Multiquip MQP20P manual Troubleshooting Generator

Page 36

Troubleshooting (Generator)

Troubleshooting (Generator)

Symptom

Possible Problem

Solution

 

 

 

 

AC Voltmeter defective?

Check output voltage using a voltmeter.

 

 

 

 

Is wiring connection loose?

Check wiring and repair.

 

 

 

No Voltage Output

Is voltage regulator defective?

Replace if necessary.

 

 

 

 

Defective Rotating Rectifier?

Check and replace.

 

 

 

 

Defective Exciter Field?

Check and replace.

 

 

 

 

Is engine speed correct?

Turn engine throttle lever to “High”.

 

 

 

Low Voltage Output

Is wiring connections loose?

Check wiring and repair.

 

 

 

 

Defective AVR?

Replace if necessary.

 

 

 

High Voltage Output

Is wiring connections loose?

Check wiring and repair.

 

 

Defective AVR?

Replace if necessary.

 

 

 

 

 

Short Circuit in load?

Check load and repair.

 

 

 

Circuit Breaker Tripped

Over current?

Confirm load requirements and reduce.

 

 

Defective circuit breaker?

Check and replace.

 

 

 

 

 

Over current Relay actuated?

Confirm load requirement and replace.

 

 

 

page 36 —MQP20P STANDBY GENERATOR • operation and parts manual — rev. #1 (11/28/11)

Image 36
Contents Model MQP20P Proposition 65 warning Diesel engine exhaust and somePage Table of Contents MQP20P Standby GeneratorChoose from three easy options Safety Information SaFeTY MeSSageSGeNeRal SaFeTY GeNeRaTOR SaFeTYENgiNe SaFeTY Restricted. If the air fl ow isFuel SaFeTY TOWiNg SaFeTYEleCTRiCal SaFeTY Grounding SafetyPower Cord/Cable Safety BaTTeRY SaFeTY ENviRONMeNTal SaFeTYSpecifications Dimensions Installation Typical Generator Grounding ApplicationOutdoor Installation Indoor InstallationMounting Generator GroundingGeneral information GeneratorCamlok outlet box panel Principle of operation EngineElectrONIC Governor System Major components Item no DescriptionBasic engine components Basic Engine ComponentsDigital controller panel Microprocessor Engine Controller MECConnector outlet box and main circuit breaker Outlet connectorsSingle Phase Load Load application/generator outputGenerator Amperage Inspection/setup Refueling ProcedureLubrication Oil Fuel CheckFuel Expands Cleaning the Radiator Air Cleaner Fan Belt TensionBattery Coolant Antifreeze/summer coolantBattery Cable Installation WiringAlternator Piping and Hose ConnectionStarting Auto Mode StartupBefore Starting Starting ManualNormal Shutdown Procedure Emergency Shutdown ProcedureJacketWater Heater and Internal Battery Charger Battery Charger and Jacket Water Heater Power ConnectionsProtective devices Protective devicesTransporting TransportingMaintenance Air Filter Dust IndicatorGeneral Inspection Air Filter Cleaning Inside the Fuel Tank Fuel AdditionRemoving Water from the Fuel Tank Fuel Tank InspectionRadiator Cleaning Voltage regulator adjustmentsFlushing Out Radiator and Replacing Coolant PotentiometersAdjustment Procedure Generator StorageTroubleshooting Generator Troubleshooting GeneratorTroubleshooting engine Troubleshooting EngineTroubleshooting controller Troubleshooting MEC20 ControllerImproper calibration? Troubleshooting Voltage Regulator Troubleshooting Voltage RegulatorMaintenance Parts Locator Generator Wiring Diagram single phase Control BOXCircuit Breaker BOX Generator Wiring Diagram three phase 505 K1 Explanation of Code in Remarks Column Suggested Spare Parts MQP20P with Perkins 404D-22 Diesel Engine 1 to 3 unitsHousing assy Part Name Engine and Generator Mounting assy GENERATOR, 30KW Fuel assy Part Name QTY Remarks Electrical assy BOLT, BATTERY, 10.38 Jacket Water HEater assy BRACKET, MOUNTING, Heater Solenoid assy BRACKET, Starter Solenoid Radiator assy Guard Air filter assy Cover Engine exhaust assy Exhaust Flex Engine Oil assy OIL Filler CAP Control panel assy PANEL, FRONT, Control Panel Controller assy MODULE, Output Expan MEC 2/20 W/CABLE Saddlebox assy Phase Units Circuit breaker assy Ground Housing Camlok assyCOVER, HINGED, Black Terms and Conditions of Sale Parts FReigHT pOliCYPage HERE’S HOW to GET Help