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Engine fires unevenly
Cause
Corrective action
Engine, fluids and lubricants too
cold
u
Preheat engine with plant auxiliaries
Injector defective
u
Check, replace as necessary (→ Page 177)
Engine wiring defective
u
Air in fuel system
u
Engine governor defective
u
Contact Service
Engine does not reach rated speed
Cause
Corrective action
Fuel prefilter clogged
u
Replace (→ manufacturer's documentation)
Fuel filter clogged
u
Replace (→ Page 185) (→ manufacturer's documentation)
Additional fuel filter clogged
u
Replace (→ Page 190)
Air filter clogged
u
Check, replace as necessary (→ manufacturer's documentation)
Injector defective
u
Check, replace as necessary (→ Page 177)
Engine wiring defective
u
Engine overloaded
u
Contact Service.
Speed demand setting does not
match rated speed
u
Correct speed demand setting
Engine alarm involving power
reduction signaled
u
Rectify cause of engine alarm
Rated speed limited by the plant
u
Check plant parameter settings and correct as necessary
Engine speed not steady
Cause
Corrective action
Injector defective
u
Check, replace as necessary (→ Page 177)
Speed transmitter defective
u
Contact Service
Air in fuel system
u
Engine governor defective
u
Contact Service
High load fluctuations, e.g. by
consumers attached to auxiliary
PTOs
1. Switch off consumers
2. Contact Service
Charge air temperature too high
Cause
Corrective action
Incorrect coolant concentration
u
Check (→ MTU test kit)
Intercooler clogged
u
Contact Service
EGR cooler clogged
u
Contact Service
Engine room: Air-intake
temperature too high
u
Check fans and air supply/exhaust ducts
MS15041/03E 2018-08
| Troubleshooting | 79
TIM-ID: 0000055520 - 003
Summary of Contents for 12V4000C*5 series
Page 1: ...Operating Instructions Diesel engine 12V4000Cx5 16V4000Cx5 MS15041 03E...
Page 3: ......
Page 4: ......
Page 46: ...1 B13 Crankskaft speed 44 General Information MS15041 03E 2018 08 TIM ID 0000063565 001...
Page 196: ...1 Bypass flap 194 Exhaust Gas Recirculation MS15041 03E 2018 08 TIM ID 0000063475 002...
Page 264: ...262 Manufacturer s Documentation MS15041 03E 2018 08...
Page 266: ...264 Manufacturer s Documentation MS15041 03E 2018 08 TIM ID 0000098598 001...
Page 267: ...MS15041 03E 2018 08 Manufacturer s Documentation 265 TIM ID 0000098598 001...
Page 268: ...266 Manufacturer s Documentation MS15041 03E 2018 08 TIM ID 0000098598 001...
Page 269: ...MS15041 03E 2018 08 Manufacturer s Documentation 267 TIM ID 0000098598 001...
Page 270: ...268 Manufacturer s Documentation MS15041 03E 2018 08 TIM ID 0000098598 001...
Page 271: ...MS15041 03E 2018 08 Manufacturer s Documentation 269 TIM ID 0000098598 001...
Page 272: ...270 Manufacturer s Documentation MS15041 03E 2018 08 TIM ID 0000098598 001...
Page 273: ...MS15041 03E 2018 08 Manufacturer s Documentation 271 TIM ID 0000098598 001...
Page 274: ...272 Manufacturer s Documentation MS15041 03E 2018 08 TIM ID 0000098598 001...
Page 275: ...MS15041 03E 2018 08 Manufacturer s Documentation 273 TIM ID 0000098598 001...
Page 276: ...274 Manufacturer s Documentation MS15041 03E 2018 08 TIM ID 0000098598 001...
Page 288: ...286 Manufacturer s Documentation MS15041 03E 2018 08 TIM ID 0000083486 002...