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Keepenginespeedlowuntiltheengineoil
pressurewamingiamp90esout.lfitdoesnot
gooutwithin10seconds,stoptheengineand
investigatethecausebeforestartingagain.
FaiIuretodoso,cancauseenginedamage.
1.AllowtheenginetowarmupatLOW]DLE
foratIeastfiveminutes.Engageand
disengagetheimplementcontrolstohe[p
speedwarmupofhydrauIiccomponents.
!CAUTlON
*Thehydrauliccontrdva]vemaybecome
overheatedifthedumpisoperated
continuouslyunderreliefconditions.
*OperatethecontroIvalvefor10to15
secondsandthenreturnthecontroIIeverto
theHOLDpositionforfivetotenseconds.
2.TowarmupthehydraulicoH,movetheengine
throttlelevertomediumenginespeed.Run
theengineforaboutfiveminuteswhile
intermittentIyholdingthedumpcontrolIeverin
thedump]owerposition.
3.Turntheenginethro廿leievertothe
maximumenginesρeed.Runtheenglnefor
anadditionalfiveminuteswhileintermittently
holdingthedumpcontrolIeverinthedump
Iowerposition.
Incaseofthenewmachine,asthesevere
operationfromthebeginningwlIlhaveabad
infIuenceuponthemachinelife,performthe
enoughbreak‑inoperationasdescribedthe
righttable.
OPERATlON
3‑6AFTERSTARTINGTHEENGINE
CAUTION
3‑7
BREAK‑IN"OPERATION
ThiswilIaIbwtheoiItoreachrelief
pressure,whlchcausesittowarm
morerapidly.
CycleaIlcontrolstoa目owwarmoil
tocircuiatethroughcylindersand
Iines.
4.Obsen!ethegaugesandindicators
frequentlyduringtheoperation.
C o o l a n t g a u g e 臨 t o 「 純 正 藪 β 團 團 國 團 竃 β
temperature
①Dumplever
Lower
易
HourmeterLoad
Upto10hoursAbout60%Ioad
Upto50hoursAbout80%Ioad
After50hoursFuIIIoad
3‑18
OO
00
1蕊
4,獣
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