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109821_0508 28
Low oil pressure
Lack of oil Improper oil High lubricating oil temperature
Oll leakage Wrong selection of Over heat
Large oil consumption. kind and viscosity.
Clogged filter and strainer. Worn bearings and oil pump.
Faulty relief valve.
Lack of power
Incorrect injection pump adjustment. Poor cylinder compression pressure.
Injection nozzle malfunction, Cylinder compression pressure leakage.
lncorrect injection pressure adjustment lntake valve clearance
Incorrect spr
ay condition adjustment.
Nozzle holder misalignment
Insufficient fuel supply to the injection pump Cylinder bore wear
Lack of fuel in tan
k
Insufficient air intake amount
Air mixing in injection pump
Fuel filter clogged Air cleaner clogging
Intake restriction
Governor malfunction.
Incorrect engine control adjustment
Deteriorated governor spring
Excessive fuel consumption
Fuel leakage Too much injection amount Excessive mechanical loads
Injection pump misadjustment.
Damaged packing.
Improper installation or tightening.