Multiquip DCA300SSC manual Owing from the U,V, and W Output Terminal Lugs to the load

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GENERATOR CONTROL PANEL

MPEC Control Switch — This switch controls the running of the unit. If this switch is set to the OFF/RESET position, the unit will not run.When this switch is set to the manual position, the generator will start immediately.

If the generator is to be connected to a building’s AC power source via a transfer switch (isolation), place the switch in the AUTO position. In this position, should an outage occur, the automatic transfer switch (ATS) will start the generator automatically via the generator’s auto- start contacts conn ected to the ATS’s start contacts. Please refer to your ATS installation manual for further instructions for the correct installation of the auto-start contacts of the geerator to the ATS.

Low Oil Pressure — Indicates the engine pressure has fallen below a safe operating level. The oil pressure is detected using variable resistive values from the oil pressure sending unit. This is considered a major fault.

High Coolant Temperature — Indicates the engine temperature has exceeded a safe operating level. The engine temperature is detected using variable resistive values from the temperature sending unit. This is considered a major fault.

Overcrank Shutdown — Indicates the unit has attempted to start a pre- programmed number of timesand has failed to start. The number of cycles and duration are programmable. It is pre-set at 3 cycles with a 10-second duration. This is considered a major fault.

Overspeed Shutdown — Indicates the engine is running at an unsafe speed. This is considered a major fault.

Engine Running — Indicates that engine is running at a safe operating speed.

Located behind the generator control panel is the Generator Control Box. This box contains some of the necessary electronic components required to make the generator function.

The Control Box is equipped with the following major components:

Over-Current Relay

Voltage Rectifi er (AVR)

Starter Relay

Current Transformer

Voltage Change-Over Board

Three Phase Circuit Breaker

NOTICE

Remember the overcurrent relay monitors the current

flowing from the U,V, and W Output Terminal Lugs to the load.

In the event of a short circuit or over current condition, it will automatically trip the 800 amp main breaker.

To restore power to the Output Terminal Panel, press the reset button on the overcurrent relay and place the main circuit breaker in the closed position (ON).

DCA300SSC GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (06/25/09) — PAGE 19

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Contents This Manual Must Accompany the Equipment AT ALL Times Model DCA300SSCProposition 65 Warning Nhtsa Reporting Safety DefectsDCA300SSC Table of ContentsOrdering parts has never been easier Parts Ordering ProceduresSafety Messages Safety InformationGenerator Safety General Safety Always know the location of the nearest Before servicing equipment Engine SafetyFrom fuel vapors or if fuel is spilled on a hot engine Fuel SafetyTowing Safety  Never use fuel as a cleaning agentDevice. All installations should be Electrical SafetyGrounding Safety Power Cord/Cable SafetyEnvironmental Safety Battery SafetyCummins QSL9-G3 SpecificationsDimensions DimensionsTypical Generator Grounding Application InstallationGenerator Grounding Outdoor InstallationIndoor Installation MountingGeneral Information Item no Major ComponentsPilot Lamp Indicates the system is running Generator Control PanelOwing from the U,V, and W Output Terminal Lugs to the load Engine Operating Panel Air Filter Alarm When the air fi lterPage Output Terminal Familiarization Output Terminal Panel FamiliarizationTerminal legs O and Ground are considered bonded grounds 240V Twist-Lock Auxiliary Receptacles VAC Gfci ReceptaclesOver Current Relay Connecting LoadsThree Phase Load Single Phase LoadLoad Application Maximum Amps Generator OutputsGenerator Output Voltages Voltage Change-Over BoardAC Voltmeter Gauge Reading HOW to Read the AC Ammeter and AC Voltage GaugesGenerator OUTPUTS/GAUGE Reading AC Ammeter Gauge Reading1Ø-240V Uvwo Terminal Output Voltages Output Terminal Panel ConnectionsUvwo Terminal Output Voltages 3Ø-240V Uvwo Terminal Output Voltages1Ø-480V Uvwo Terminal Output Voltages 3Ø-480V Uvwo Terminal Output Voltages1Ø-277V Uvwo Terminal Output Voltages Fuel Check INSPECTION/SETUPCircuit Breakers Lubrication OILOnly use #2 diesel fuel when refueling Refueling ProcedureOperation in Freezing Weather Cleaning the RadiatorAIR Cleaner FAN Belt Tension Coolant ANTIFREEZE/SUMMER COOLANT/ WaterAlternator BatteryBattery Cable Installation WiringStarting Manual Generator START-UP Procedure ManualPlace the engine speed switch in the LOW down position Before StartingFrequency Meter Place the engine speed switch in the High position Generator START-UP Procedure Auto ModeStarting Auto Mode Before connecting this generator to anyNever stop the engine suddenly except in an emergency Generator SHUT-DOWN ProceduresNormal Shutdown Procedure Emergency Shutdown ProcedureGeneral Inspection AIR Cleaner MaintenanceAir Cleaner with Dust Indicator Fuel Tank Inspection Fuel AdditionAIR Removal Flushing OUT Radiator and Replacing Coolant Radiator CleaningCheck OIL Level Replacing Oil FilterBattery Charger and Jacket Water Heater Power Connections Trailer Maintenance Trailer MaintenanceCoupler Type of hitch used on the trailer for towing Actuator Brake AdjustmentBrakes Hydraulic Surge BrakesTire Wear/Inflation TIRES/WHEELS/LUG NutsSuspension Never use an pneumatic air gun to tighten wheel lug nuts Lug Nut Torque RequirementsTrailer/Towing Vehicle Wiring Diagram Trailer Wiring DiagramGenerator Wiring Diagram Generator Wiring DiagramEngine Wiring Diagram Engine Wiring DiagramPage Troubleshooting Generator Adjust governor controller Troubleshooting Engine ControllerClean/repair radiator grill Adjust governor actuatorMethod of Operation Troubleshooting Diagnostic LampPage Explanation of Code in Remarks Column Sample Parts ListTo 3 units Suggested Spare PartsGenerator Assy 4A# 0040005000 06018424020601823282 0018205020Generator Assy 0010310030 C31544000030017106015 C3164600103Control BOX Assy 0601807513 M52130000020601809659 0027106015Control BOX Assy 0601830746 38 a 06018102440601831670 0601831205Engine and Radiator Assy 0602046638 C29232002040602015244 3288497Engine and Radiator Assy 0602010220 06033063950602021070 0269200800Engine Operating Panel Assy 0602101000 C23511019030017106020 0207006000Output Terminal Assy 0039320000 C2231700403C0277500004 0801830904Battery Assy 3972250004 0165614551145G51 C9109100604Muffler Assy 0602325066 C23311000020019210025 M5333000003Fuel Tank Assy 0264100525 C23630003030810105004 0810105400Enclosure Assy C2414600304 C2413003202C3414100104 C2414100004Enclosure Assy Door ROD Enclosure Assy Gutter Rubber Seals Assy Seal Rubber Nameplate and Decals Assy Control BOX Group Nameplate and Decals Assy Battery Group Freight Policy Terms and Conditions of Sale PartsPage HERE’S HOW to GET Help

DCA300SSC specifications

The Multiquip DCA300SSC is a durable and powerful skid-mounted diesel generator designed for a range of applications, including construction sites, events, and emergency backup power. With a robust operational capacity of 300 kilowatts, this generator stands out for its reliability and efficiency in providing continuous power.

One of the key features of the DCA300SSC is its commercial-grade engine. The generator is equipped with a reliable and efficient diesel engine that ensures optimal performance under various operating conditions. This engine is designed for durability and longevity, minimizing the need for frequent maintenance. The generator's high fuel efficiency reduces operational costs, making it an economical choice for businesses and contractors.

Another notable characteristic of the DCA300SSC is its advanced sound attenuation technology. This design feature significantly lowers noise levels during operation, which is essential for applications in populated areas or sensitive environments. The generator is housed in a weather-resistant enclosure that protects it from environmental factors, ensuring consistent performance regardless of weather conditions.

In terms of power management, the DCA300SSC is equipped with a sophisticated digital control panel that allows users to monitor and manage the generator’s performance effectively. The control panel displays vital information, such as voltage, frequency, and run-time hours, facilitating easy operation and troubleshooting. This technology also integrates automatic voltage regulation, enhancing the generator's stability and safety during operation.

Safety is a priority in the design of the DCA300SSC. It is built with multiple safety features, including low oil pressure shutdown, high coolant temperature shutdown, and over-speed protection. These measures provide peace of mind to users by reducing the risk of equipment failure and ensuring safe operation.

The compact design and skid-mounted configuration of the DCA300SSC allow for easy transport and installation, making it a versatile solution for a variety of industries. Additionally, the generator can be configured for different voltage outputs, further increasing its adaptability for specific applications.

In summary, the Multiquip DCA300SSC is a powerful and versatile generator known for its reliability, efficiency, and advanced features. With its durable construction, advanced sound attenuation, user-friendly control panel, and robust safety features, it meets the demands of both commercial and industrial applications with ease. Whether for temporary power supply or backup generation, the DCA300SSC is a suitable choice for professionals seeking dependable energy solutions.
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