Air Removal

If air enters the fuel injection system of a diesel engine, starting becomes impossible. After running out of fuel, or after disassembling the fuel system, bleed the system according to the following procedure. See the John Deere Engine Manual for details.

Check Oil Level

Check the crankcase oil level prior to each use, or when the fuel tank is filled. Insufficient 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 33.

Replacing Oil Filter

Remove the old oil filter.

Apply a film of oil to the gasket on the new oil filter.

Install the new oil filter.

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.

Replacing Fuel Filter

Replace the fuel filter cartridge with new one every 500 hours or so.

Loosen the drain plug at the lower top of the fuel filter. Drain the fuel in the fuel body together with the mixed water. DO NOT spill the fuel during disassembly.

Vent any air.

DCA-125USJ — MAINTENANCE

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 overflow tank and drain.

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

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.

Tighten both cocks and replace the overflow tank.

Replace with coolant as recommended by the engine manufaturer.

Close radiator cap tightly.

WARNING - BURN HAZARDS

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

Generator Storage

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

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

Completely drain the oil from the crankcase and refill 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.

DCA-125USJ — OPERATION AND PARTS MANUAL — REV. #2 (01/27/11) — PAGE 41

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Multiquip DCA125USJ Air Removal, Check Oil Level, Replacing Oil Filter, Replacing Fuel Filter, Generator Storage
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DCA125USJ specifications

The Multiquip DCA125USJ is a robust, high-performance generator designed to meet the diverse needs of various industries, including construction, events, and emergency backup. This generator boasts a compact size and impressive output, making it a reliable choice for both temporary and permanent power solutions.

At the heart of the DCA125USJ is a powerful diesel engine, providing an impressive 125 kVA output. This engine is engineered for efficiency, ensuring that the generator can continuously deliver reliable power while maintaining low operational costs. The generator operates at low RPM, which not only extends the engine's lifespan but also reduces noise levels, making it ideal for urban environments and sensitive locations.

One of the standout features of the DCA125USJ is its advanced electronic control system. This technology allows for seamless monitoring and management of the generator's performance, ensuring optimal operation. The control panel is user-friendly, offering real-time data on voltage, frequency, and operating hours, which simplifies maintenance and troubleshooting.

The DCA125USJ is equipped with a sturdy, weather-resistant enclosure that protects it from the elements, making it suitable for outdoor applications. This enclosure also contributes to noise reduction, ensuring quieter operation compared to traditional generators. Additionally, its compact design allows for easy transport and installation, making it a versatile option for various job sites.

Safety is a top priority in the design of the DCA125USJ. It features multiple safety mechanisms, such as an automatic shut-off system that activates in the event of low oil pressure or overheating, protecting the generator and prolonging its operational life.

Moreover, the DCA125USJ is compliant with rigorous emissions standards, making it an environmentally responsible choice. It offers options for multiple voltage outputs, which adds to its adaptability for different applications, from powering heavy machinery to providing electricity for small tools.

In summary, the Multiquip DCA125USJ stands out for its powerful diesel engine, state-of-the-art electronic controls, robust construction, and focus on safety and efficiency. Whether used in construction, outdoor events, or as a backup power source, the DCA125USJ is engineered to deliver reliable performance in a user-friendly package. This makes it a top contender for anyone needing dependable generator capabilities.
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