Multiquip DCA40SSKU4i manual Troubleshooting Generator, Generator Troubleshooting

Page 46

Troubleshooting (Generator)

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use Table 19 shown below for diagnosis of the Generator. If the problem cannot be remedied, consult our company’s business office or service plant.

Table 19. Generator Troubleshooting

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 AVR 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.

When the Emergency/Malfunction shutdown system has been activated, the engine will be stopped and the pre-heat lamp will indicate the malfunction by a series of flashing patterns. The flashing patterns and corrective action are shown below in Table 20. The flashing patterns consist of combinations of one or more long flashes and one or more short flashes.

Table 20. Engine/Generator Troubleshooting (Pre-heat Lamp)

 

Type of Fault

Possible Fault

Pre-Heat Lamp

Solution

 

 

Indication

 

 

 

 

 

 

 

Engine Overspeed

115% or more rated RPM speed?

Long 1 Short 1

Check electronic governor

 

 

Low Oil Pressure

Oil pressure 7 psi (49 kPa) or

Long 1 Short 2

Check oil level.

 

 

greater?

 

 

 

 

 

 

 

Insufficient Charge

No Voltage of Charging Genset?

Long 1 Short 3

Check wiring and repair.

 

 

High Water Temperature

Engine Overheat, 230° F (110° C)?

Long 1 Short 4

Check cooling system.

 

 

Engine Overheat, 248° F (120° C)?

Long 1 Short 6

Check cooling system.

 

 

Emergency Stop

Emergency Stop signal detected?

Long 1 Short 5

Check and repair fault

 

 

Starter Motor Protection

Starter motor run for 12 seconds

Long 1 Short 7

Check wiring and repair.

 

 

or more?

 

 

 

 

 

 

 

Rotation Sensor

Defective sensor, short circuit?

Long 2 Short 1

Check wiring and repair.

 

 

Solenoid

Defective solenoid, short circuit?

Long 2 Short 2

Check wiring and repair.

 

 

Water Temperature

Disconnection

Long 2 Short 4

Check connection.

 

 

Sensor

Short Circuit

Long 2 Short 5

Check sensor. Replace.

 

 

Charging Gen. Terminal

Disconnection

Long 2 Short 6

Check connections.

 

 

Over Voltage

VCC 18 volts or greater

Long 3 Short 1

Check overcurrent relay.

 

 

 

 

 

 

 

page 46 — DCA40sskU/ku4i 60 hz Generator • operation and parts manual — rev. #1 (03/11/13)

Image 46
Contents Model DCA40SSKU Model DCA40SSKU4i Proposition 65 warning Reporting Safety Defects AdministratorTable of Contents DCA45SSKU/SSKU4i 60 Hz GeneratorChoose from three easy options Safety Information SaFeTY messagesGeneral saFeTY GeneraTor saFeTYRestricted. If the air fl ow is Engine saFeTYIf operating in speed ranges above the maximum allowable „ never use fuel as a cleaning agent FUel saFeTYToWing saFeTY From fuel vapors or if fuel is spilled on a hot engineGrounding safety EleCTriCal saFeTYPower Cord/Cable safety BaTTerY saFeTY EnvironmenTal saFeTYSpecifications 240/120Dimensions DimensionsInstallation Typical Generator Grounding ApplicationMounting Outdoor InstallationIndoor Installation Generator GroundingGeneral Information Major Components Item noWill remain OFF. When the ignition Engine Control PanelGenerator control Panel Generator Control PanelTerminal legs O and Ground are considered bonded grounds Output Terminal FamiliarizationOutput Terminal Panel is provided with the following Removing the Plastic Face Plate Hard Wire Hookup Panel VAC Gfci ReceptaclesConnecting Loads Over Current RelayThree Phase Load Single Phase LoadLoad Application Generator Output Voltages Voltage Selector SwitchVoltage Selector Switch Locking Button Generator AmperageAC Voltmeter Gauge Reading How to Read the ac ammeter and ac voltage gaugesGenerator OUTPUTS/gauge reading AC Ammeter Gauge Reading3Ø-240/139 Uvwo Terminal Output Voltages Uvwo Terminal Output Voltages3Ø-208V/1Ø-120V Uvwo Terminal Output Voltages 3Ø-480/277V Uvwo Terminal Output Voltages 1Ø-240/120V Uvwo Terminal Output VoltagesLubrication Oil Inspection/SETUPCircuit Breakers Fuel CheckRefueling Procedure Remove fuel cap and fill tank as shown in FigureCoolant Antifreeze/Summer Coolant/ Water Cleaning the RadiatorAir Cleaner Fan Belt Tension Operation in Freezing WeatherWiring BatteryBattery Cable Installation AlternatorStarting Before StartingEngine’s exhaust contains harmful emissions Place the engine speed control switch in the RUN position up Emergency Shutdown Procedure Normal Shutdown ProcedureAutomatic Shut-down System General Inspection Air Cleaner MaintenanceAir Cleaner with Dust Indicator Removing Water from the Fuel Tank Cleaning Inside the Fuel TankFuel Addition Fuel Tank InspectionCheck Oil Level Radiator CleaningAir Removal Replacing Oil FilterJacketWater Heater and Internal Battery Optional Battery Charger and Jacket Water Heater optionTrailer Maintenance Trailer MaintenanceCoupler Type of hitch used on the trailer for towing Hydraulic Surge Brakes Brake AdjustmentBrakes ActuatorTire Wear/Inflation Tires/Wheels/Lug NutsSuspension Lug Nut Torque Requirements Never use an pneumatic air gun to tighten wheel lug nutsTrailer Wiring Diagram Trailer/Towing Vehicle Wiring DiagramGenerator Wiring Diagram Generator Wiring DiagramEngine Wiring Diagram Engine Wiring DiagramTroubleshooting Generator Generator TroubleshootingPage Explanation of Code in Remarks Column Suggested Spare Parts To 3 unitsGenerator Assy 0601822664 B31100013020601820083 B3120100804Control box Assy Y0330000255 M1213002012Y0330000555 Y0330000190Control box Assy 0601801040 06018068590601808986 AC AMMETER, 0~75/150A5A 0601807641 0601840073Engine and Radiator Assy 1663143560 M19232001641G54197010 HH1C032430Engine and Radiator Assy M1310200904 01936013000605515170 M1310201004Output Terminal Assy 0039310000 81118603030801831704A 0041410000Battery Assy M9103000304 0602220199M9310500014 0602220920Muffler Assy Y0602320157 M1330101403M1333003503 0030410000Fuel Tank Assy 0605501072 M13630026020605505070 0605516090Enclosure Assy M1423003102 M1413004202M1413400004 M1493110203Enclosure Assy 36B 031108160 001910805536A 0042308000 M1453006213Rubber Seals Assy Y0228900595 Y0228901240Y0228900625 0229400970Nameplate and Decals Assy M9522000604 M9522000504M9520000104 M9500400204Terms and Conditions of Sale Parts FreighT poliCYPage HERE’S HOW to GET Help