Case 590ST - Engine Troubleshooting

8-TROUBLESHOOTING
Engine
PROBLEMPOSSIBLECAUSECORRECTION
Partiallydischargedbatteries.
Check,chargethebatteriesand,if
necessary,replacethem.
Corrodedorlooseconnectionstothe
batteryterminals.
Clean,inspect,tightenthenutsand,
ifnecessary,replacetheexcessively
corrodedterminalsandnuts.
Incorrecttimingoftheinjectionpump
ontheengine.
Correctlytimetheinjectionpumpon
theengine.
Dirtorwateraccumulationsinfuel
lines.
Disconnectthelinesandtheinjection
pumpandcarefullycleanthem;if
necessary,cleananddrythefuel
tank.
Nofuelinthetank.
Fillthetank.
Nosupplytotheinjectionpump.
Checkand,ifnecessary,replacethe
supplypump.
Airinthefuelsystem.Checkthelines,thettings,the
supplypump,theltersandthe
injectionpumpforthepresenceofair,
thenbleedthesystem.
Theenginedoesnotstart.
Damagedstartermotor.Repairorreplacethestartermotor.
Irregulardeliveryofthesupplypump.Checkdeliveryontheworkbench.
Dirtorwateraccumulationsinfuel
lines.
Disconnectthelinesandtheinjection
pumpandcarefullycleanthem;if
necessary,cleananddrythefuel
tank.
Restrictedfuellters.Replacetheltercartridges.
Burnedorcrackedvalves.Replacethevalves.
Airinthefuelsystem.Checkthelines,thettings,the
supplypump,theltersandthe
injectionpumpforthepresenceofair,
thenbleedthesystem.
Theenginestops.
Damagedinjectionpumpcontrols.Replacethedamagedparts.
8-2