Case CX490D - Page 261

6-MAINTENANCE
26.Starttheengineandletitrunatlowidlespeedfor
3min.Turnonthecabheatingsystem,andsetthe
temperatureandthefanspeedtothemaximumlevel.
27.GraduallyincreasetheenginespeedtoHposition.
Lettheenginerununtilthecoolanttemperature
reaches90°C.Makesurethatcoolanttemperature
staysat90°Cforsomeminutes.
NOTICE:ifcoolanttemperaturegetsquicklyover90°C,
lowertheenginespeedtolowidle.Stoptheengineand
checkforleakagesfromthehosesofthecoolingsystem.
28.Graduallydecreasetheenginespeedtolowidleand
letitrunfor3min.Stoptheengine.
29.Waituntiltheenginehascooleddown.Slowlyopen
theradiatorcapandcheckforcoolantlevel.Addsome
coolantuptotheedgeofthecoolantinletoftheradi-
ator.
NOTICE:iftoomuchcoolanthastobeaddedatthisstage,
carefullycheckforleakagesintotheenginecoolingsystem.
30.Closetheradiatorcap.
31.Carryoutnalllingofthecoolantreservetankupto
theFULLmark.Closethecapofthereservetank.
NOTICE:thecoolantlevelinthereservetankshallbeal-
waysdoublecheckedthemorningafter.Thecoolingcircuit
maytakesomemoretimetogetstabilized.Ifneeded,ll
thereservetankwithcoolantuptotheFULLmark.Close
thecapofthereservetank.
SMIL19CEX0592AA9
6-67