Wacker Neuson 50Z3 User Manual

BA 50Z3/6003 en – Edition 4.3 * 5003b410.fm 4-7
Troubleshooting
9
Overspeed
Wiring harness error
Check and replace the malfunc-
tioning component
Engine runs at overspeed
Reduce engine speed and brake
the machine
Internal ECU error Contact an authorized workshop
1-7
Fuel injection pump
regulator relay
Loose connector Tighten the connector
Malfunctioning fuel injection pump Contact an authorized workshop
Internal ECU error Contact an authorized workshop
Wiring harness error
Check and replace the malfunc-
tioning component
1-5
Start relay
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning start relay Replace the start relay
Internal ECU error Contact an authorized workshop
1-4
Cold starter
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning cold starter solenoid valve Contact an authorized workshop
Internal ECU error Contact an authorized workshop
1-3
Exhaust gas recircula-
tion valve
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning stepping motor of exhaust gas
recirculation valve
Contact an authorized workshop
Internal ECU error Contact an authorized workshop
2-1
Oil pressure
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning oil pressure switch Replace the oil pressure switch
Internal ECU error Contact an authorized workshop
3-3
Coolant temperature
Overheated engine Let the engine cool down
Coolant level too low Add coolant
Malfunctioning engine cooling system Check the engine cooling system
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning coolant temperature sensor Replace the sensor
Internal ECU error Contact an authorized workshop

Wacker Neuson 50Z3 Specifications

General

Brand	Wacker Neuson
Model	50Z3
Category	Excavators
Language	English