Paccar PX-9 - Tips for Operation on Grades with Dry Pavement

OPERATINGINSTRUCTIONS
WARNING!
DONOTuseanenginebrake
whendrivingbobtailorwithanun-
loadedtrailer.Theremaynotbe
enoughweightontherearaxleto
providetraction.Thiscouldcause
alossofcontrolandjackknifere-
sultinginaninjuryaccident.Make
suretheenginebrakeisswitched
“OFF”whenbobtailingorwithan
unloadedtrailer.Failuretocom-
plymayresultindeath,personal
injury,equipmentorpropertydam-
age.
Toreducevehiclespeed,putthe
enginebrake“ON/OFF”switchinthe
“ON”position.Removeyourfootfrom
theacceleratorpedalandclutchpedal.
Theenginebrakeswillimmediately
begintooperate,slowingthevehicle.
Foroperationondryandrelativelyat
surfaces,whengreaterretardingpower
isnotrequired,putthetwo-position
selectorswitchinthe“LOW”position.
Foroperationondrypavementwhen
maximumretardingpowerisrequired,
putthetwo-positionselectorswitchin
the“HI”position.
TipsforOperationonGrades
withDryPavement
WARNING!
Theenginebrakeisnotintended
astheprimarybrakeforthevehi-
cle,norisitanemergencybrake.
Theservicebrakesmustbeused
inanemergency.Relyingsolelyon
theenginebraketostopthevehi-
cleinanemergencycouldcause
anaccidentandleadtopersonal
injury.Theenginebrakeonlyhelps
theservicebrakesbyusingpres-
suretoslowthedrivetrain.You
mustusetheservicebrakesfor
quickoremergencystops.Failure
tocomplymayresultindeath,per-
sonalinjury,equipmentorproperty
damage.
“Controlspeed”isthespeedatwhich
theforcespushingavehicledowna
gradeareequaltotheforcesholding
itback.
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14Y53-1185-1B1(12/2014)
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