Peterbilt 348 2017 - Operating the Transmission

OPERATINGTHETRANSMISSION
OPERATINGTHE
TRANSMISSION
Introduction
YourMediumDutyisequipped
witheitheramanualorautomatic
transmissionwithspecialfeatures
andgearingtomeetyourparticular
needs.Itisimportantforyou,the
driver,tounderstandhowyour
particulartransmissionisoperated.
Todothis,youhavetwosourcesof
information:thisOperator'sManual
andthetransmissionmanufacturer's
Driver/Operator'sInstructionManual.
Becauseofthevarietyofdifferent
transmissionsinstalledinMedium
Dutyvehicles,operatingprocedures
foryourparticulartransmissionare
notincludedinthismanual;therefore,
youshouldreadandunderstandboth
manuals.Readthegeneralguidelines
andinstructionsthatfollowandread
thespecicinstructionscontained
inthetransmissionmanufacturer's
manualthatisincludedwithyour
vehicle.
NOTE
Youwillndashiftpatterndiagram
inthecab.Checktobesureyou
knowthecorrectsequenceforyour
particulartransmission.
OperatingManual
Transmissions
6,9,10,and11–SpeedManual
The6–speedsynchronizedmanual
transmissionhas6forwardspeedsand
1reverse.The9–speedtransmission
has9forwardand2reversespeeds,
consistingofa5–speedlowrange
sectionanda4–speedhighrange
section.
Forspecicinstructionson
operatingoneoftheoptional10-
or11-speedtransmissions,consult
thetransmissionmanufacturer’s
Driver/OperatorInstructionManual.
4-14Y53-6060-1C1(03/17)
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