Komatsu ecot3 PC300LC-8 Shop Manual page 841

Hydraulic excavator
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HYDRAULIC EXCAVATOR
PC300-8
PC300LC-8
PC350-8
PC350LC-8
Machine model
PC300-8
PC300LC-8
PC350-8
PC350LC-8
40 Troubleshooting
Troubleshooting of engine (S-mode)
Method of using troubleshooting chart............................................................................................................ 3
S-1 Starting performance is poor .................................................................................................................... 6
S-2 Engine does not start ............................................................................................................................... 7
S-3 Engine does not pick up smoothly.......................................................................................................... 10
S-4 Engine stops during operations ...............................................................................................................11
S-5 Engine does not rotate smoothly ............................................................................................................ 12
S-6 Engine lacks output (or lacks power) ..................................................................................................... 13
S-7 Exhaust smoke is black (incomplete combustion).................................................................................. 14
S-8 Oil consumption is excessive (or exhaust smoke is blue) ...................................................................... 15
S-9 Oil becomes contaminated quickly ......................................................................................................... 16
S-10 Fuel consumption is excessive............................................................................................................. 17
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down) ................................................... 18
S-12 Oil pressure drops ................................................................................................................................ 19
S-13 Oil level rises (Entry of coolant or fuel)................................................................................................. 20
S-14 Coolant temperature becomes too high (overheating) ......................................................................... 21
S-15 Abnormal noise is made....................................................................................................................... 22
PC300, 350-8
Serial number
60001 and up
60001 and up
60001 and up
60001 and up
1SHOP MANUAL
SEN02634-02
1
1

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