Subaru PKX301ST Parts Manual

Pages 30

Year 2012

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Subaru PKX301ST Pump Specification

The Subaru PKX301ST Pump is a robust and efficient centrifugal water pump designed for high-performance applications. It features a powerful engine that ensures reliable operation across a range of water handling tasks. The pump is equipped with a 4-stroke, air-cooled Subaru EX engine, known for its durability and fuel efficiency, delivering consistent power output. With a maximum output of approximately 7.0 horsepower, it offers substantial capacity for both residential and commercial use.

The PKX301ST has a maximum flow rate of up to 256 gallons per minute, making it suitable for large-scale water transfer, irrigation, and dewatering applications. It boasts a total head lift of up to 85 feet, allowing it to handle tasks that require significant vertical pumping. The pump's suction and discharge ports both measure three inches in diameter, facilitating a high volume of water flow and ensuring compatibility with standard hoses and fittings.

Designed for rugged environments, the PKX301ST is encased in a durable steel frame that protects it from physical damage while maintaining portability. The pump's impeller and volute are constructed from cast iron, enhancing their resistance to wear and extending the lifespan of the unit. It includes a self-priming feature, which simplifies the operation by eliminating the need for manual priming.

The Subaru PKX301ST also incorporates a mechanical seal made of carbon ceramic, offering improved durability and leak prevention. Its compact design and ergonomic handle make it easy to transport and operate in various locations. Overall, the Subaru PKX301ST Pump provides a reliable, high-capacity solution for demanding water transfer needs, underpinned by Subaru's reputation for engineering excellence and innovation.

Subaru PKX301ST Pump F.A.Q.

How do I start the Subaru PKX301ST Pump?

To start the Subaru PKX301ST Pump, ensure the fuel valve is open, set the choke to the closed position if the engine is cold, turn the engine switch to the 'ON' position, and pull the recoil starter grip until the engine starts.

What type of fuel should I use for the Subaru PKX301ST Pump?

Use unleaded gasoline with an octane rating of 86 or higher. Avoid using ethanol blends exceeding 10% which can damage the engine.

How can I troubleshoot if the pump doesn't start?

Check if there's fuel in the tank, ensure the spark plug is functioning, inspect the air filter for clogs, and verify that the engine switch is in the 'ON' position.

What regular maintenance does the Subaru PKX301ST Pump require?

Regular maintenance includes checking the oil level before each use, cleaning the air filter every 50 hours, replacing the spark plug yearly, and draining the fuel tank if stored for an extended period.

How do I change the oil in the Subaru PKX301ST Pump?

To change the oil, warm up the engine, stop it, and remove the oil cap. Drain the oil completely, then refill with SAE 10W-30 oil until it reaches the top of the filler neck.

What should I do if the pump is not priming?

Ensure the suction hose is airtight and check for obstructions. Fill the pump casing with water to help establish priming, and ensure the discharge valve is slightly open.

How do I store the Subaru PKX301ST Pump when not in use?

For storage, drain the fuel tank, run the engine until it stops to clear the carburetor, and store the pump in a dry, covered location. Perform regular checks on the pump condition.

Can I use the Subaru PKX301ST Pump for pumping seawater?

No, the pump is not designed for corrosive fluids such as seawater. Use the pump only with clean water to avoid damage to internal components.

What could cause the pump to lose pressure during operation?

Pressure loss can be caused by air leaks in the suction line, clogged filters, or worn pump components. Inspect and replace any faulty parts to restore pressure.

How do I clean the air filter on the Subaru PKX301ST Pump?

Remove the air filter cover, take out the filter, and wash it with warm soapy water. Rinse thoroughly, let it dry, and apply a light coat of engine oil before reinstalling.