Multiquip DCA125USI Check OIL Level, Replacing Oil Filter, Radiator Cleaning, Generator Storage

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MAINTENANCE

CHECK OIL LEVEL

Check the crankcase oil level prior to each use, or when the fuel tank is fi lled. Insuffi cient oil may cause severe damage to the engine. Make sure the generator is level. The oil level must be between the two notches on the dipstick as shown in Figure 28.

Replacing Oil Filter

Remove the old oil fi lter.

Apply a fi lm of oil to the gasket on the new oil fi lter.

Install the new oil fi lter.

After the oil cartridge has been replaced, the engine oil will drop slightly. Run the engine for a while and check for leaks before adding more oil if needed. Clean excessive oil from engine.

FLUSHING OUT RADIATOR AND REPLACING COOLANT

Open both cocks located at the crankcase side and at the lower part of the radiator and drain coolant. Open the radiator cap while draining. Remove the overfl ow tank and drain.

Check hoses for softening and kinks. Check clamps for signs of leakage.

Tighten both cocks and replace the overfl ow tank.

Replace with coolant as recommended by the engine manufacturer.

Close radiator cap tightly.

Flush the radiator by running clean tap water through radiator until signs of rust and dirt are removed. DO NOT clean radiator core with any objects, such as a screwdriver.

WARNING

Allow engine to cool when fl ushing out radiator. Flushing the radiator while hot could cause serious burns from water or steam.

RADIATOR CLEANING

The radiator (Figure 59) should be sprayed (cleaned) with a high pressure washer when excessive amounts of dirt and debris have accumulated on the cooling fi ns or tube. When using a high pressure washer, stand at least 5 feet (1.5 meters) away from the radiator to prevent damage to the fi ns and tube.

Figure 59. Radiator Cleaning

GENERATOR STORAGE

For long term storage of the generator the following is recommended:

Drain the fuel tank completely. Treat with a fuel stabilizer if necessary.

Completely drain the oil from the crankcase and refi ll if necessary with fresh oil.

Clean the entire generator, internal and external.

Cover the generating set and store in a clean, dry place.

Disconnect the battery.

Make sure engine coolant is at proper level.

If generator is mounted on a trailer, jack trailer up and place on blocks so tires do not touch the ground or block and completely remove the tires.

DCA125USI 60 HZ GEN. • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11) — PAGE 39

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Contents This Manual Must Accompany the Equipment AT ALL Times Model DCA125USIProposition 65 Warning Reporting Safety Defects AdministratorNhtsa DCA125USI 60 Hz Generator Table of ContentsOrdering parts has never been easier Parts Ordering ProceduresSafety Messages Safety InformationGeneral Safety Generator 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 agentElectrical Safety Device. All installations should be Never use gas piping as an electrical ground Environmental Safety Battery SafetyDCA125USI SpecificationsDimensions DimensionsTypical Generator Grounding Application InstallationGenerator Grounding Outdoor InstallationIndoor Installation MountingGeneral Information Major Components Owing from the U,V, and W Output Terminal Lugs to the load Generator Control PanelPage Engine Operating Panel Engine Operating PanelModule Fuel Gauge Indicates amount of diesel fuel availableOutput 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 ReceptaclesTwist Lock Dual Voltage 120/240 VAC Receptacles Over Current Relay Connecting LoadsSingle Phase Load Three Phase LoadLoad Application Generator Output Voltages Generator OutputsHOW to Read the AC Ammeter and AC Voltage Gauges Generator OUTPUTS/GAUGE ReadingAC Voltmeter Gauge Reading 3Ø-208V/1Ø-120V Uvwo Terminal Output Voltages Output Terminal Panel ConnectionsUvwo Terminal Output Voltages 3Ø-240/139 Uvwo Terminal Output Voltages1Ø-240/120V Uvwo Terminal Output Voltages 3Ø-480/277V Uvwo Terminal Output VoltagesFuel 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 ProcedureBefore Starting StartingPre-Heat Lamp To shutdown the generator, use the following procedure Generator SHUT-DOWN ProceduresNormal Shutdown Procedure Emergency Shutdown ProcedureMaintenance General Inspection AIR CleanerAir Cleaner with Dust Indicator Fuel Addition Fuel Tank InspectionAIR Removal Flushing OUT Radiator and Replacing Coolant Radiator CleaningCheck OIL Level Replacing Oil FilterBattery Charger & Jacket Water Heater Power Connections Trailer Maintenance Trailer MaintenanceCoupler Type of hitch used on the trailer for towing Through 8 and as listed below Brake AdjustmentBrakes Hydraulic Surge BrakesTIRES/WHEELS/LUG Nuts Tire Wear/Infl ationSuspension Lug Nut Torque Requirements Start all wheel lug nuts by handNever use an pneumatic air gun to tighten wheel lug nuts Trailer/Towing Vehicle Wiring Diagram Trailer Wiring DiagramGenerator Wiring Diagram Generator Wiring DiagramEngine Wiring Diagram Engine Wiring DiagramController Wiring Diagram Controller Wiring DiagramTroubleshooting Generator Method of Operation Troubleshooting Diagnostic LampPage Sample Parts List Explanation of Code in Remarks ColumnXxxxx only Not Used on To 3 units Suggested Spare PartsGenerator Assy FAN Part Name QTY. RemarksIncludes Items W/# Field AssyControl BOX Assy Switch Bracket Push Button SwitchDiagonastic Switch Selector SwitchControl BOX Assy SWITCH, Panel Light Switch CoverAlarm Lamp Water Temperature GaugeEngine and Radiator Assy BAND, AIR Cleaner AIR CleanerINDICATOR, AIR Cleaner Bracket AIR CleanerEngine and Radiator Assy Hose Joint ConnectorAIR Duct Hose Blow by HoseEngine and Radiator Assy BRACKET, FAN Shroud BRACKET, Inter CoolerCooler Hose FAN ShroudOutput Terminal Assy Output Window Terminal BoardOutput Terminal Bolt Terminal CoverBattery Assy Battery Bolt SET BatteryBattery Sheet Battery BandMuffler Assy Muffler GasketBolt SET Fuel Tank Assy Connect Hose Fuel TankFuel Tank CAP Fuel Sender UnitEnclosure ASSY. Part Enclosure ASSY. PART1 Enclosure ASSY. Part COVER, Radiator CAP Back PlateDuct Over COVER, Front FrameEnclosure ASSY. Part Rear Frame Enclosure ASSY. Part Seal Rubber WasherManual PAK Rubber Seals Assy Part Name Nameplate and Decals Assy Output Terminal Group Battery GroupControl BOX Group Engine & Radiator GroupNameplate and Decals Assy Enclosure Group Fuel Tank GroupFreight Policy Terms and Conditions of Sale PartsPage HERE’S HOW to GET Help
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DCA125USI specifications

The Multiquip DCA125USI is a high-performance portable diesel generator renowned for its reliability, efficiency, and robust construction, making it an ideal choice for construction sites, events, and remote locations requiring continuous power. Engineered for durability, this generator features a solid and compact design that allows seamless transport while providing ample power to meet demanding applications.

One of the standout features of the DCA125USI is its powerful 125 kVA output, capable of supplying electricity to a wide range of equipment simultaneously. With a fuel-efficient Tier 4 compliant engine, this generator not only delivers high performance but also addresses environmental concerns through reduced emissions. Operating at low noise levels, the DCA125USI ensures a quieter work environment, making it suitable for urban areas and noise-sensitive locations.

In terms of technology, the DCA125USI is equipped with a state-of-the-art digital control panel that offers advanced monitoring capabilities, allowing users to easily track the generator's performance, fuel consumption, and overall health. This user-friendly interface simplifies operation and enhances the overall experience for users, whether they are seasoned professionals or first-time operators. Additionally, the generator is fitted with automatic voltage regulation (AVR), which provides stable power output, protecting connected equipment from voltage fluctuations.

Safety is a priority with the Multiquip DCA125USI, as evidenced by its comprehensive set of protection features, including low oil pressure shutdown, high-temperature shutdown, and overload protection. These safety mechanisms ensure the longevity of the engine and the generator's components while safeguarding connected equipment against potential damage.

Another notable characteristic is its large fuel tank, which allows for extended run times, reducing the need for frequent refueling. This feature is particularly beneficial in situations where access to fuel is limited or where continuous operation is critical.

In conclusion, the Multiquip DCA125USI is a versatile and dependable portable diesel generator, catering to a wide variety of applications. Its combination of high output, advanced technology, and robust safety features make it an excellent investment for contractors, event organizers, and anyone in need of reliable power in challenging environments. With this generator, users can have peace of mind knowing they have a powerful energy solution at their disposal.
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