Multiquip DCA85usJ2 manual Troubleshooting Generator

Page 64

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 ofﬁ ce 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 Rectiﬁ er?	Check and replace.
		Defective Exciter Field?	Check for approximately 17.3 ohms across J & K on CN1
		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.
	High Voltage Output	Defective AVR?	Replace if necessary.
		Defective AVR?	Replace if necessary.
		Short Circuit in load?	Check load and repair.
	Circuit Breaker Tripped	Over current?	Conﬁ rm load requirements and reduce.
	Circuit Breaker Tripped	Defective circuit breaker?	Check and replace.
		Defective circuit breaker?	Check and replace.
		Over current Relay actuated?	Conﬁ rm load requirement and replace.

PAGE 64 — DCA85USJ2 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/22/11)

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Contents Model DCA85USJ2 This Manual Must Accompany the Equipment AT ALL TimesProposition 65 Warning Reporting Safety Defects AdministratorTable of Contents DCA-85USJ2 GeneratorParts Ordering Procedures Ordering parts has never been easierSafety Information Safety MessagesGenerator Safety General Safety Always know the location of the nearest Engine Safety Before servicing equipmentFuel Safety Towing Safety Never use fuel as a cleaning agent From fuel vapors or if fuel is spilled on a hot engineElectrical Safety Grounding SafetyPower Cord/Cable Safety Device. All installations should beBattery Safety Environmental SafetySpecifications DCA-85USJ2Dimensions DimensionsInstallation Typical Generator Grounding ApplicationOutdoor Installation Indoor InstallationMounting Generator GroundingGeneral Information Major Components Item noDisplay Parameters Diagnostic DisplayMenu Button Press this button to enter or exit menu screens Main Menu Navigation First Time Start UpSelecting a Language Stored Fault Codes Engine Conﬁguration DataFirst Time Start-Up Touch the Menu Button to return to the main menu Auxiliary Gage Fault Faults and WarningDisplay will return to the single or four parameter screen Active Fault Codes Fault CodeBachlight Adjustment Shutdown CodesContrast Adjustment Setup 1-UP Display Select UnitsUSE Defaults Automatic Scan on Select the 4-Up Custom Setup from the 4-Up Setup menu Setup 4-Up DisplayTouch the Enter Button and a list of parameters will appear Utilities information and troubleshooting FunctionsTouch Menu Button to return to the Utilities menu Modbus Setup When ﬁ nished, touch Menu to return to the previous screenData Error Timeout ECU not RespondingCanbus Failure No DataGenerator Control Panel OFFEngine Operating Panel OFFEngine Operating Panel Output Terminal Familiarization Output Terminal Panel FamiliarizationTerminal legs O and Ground are considered bonded grounds Removing the Plastic Face Plate Hard Wire Hookup Panel VAC Gfci ReceptaclesConnecting Loads Over Current RelayThree Phase Load Single Phase LoadLoad Application Generator Outputs Generator Output VoltagesHOW to Read the AC Ammeter and AC Voltage Gauges Generator OUTPUTS/GAUGE ReadingAC Voltmeter Gauge Reading AC Ammeter Gauge ReadingOutput Terminal Panel Connections Uvwo Terminal Output Voltages3Ø-240/139 Uvwo Terminal Output Voltages 3Ø-208V/1Ø-120V Uvwo Terminal Output Voltages3Ø-480/277V Uvwo Terminal Output Voltages 1Ø-240/120V Uvwo Terminal Output VoltagesINSPECTION/SETUP Circuit BreakersLubrication OIL Fuel CheckRefueling Procedure Only use #2 diesel fuel when refuelingCleaning the Radiator AIR Cleaner FAN Belt TensionCoolant ANTIFREEZE/SUMMER COOLANT/ Water Operation in Freezing WeatherBattery Battery Cable InstallationWiring AlternatorGenerator START-UP Procedure Manual Mode Before StartingStarting Starting ManualEngine Speed Switch High Before connecting this generator to any Starting Auto ModeWithout this transfer switch Normal Shutdown Procedure Generator SHUT-DOWN ProceduresEmergency Shutdown Procedure General Inspection AIR Cleaner MaintenanceAir Cleaner with Dust Indicator Fuel Tank Inspection Fuel AdditionAIR Removal Radiator Cleaning Check OIL LevelReplacing Oil Filter Flushing OUT Radiator and Replacing CoolantTrailer Maintenance Trailer MaintenanceCoupler Type of hitch used on the trailer for towing Brake Adjustment BrakesHydraulic Surge Brakes 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 Troubleshooting Engine Controller Clean/repair radiator grillAdjust governor actuator Adjust governor controllerSample Parts List Explanation of Code in Remarks ColumnSuggested Spare Parts To 3 unitsGenerator Assy 8101070033 00128100358101611004 8101015003Control BOX Assy M2213001702 M22130017120330000180 0330000280Control BOX Assy M4266600004 060180221833A 0601806653 33B 0601802149Control BOX Assy M3223100004 0027105010M9220100004 0080200007Engine and Radiator Assy M2923200094 R135680RE504836 RE529643Engine and Radiator Assy 0605511395 06055113990603306395 0603306399Output Terminal Assy M3230700003 M9220100304M9220100404 0039316000Battery Assy 0602220199 M9310500014M9103000304 0602220920Muffler Assy M2330101303 0017112030M2333001603 M2333200204Fuel Tank Assy M2363000902 06055050700605501073 0605516090Enclosure 1 Assy M2413002202 M23633007030016910030 0603306797Enclosure 1 Assy M2463200603 34A M2493502104M2463400203 M2423200814Enclosure 2 Assy M3443001902 M3493308603M3443002004 M2443400003Enclosure 2 Assy 29A C9312500004 30A 0030006000M9110100804 M9110100904Rubber Seals Assy 0229201240 02292011300314502550 0229200125Nameplate and Decals Assy M1550000204 M1550002203M2550002603 M2550002613Terms and Conditions of Sale Parts Freight PolicyPage HERE’S HOW to GET Help