown tHen means tHe ʵBo sÕ²ns w²tHout o²Ø »µ a sHOµ´ enougH
t²¿e tHat ´Here ²s l²t´Le Àeat damage. I´ doesn't aÇect ´He ÙÙl²Úspan'' Of tHe tUµBo.
So±0±0±0, tHe nex´ t²me yOu'µe temp´ed ´o sÀu´ down anD µun to make an
eaµLy da´e, µeÛemBeµ tHa´ ·aµdÜwork²ng, oveµHea´ed turBo.
Ýet your eng²ne ²dle fѵ aBout
¾
m²nutes Befoµe sHutdown. Ähat way, ²t'lL
be µeady ´·e next t²me you crank uÕ ´o go.
MAY ±
21
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