MAINTENANCE
UNUSUAL
5.Specialattentionmustbegiventothe
hydraulicoilduringverycoidweather.
CAUTlON
BEFOREattemptinganyworking
operations,warmupthehydraulicoil
asdescribedinÌPre‑OperationWarm‑
Uponpage45".
6.Attheendoftheworkperiod,or
wheneverthemachineistobeleftidlefor3.
extendedperiods,preventitfrombeing
frozentothegroundbyparkingiton
wood,concrete,asphaItormatsurface.
solutionofethyleneglycoI)anda
corrosioninhibitor.
■ExtremeHeat
A「lowtheenglnetocoolbeforedrainlng
andflushlngthecoolingsystem.
Watercontainingmorethansmall
concentrationsofsaltormineralsshould
notbeusedinthecoolingsystem.Salt
facilitatescorrosionandmineralsdeposit
onthecoo]antpassagewa[is.
Bothprocessesinhibitpropercooling.
Increasedevaporationrateswi[lcause
thebatteryelectrolyte[eve[tofa"more
rapldlyduringveryhotweather.Check
theleveIfrequentlyandadddistil]ed
waterasrequiredtomaintaintheproper
level.
Likeextremecold,extremeheatrequires4.
thatprecautionsbetakenwithrespecttothe
coolingsystem,thebatteryandlubrication.
Protectthemachinebyperformingthe
fo口owingrecommendedprocedures:
1.Hightemperaturesnecessitatetheuseof
[ubricantswhicharebothmoreviscous
andwhichreslstdeteriorationathigher
operatingtemperatures.Refertothe
LubricationSectionandIubricatethe
machineuslngthelubricants
recommendedfortheexpected
temperatures.
Crankcaseo闘isparticularlyimportant
becauseithelpsdissipateheat、Check
theoi]levelfrequentlyandaddoilas
requiredtomalntainrequlredIevel.Too
Iittieoilwilihinderheatdissipation.
2.Toensurepropercoolantcirculation,
drainandflushthecoohngsystem,c[ean
anyforeignmatterfromtheradiator
coo]ingfinsandthrough‑coreair
passages,rep]acedefectivehoses,
tightenhoseclamps,tensionthewater
pumpdrivebeltproper[y,eliminateany
IeaksdetectedandfiI]thesystemwitha
50%solutionofethyleneglyco!.
Acorrosioninhibitorisrecommended,
Engineoverheatingduetolossofcoolant
wilimosto杜enbecorrectedbySLOWLY
addingcoolantwhi]etheengineis
runningatFASTIDLE.Shou[dthisfailto
correcttheproblem,drainandf[ushthe
systemandrefi[lwithfreshcoolant(50%
Aircirculationaroundtheengineand
batterymustnotberestricted.Keepair
intakeandexhaustopeningsclearof
]eaves,paperorotherforeignmatter
whichmayrestrictairflow.
5.Keeptheenginecleanofdlrt,greaseand
othersubstanceswhichinhibitheat
dissipation.
6.Operateengineatful]throttlewhen
diggingortrackingmachine.
Runtheengineonlywhenengagedin
workoperationsorwhentrave[ingthe
machine.
Avoidprolongedperiodsatidleandshut
theenginedownifoperationsare
jnterrupted.
■SandyorDustyWorkSites
Thepresenceoflargeamountsofsandor
dustattheworksitecancontributeto
acceleratedcomponentweather.Either
substancewi[Iactasanabrasivewhen
depositedonmovingpartsofthemachine.
Thisproblemcanbeal[eviatedby
Increasingthescheduleofjubrlcationand
byservicingbreathersandfiltersatmore
frequentinteハ!als.
Fo[[owtherecommendationsbelowwhen
operatinginsandordustonaregu]ar
bases.
4‑28