Case 621G - Page 220

7-MAINTENANCE
Fuel
Usedieselfuelsuitablefortheambienttemperaturecon-
ditions(ASTM-D-975).
UsefuelwhichistoASTM(AmericanSocietyforTesting
andMaterials)D975standard.
UsegradeNo.2fuel.Theuseofothertypesoffuelcan
resultinalossofpoweroftheengineandmaycausehigh
fuelconsumption.
Inverylowambienttemperatures,useamixtureoffuels
No.1andNo.2asnecessary.Consultyourfuelsupplier
forappropriatefuelsupply.
Ifthetemperaturefallsbelowthefuelcloudpoint(point
atwhichwaxbeginstoform)thewaxcrystalswillcause
powerlossorwillpreventtheenginefromstarting.
Incoldweather,llthefueltankattheendoftheday's
workinordertopreventtheformationofcondensation.
Fuelstorage
Prolongedstorageoffuelcanleadtotheaccumulationof
impuritiesandcondensationinthefuel.Enginetrouble
canoftenbetracedtothepresenceofwaterinthefuel.
Thestoragetankmustbeplacedoutsideandthetemper-
atureofthefuelshouldbekeptaslowaspossible.Drain
offwaterandimpuritiesregularly.
Hydraulicuid
CASEAKCELAHYDRAULICEXCAVATORFLUID
meetstheCNHmaterialspecicationMAT3509andis
specicallydesignedforhighpressureapplicationsand
forCASECONSTRUCTIONhydraulicsystems.Your
CASECONSTRUCTIONdealercanprovidehydraulic
uidtofullldifferentclimate/temperatureconditions.
Refertothechartsatthebeginningofthissection.
7-12