MAINTENANCE
UNUSUAL
4‑11UNUSUALOPERATINGCONDiTIONS
Specialρroblemsinmalntenanceand
operationarecausedbyunusualconditions
suchasextremesinheat,coldandhumidity,
higha仕itude,saltwater,anddustyorsandy
worksites.Whenoperatingundersuch
conditions,speciaiprecautionsmustbe
takentopreventmachinedamage,minimize
wear,andavoidcomponentdeterioration.
属ExtremeCoid
lnρerlodsofextremecold,theproblemsof
freezedamage,inadequatelubricationand
batteryfailuremaybecomeparticularly
troublesome.Withtheonsetofverycold
weatheritisadvisableto"winterize匹1the
コ
machinebyservicingthecoolingsystemand
switchingtothelubricantsrecommendedfor
coldweatherusage.FolIowthe
recommendationsbebwwhenthemachine
mustbeoperatedinverycoldconditions,
1.Topreventfreezedamagetothecoo[ing
systemandcrackingoftheengineblock
orhead,drainand刊ushthecooling
system.
Cleantheradiatorexterior,maklng
ce吐aintheairpassagesthroughthecore
andthecoolingfinsarefreeofforeign
matter.
Refillthecoo[ingsystem,addingan
antifreezesolutionrecommendedbythe
enginemanufacturerinanamountand
strengthapPropriatetotheanticipated
temperatures.Acorrosioninhibitoris
recommended.
Neveruseachromaticbasecorrosion
inhibitorwhenthecooiantcontains
ethyleneglycol.Useon[ynon‑chromatic
baseinhibitors.
lnspectthethermostat,c[amps,
hosesandradiatorcorefor
condition.
Replaceorrepairanycooling
componentfoundtobedefective.
radiator
P「ope「
system
2.Condensationinthefueltank
contaminatesthefue]supplywithwater,
whichcanfreezeinthefueHinesand
blockthefuelfbwtotheenglne.To
minimizethlspossibility,keepthetankas
fu"asispractica!duringcoldweather.
Thismayentailrefillingthetankmore
frequentlythanusual,butthe
inconvenienceissmaI]comparedto
clearingabbckedfuelIine.
lfwatershouldbenoticedinthefueI
supply,drainthetankandrefi]Iitwith
uncontaminatedfue1
3.LubricatethemachinewiththeIubricants
recommendedforcoldweatheroperation
intheLubricationSection,ifnecessa「y,
changetheengineoiIandother
Iubricantsinordertoconformtothe
recommendations,
4.Thebatteryismorelike[ytosustain
freezedamageifnotkeptfu"ycharged
becauseitseIectrolytewillfreezeata
highertemperaturethanthatinafulIy
chargedbattery.Becertainthebatteryis
chargingwhentheengineisrunningand
useanexternalchargertorestorefuII
chargewhenthemachineisnotbeing
operated.
Thebatterycandischargeifsnoworice
shortcircuitstheterminals.Keepthe
batterypostsandcabIeconnectorsclean
anddry.
Removeanycorrosionwithaso]utionof
sodaandwater.
Duringextreme[yco[dweather,itis
advlsabletoremoveandstorethebattery
inaheatedareawhenthemachineisto
remainidleovemightorforanyextended
period.
↑■CAUTION
Wateraddedtothebatterycanfreeze
beforeitmixeswiththeelectrolyte.
Duringverycoldweather,addwaterto
thebatteryjustpriorto,orduring
operatめnofthemachine.lfthe
machineisnottoberun,watermaybe
addedifanexternalchargeris
connectedtothebattery.
4‑27