PS Magazine - TB 43-PS-491
PS, The Preventative Maintenance Monthly
ISSUE 491
OCTOBER 1993
1
he central tire iNfLaTion sys±em (CIS)
oN these 5-tonners works real sLow in
sub²zero weaTheR. I± ±aKes awhiLe fOr the
±³res to s±abiLiZe a± a selecTed TiRe pres´
suReµ
Besides, Th¶ eLec·ronic conTRo¸ uni±
Keeps bLiNKing iTs ligh±s a± you un±iL ±ire
pRessUre is se± on aLL s³x ±ires¹
It's ±he coLD aiRºaTmospheRic pres´
sURe » ±ha± ¼aUses ±he problem¹ A³r ½n
·he seaLed poR±ion of ±he wheeL valve is
OCT93
13
warmeR Than ±he aiR oUTside¾ ¿is caUses
sLoweR reaction time¹ ÀHe sys±em tÁÂes ±o
inFlate oR defLate The tiRes, bUt the sen´
soÃs caN't get an accÄrate air pressure
reaÅing¹
You can soLve That problem by using
a cRossÆTÇp scRewDriver ±o ·ÈRn oÄT ±Ée
wheeL valve scRew¹ Just
tm
The screw
±hree ±imes coUn±eRclockwise¾ ÀHis heLps
To equaLize ±he a±mospheric pressuÁe
½nsiDe The T½Re¾ ÀÊen TuM the screw Ëack
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