2
-22
Apr. 2007
DSC48
Symptom
Probable cause
Solution
Insuf
fi
cient Output
• Incorrect injection timing
• Engine's moving parts seem to be seizing
• Uneven
fuel
injection
• Insuf
fi
cient nozzle injection
• Compression
leak
Adjust
Repair or replace
Repair or replace injection pump
Repair or replace nozzle
Replace head gasket, tighten cylinder
head bolt and nut, replace glow plug
and nozzle holder
Excessive Engine Oil
Consumption
• Piston ring's gap facing the same direction
• Worn or stuck oil ring
• Worn piston ring groove
• Worn valve stem and guide
• Worn crankshaft bearing and crankpin bearing
Shift ring gap direction
Replace
Replace piston
Replace
Replace
Fuel Mixed into En-
gine Oil
• Worn injection pump plunger
• Broken fuel delivery pump
Replace pump element or pump
Replace
Water Mixed into
Engine Oil
• Faulty
head
gasket
• Cracked or damaged cylinder block or cylinder
head
Replace
Replace
Low Oil Pressure
• Insuf
fi
cient engine oil
• Oil
fi
lter clogged
• Oil
fi
lter cartridge clogged
• Relief valve stuck with dirt
• Weak or broken relief valve spring
• Excessive oil clearance of crankshaft bearing
• Excessive oil clearance of crank pin bearing
• Excessive oil clearance of rocker arm bushings
• Oil passage clogged
• Improper type of oil
Replenish oil
Clean
Replace
Clean
Replace
Replace
Replace
Replace
Clean
Use the speci
fi
ed type of oil
High Oil Pressure
• Defective oil pump
• Improper type of oil
Repair or replace
Use the speci
fi
ed type of oil
Engine overheating
• Defective relief valve
• Insuf
fi
cient engine oil
• Broken or improperly tensioned fan belt
• Insuf
fi
cient cooling water
• Radiator
net
or
fi
n clogged with dirt
• Corroded radiator inner part
• Cooling
water
fl
ow route corroded
• Defective
radiator
cap
• Damaged
water
pipe
• Defective
water
pump
• Running at overload
• Defective
head
gasket
• Incorrect
injection
timing
• Unsuitable fuel used
Replace
Replenish
Replace or adjust
Replenish
Clean
Clean or replace
Clean or replace
Replace
Replace
Replace
Lessen load
Replace
Adjust
Use the speci
fi
ed fuel
Battery Quickly Dis-
charge
• Insuf
fi
cient battery electrolyte
• Fan
belt
slips
• Open
circuit
• Defective
regulator
• Defective
battery
Replenish distilled water and recharge
Adjust belt tension or replace
Connect
Replace
Replace
Содержание DSC48
Страница 1: ...DSC48 COMBINE HARVESTER WORKSHOP MANUAL...
Страница 2: ......
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Страница 8: ......
Страница 38: ...MEMO...
Страница 40: ......
Страница 106: ......
Страница 136: ...MEMO...
Страница 138: ......
Страница 140: ......
Страница 160: ...MEMO...
Страница 162: ......
Страница 196: ...MEMO...
Страница 198: ......
Страница 216: ......
Страница 251: ...Apr 2007 7 11 DSC48 2 3 WIRING DIAGRAM 417W717A...
Страница 262: ...7 22 Apr 2007 DSC48 4 3 WIRING DIAGRAM 417W723A...
Страница 281: ...417W758B B ON GND B GND 7 2 CIRCUIT DIAGRAM Apr 2007 7 41 DSC48...
Страница 282: ......
Страница 285: ...DSC48 INDEX...