Subaru PKX401 Parts Manual

Pages 30

Year 2002

Language(s)

of 30

Subaru PKX401 Pump Specification

The Subaru PKX401 Pump is a robust and efficient centrifugal pump designed for a variety of water transfer applications. It features a powerful air-cooled, 4-stroke Subaru EX engine known for its reliability, fuel efficiency, and low emissions. The engine displacement is approximately 404cc, ensuring substantial power output to handle demanding tasks. The pump offers a maximum flow rate of up to 499 gallons per minute, making it suitable for large-scale dewatering projects, irrigation, and construction site water removal.

The pump is equipped with a 4-inch suction and discharge port, facilitating rapid water movement. It is crafted with a high-quality aluminum alloy volute and impeller, enhancing durability while reducing overall weight for easier transportation and installation. The mechanical seal is made of carbon ceramic, providing excellent resistance to wear and corrosion, thereby extending the pump's operational life.

The Subaru PKX401 Pump is designed with a sturdy steel roll cage that offers protection and stability during operation. It includes an easy-access control panel for straightforward operation and maintenance, featuring a fuel shut-off valve, throttle control, and an oil alert system to prevent engine damage from low oil levels. The pump's total head lift is approximately 98 feet, and it can achieve a suction lift of up to 26 feet, allowing it to effectively move water over significant distances and elevations.

This pump is built for heavy-duty performance in challenging environments, offering reliability and efficiency for professionals in construction, agriculture, and emergency services. It represents a blend of engineering excellence and practical design, making it a valuable asset for any water management needs.

Subaru PKX401 Pump F.A.Q.

How do I start the Subaru PKX401 pump?

To start the Subaru PKX401 pump, ensure the fuel valve is open, set the choke to the closed position, and pull the starter grip lightly until resistance is felt, then pull briskly. Once the engine starts, gradually move the choke to the open position.

What type of fuel is recommended for the Subaru PKX401 pump?

The Subaru PKX401 pump is designed to run on unleaded gasoline with an octane rating of 87 or higher. Avoid using fuel with more than 10% ethanol.

How often should the oil be changed in the Subaru PKX401 pump?

It is recommended to change the oil every 50 hours of operation or at least once a season. Use SAE 10W-30 oil for optimal performance.

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

If the pump won't start, check for fuel availability, ensure the spark plug is not fouled, verify the air filter is clean, and check that the oil level is adequate.

What is the proper way to store the Subaru PKX401 pump for an extended period?

To store the pump, drain the fuel from the tank and carburetor, change the oil, remove the spark plug and add a teaspoon of oil into the cylinder, then pull the starter rope slowly to distribute the oil. Store in a dry, well-ventilated area.

How do I clean the air filter on the Subaru PKX401 pump?

To clean the air filter, remove it from the housing, wash it in warm soapy water, rinse thoroughly, and allow it to dry completely. Lightly oil the filter before reinstallation.

What should I do if the pump's performance is decreasing?

If the pump's performance is decreasing, check for clogs or obstructions in the hoses and pump casing, ensure the impeller is not damaged, and verify that all connections are secure.

Can I use the Subaru PKX401 pump for pumping seawater?

The Subaru PKX401 pump is not recommended for pumping seawater or any corrosive liquids as it may lead to premature wear and damage.

How do I replace the spark plug on the Subaru PKX401 pump?

To replace the spark plug, first disconnect the spark plug cap. Use a spark plug wrench to remove the old plug, then install the new one, ensuring it is properly gapped and tightened securely. Reattach the spark plug cap.

What are the common signs that the pump needs maintenance?

Common signs that the pump needs maintenance include difficulty starting, reduced pumping efficiency, unusual noises, and visible leaks or damage in the pump components.