Multiquip DCA-500SSK -TROUBLESHOOTING GENERATOR/ENGINE, Generator Troubleshooting

Page 64

DCA-500SSK —TROUBLESHOOTING (GENERATOR/ENGINE)

All breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the diagnosis based

on the Engine and Generator Troubleshooting (Table 17) information shown below. If the problem cannot be remedied, consult our company's business office or service plant.

TABLE 17. GENERATOR TROUBLESHOOTING

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

 

AC Voltmeter defective?

Check output voltage using a voltmeter.

 

 

 

No Voltage Output

Is wiring connection loose?

Check wiring and repair.

 

 

Is AVR defective?

Replace if necessary.

 

 

 

 

 

Defective Rotating Rectifier?

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 64 — DCA-500SSK — PARTS AND OPERATION MANUAL (STD) — REV. #1 (04/14/01)

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Contents MQ Power Model DCA-500SSK Whisperwatttm Generator Page Heres HOW to GET Help Table of Contents Earn Extra Discounts when You order by FAX Parts Ordering ProceduresGeneral Safety Rules for Safe OperationRadiator Battery Loading and Unloading CraneRules for Safe Operation Towing Safety Precautions DCA-500SSK -TOWINGDCA-500SSK TRAILER-SAFETY Guidelines Explanation of ChartDCA-500SSK -TRAILER-SPECIFICATIONS DCA-500SSK -TRAILER-SPECIFICATIONS ElectricalBrakes Electric Brake AdjustmentElectric Brakes DCA-500SSK -TRAILER Safety Guidelines Hydraulic/Air/Surge BrakesTire Wear/Inflation Tires/Wheels/Lug NutsSuspension Torque Ft.-Lbs DCA-500SSK -TRAILER Safety GuidelinesLug Nut Torque Requirements DCA-500SSK -TRAILER-WIRING Diagram DCA-500SSK -TRAILER Brakestroubleshooting Symptom Possible Cause SolutionDCA-500SSK Operation and Safety Decals Machine Safety DecalsDCA-500SSK Operation and Safety Decals DCA-500SSK Operation and Safety Decals DCA-500SSK Operation and Safety Decals DCA-500SSK Operation and Safety Decals DCA-500SSK -- Notes DCA-500SSK Specifications DCA-500SSK General Information DCA-500SSK Major Components Major ComponentsPage DCA-500SSK Dimensions TOP and Side DimensionsDCA-500SSK Dimensions Front and Rear DCA-500SSK Control Panel Control PanelDCA-500SSK Control Panel Pilot Lamp Indicates that the generator is working properlyDCA-500SSK Engine Operating Panel Engine Operating PanelFuel Level Gauge Indicates amount of diesel fuel remaining DCA-500SSK Outputterminal Output Terminal Panel Location Output Terminal Panel Available Voltages Over Current Relay Maximum AmpsModel Rated Maximum AmpsReading the Output Terminal Gauges AC VoltmeterSingle Phase, 240 Volt Phase, 240 VoltSingle Phase, 139 Volt Voltage Change-over BoardSingle Phase, 480 Volt Phase, 480 VoltSingle Phase, 277 Volt DCA-500SSK OutputterminalDCA-500SSK Installation Outdoor InstallationDCA-500SSK Installation Typical Generator Grounding ApplicationDCA-500SSK PRE-SETUP General Inspection Prior to OperationType Oil RangeCleaning the Radiator Air CleanerOperation in Freezing Weather Fan Belt TensionWiring Battery Cable InstallationPiping and Hose Connection Three Phase Load Single Phase LoadDCA-500SSK Load Application Before Starting Engine Before Starting Generator and Control PanelSet the battery ON/OFF switch to the on position Voltage Meter Volts Engine Speed Switch DCA-500SSK Generator START-UP Procedure Auto Engine Shutdown DCA-500SSK Generator Shutdown ProcedureEmergency Stop Page DCA-500SSK Maintenance Changing Oil Check Electric Heater If equippedReplacing fuel filter Greasing Cleaning breather elementGenerator Storage Inspection / Maintenance DCA-500SSK-GENERATORWIRING Diagram DCA-500SSK-ENGINEWIRING Diagram DCA-500SSK -TROUBLESHOOTING Engine DCA-500SSK -TROUBLESHOOTING Engine Engine TroubleshootingDCA-500SSK -TROUBLESHOOTING GENERATOR/ENGINE Generator TroubleshootingDCA-500SSK -TROUBLESHOOTING Mpec Mpec TroubleshootingExplanation of Code in Remarks Column Items Found In the Items Number ColumnDCA-500SSK w/SA6D170AE-1 Komatsu Engine DCA-500SSK Suggested Spare PartsQty Description DCA-500SSK Generator Assy Part Name QTY DCA-500SSK Generator Assy DCA-500SSK Generator Assy DCA-500SSK Control BOX Assy Part Name DCA-500SSK Control BOX Assy APS Unit DCA-500SSK Engine & Radiator Assy Part Name QTY Remarks DCA-500SSK Engine & Radiator Assy 0131710060 DCA-500SSK Engine Operating Panel Assy Support LEG DCA-500SSK Engine Operating Panel Assy Starter Switch DCA-500SSK Outputterminal Assy Output Terminal DCA-500SSK Outputterminal Assy Cover DCA-500SSK Battery Assy Battery DCA-500SSK Muffler Assy Muffler DCA-500SSK Fueltank Assy Fuel Tank DCA-500SSK Enclosure #1 Assy Enclosure #1 AssyDCA-500SSK Enclosure #1 Assy DCA-500SSK Enclosure #1 Assy HEX.NUT DCA-500SSK Enclosure #2 Assy Enclosure #2 AssyRear Frame DCA-500SSK Enclosure #2 Assy DCA-500SSK Enclosure #2 Assy DCA-500SSK Enclosure #3 Assy Enclosure #3 AssyDCA-500SSK Enclosure #3 Assy DCA-500SSK Enclosure #3 Assy 7525151504 DCA-500SSK Rubber Seal Assy 0228901640 DCA-500SSK Nameplate and Decals Control BOX Group DCA-500SSK Nameplate and Decals Part Name QTY Remarks Terms and Conditions of Sale Parts Freight PolicyPage Mail mq@multiquip.com WWW multiquip.com