Multiquip DCA45USI2 manual Troubleshooting Generator

Page 48

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.

Defective AVR?

Replace if necessary.

 

 

Short Circuit in load?

Check load and repair.

Circuit Breaker Tripped

Over current?

Confi rm load requirements and reduce.

Defective circuit breaker?

Check and replace.

 

 

Over current Relay actuated?

Confi rm load requirement and replace.

PAGE 48 — DCA45USI2 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (01/12/11)

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Contents Model DCA45USI2 This Manual Must Accompany the Equipment AT ALL TimesProposition 65 Warning Reporting Safety Defects AdministratorNhtsa Table of Contents DCA45USI2 GeneratorParts Ordering Procedures Ordering parts has never been easierSafety Information Safety MessagesGeneral Safety Generator 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-45USI2Isuzu BU-4JJ1T Tier Dimensions DimensionsInstallation Typical Generator Grounding ApplicationOutdoor Installation Indoor InstallationMounting Generator GroundingGeneral Information Muffl er Assembly Major ComponentsGenerator Control Panel OFFPage Engine Operating Panel OFFEngine Operating Panel Output Terminal Panel Familiarization Output Terminal FamiliarizationTerminal legs O and Ground are considered bonded grounds Removing the Plastic Face Plate Hard Wire Hookup Panel VAC Gfci ReceptaclesConnecting Loads Over Current RelaySingle Phase Load Three 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 Freezing WeatherBattery Battery Cable InstallationWiring AlternatorGenerator START-UP Procedure Before StartingStarting Starting ManualEngine Speed Switch High Generator SHUT-DOWN Procedures Normal Shutdown ProcedureEmergency Shutdown Procedure Place the Mpec Control Switch in the OFF/RESET positionMaintenance General Inspection AIR CleanerAir Cleaner with Dust Indicator Fuel Addition Fuel Tank InspectionAIR 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 ActuatorTIRES/WHEELS/LUG Nuts Tire Wear/InflationSuspension 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 DiagramController Wiring Diagram Engine ControllerTroubleshooting Generator Troubleshooting Diagnostic Lamp Method of OperationSample Parts List Explanation of Code in Remarks ColumnSuggested Spare Parts To 3 unitsGenerator Assy Balancing Weight Rotor Assy Field AssyRectifier ZNRControl BOX Assy Push Button Switch Diagnostic SwitchControl BOX EdgingControl BOX Assy Selector Switch Switch BracketSwitch Cover BRACKET, SensorControl BOX Assy Switch Alarm LampSWITCH, Panel Light SWITCH, Engine SpeedEngine and Radiator Assy AIR Cleaner ELEMENT, AIR CleanerINDICATOR, AIR Cleaner BRACKET, AIR CleanerEngine and Radiator Assy Connector ElbowLocknut ValveOutput Terminal Assy Terminal Panel Output Terminal BoltTIE Screw Terminal CoverBattery Assy Battery Battery SheetBattery Band Battery Bolt SETMuffler Assy Muffler HEX Head BoltExhaust Pipe Seal ClampFuel Tank Assy Fuel Tank Fuel Tank CAPFuel Sender Unit GasketEnclosure Assy Base Acoustic SheetEnvironmental Tank Front FrameEnclosure Assy Rear Door Window PlateDoor Handle ASS Y Roof PanelRubber Seals Assy Seal Rubber Nameplate and Decals Assy M1550000204 M1550000703M1550000804 M1550001504Terms and Conditions of Sale Parts Freight PolicyPage HERE’S HOW to GET Help

DCA45USI2 specifications

The Multiquip DCA45USI2 is a robust and versatile generator that caters to a wide array of power needs across various applications. Designed for both commercial and industrial use, this generator stands out due to its powerful output, durability, and advanced technology.

The DCA45USI2 offers a maximum output of 45 kVA, making it suitable for both demanding construction sites and as a backup power source for critical equipment in emergencies. It operates with a reliable Yanmar diesel engine, known for its fuel efficiency and longevity, ensuring that users can count on consistent performance over extended periods. The unit is built to provide high-quality electrical output, ensuring that sensitive equipment is protected from surges and fluctuations.

One of the standout features of the DCA45USI2 is its sound attenuation technology. Enclosed within a sturdy yet compact frame, this generator is designed to minimize noise levels, making it an ideal choice for urban environments or noise-sensitive applications. The insulation materials used are specifically chosen to absorb sound waves while still allowing for efficient ventilation.

In terms of ease of use, the DCA45USI2 is equipped with a user-friendly control panel that provides comprehensive monitoring capabilities. This includes advanced protective features, such as low oil pressure shutdown, high-temperature shutdown, and overload protection, ensuring that the generator operates safely at all times. The digital display offers real-time information on vital operating parameters, enabling operators to swiftly respond to any issues that may arise.

Another key characteristic of the DCA45USI2 is its portability. Weighing in at a manageable level for its size and capacity, it features heavy-duty wheels and a lifting eye which allow for easy transportation across job sites. This adaptability is crucial for rental companies and contractors who require a reliable source of power on-the-go.

Overall, the Multiquip DCA45USI2 embodies a blend of power, efficiency, and convenience. Its advanced engineering and thoughtful design cater to the needs of various industries, making it a preferred choice among professionals who demand reliability and performance from their equipment. Whether for construction, emergency response, or temporary power solutions, the DCA45USI2 proves to be a formidable ally in getting the job done efficiently and effectively.
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