IHI IC70-2 Operation Manual page 83

∠MAINTENANCE2YEARs
ロRadiatorexteriorcleaning
Whentheradiatorcoreisc]ogged,thecoolingair
flowisinterruptedbweringthecoolingefficiency.
Cleantheradiatorwithasteamorapressurized
waterat500hoursintervaI.Whenevertheradiator
isfoundtobeclosed,cleanitatanytime.
睡Selectionofcoolant
Long‑Life‑Coolant(LLC)issupPliedtothis
machinebeforeshipment.
Thisisacoolantprovidedwithpropertiesof
antifreeze,corrosion‑proofandfouIing‑proof.
ltsbnglastingeffectswi
freefromcoolantexchangefor2yearsthrough
summerandwinterseasons.
TheLong‑Life‑CooIantisthereforerecommended
forusewiththismachinewhenexchangingits
coolant,
■MixingRateofLong‑Life‑Coolant
ThemixingratioofLong‑Life‑Coolantwithwater
determinesthefreezingpoint.
SeIectthemixingratioforafreezingpointIower
by5。Cthantheexpectedlowestatmospheric
temperature.
Norma][y,theLong‑Life‑Coolantisusedundera
mixingratioof30to50%.
Ifthemixingratioislessthan30%,occurrenceof
rustisfearedandwhenitisover50%,
overheatingisfearedandseaIingcomponents
maybedeterioratedquickerthanusua1.
Meanwhlle,usecitywatertomixwithLong‑Life‑
Coolant
FreezingPoint(。C)一15一25一35
Mixingration(%)304050
QuantityofLLC(L)7.49.812.3
Quantityofwater(L)17.144.712.2
C o o l a n t T o t a l a m o u n t 1 2 4 . 5 L E n g i n e p r o p e r : 1 3 L R a d i a t o r a n d o t h e r s p r o p e r : 1 0 . O L T a n k : 1 . 5 L
maintainthemachine
4‑21