5.0Maintenance

5.1Pump Crankcase Lubrication

Proper pressure washer pump crankcase lubrication will help extend the working life of the machine. Follow these important recommended guidelines:

-Change oil after initial 50 hour run-in period.

-Simpson pump oil is recommended as the first choice. Change Simpson pump oil at 250 hour intervals.

-If Simpson pump oil is not available, a high quality 30 weight non-detergent oil may be used. These oils should be changed every 100 hours.

-Direct drive machines should have the pump oil changed at least every 50 hours, regardless of the type of oil used. More frequent oil changes will further enhance the pump’s working life.

-Pump oil level can be checked with a dip stick or, for pumps with oil level sight gauges, viewing the sight gauge. Oil level is correct if at the center of the circle. If oil level is low, fill to correct level with recom- mended oil. DO NOT OVERFILL crankcase!

-Some pumps may not have either a dipstick or sight gauge. Oil levels in these pumps can only be checked by draining the crankcase and measuring the oil amount. If oil level is incorrect, replace with the proper amount and type as recommended by the pump manufacturer.

5.2Preventative Maintenance

-Give model and serial number when ordering parts or requesting information. See Section 1.5, Machine Warning Tags and Specification Plate, Fig. 1-4.

-Read all instructions and familiarize yourself with the unit before operating.

-Keep incoming water filter clean.

-Use only nozzles of size furnished with machine.

-Drain water from pressure hoses, gun and extension and accessories after use.

-Protect pump from freezing. Failure to remove water from the pump in freezing temperatures will result in damaged pump manifold. A winterizing siphon kit (Part No. WK 590-10) is available for this purpose. Using this kit, a 50-50 mixture of ethylene glycol type anti-freeze and water is siphoned into the pump to replace the plain water.

-Use ONLY injector of the size and type designed for your model.

-DO NOT tamper with unloader valve adjustment or alter engine speed.

-DO NOT connect siphon hose to pump inlet for the purpose of siphoning cleaning chemicals through pump. The machine is designed for direct loop up to water supply.

-DO NOT exceed 140° F temperature on incoming water supply.

Gasoline and Diesel Engines:

-Keep air filter clean and engine in tune.

-Check oil level in engine each time gas tank is filled. Change oil in the engine at required intervals, and use only recommended grade engine oil.

-ALWAYS close fuel valve when transporting or storing unit.

-Before storing unit for long periods of time, drain fuel tank and carburetor of all fuel. As an alternative, use a commercially available gasoline preservative additive when storing machine for shorter periods (up to 6 months).

Electric Models:

-Check the condition of the electrical cord. Damaged cords should be replaced.

-DO NOT REMOVE THE GROUND FAULT INTERRUPTER (GFCI) FROM THE ELECTRICAL CORD.

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Simpson PS4240H manual Pump Crankcase Lubrication, Preventative Maintenance
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PS4240H specifications

The Simpson PS4240H is a powerful and versatile gas pressure washer designed for both residential and commercial cleaning tasks. Known for its durability and efficiency, it delivers outstanding cleaning performance, making it an ideal choice for various applications, from washing vehicles to cleaning driveways and decks.

At the heart of the PS4240H is a robust Honda GX200 engine, renowned for its reliability and performance. This 196cc engine generates impressive power, enabling the pressure washer to reach a maximum pressure of 4200 PSI. This powerful output allows users to tackle even the toughest grime and dirt, significantly reducing the time and effort required for cleaning.

One of the standout features of the PS4240H is its high flow rate, which reaches up to 4.0 GPM (gallons per minute). This combination of high pressure and flow rate allows for efficient cleaning, making it ideal for larger areas, such as commercial properties or extensive outdoor spaces. Additionally, the unit comes equipped with a professional-grade generator-style pump that is designed for long-lasting performance, ensuring reliability during demanding cleaning jobs.

The pressure washer features five quick-connect nozzle tips, which enable users to choose the appropriate spray pattern for different tasks. Ranging from 0 degrees to 40 degrees, these nozzles allow for versatile cleaning options, from concentrated streams for tough stains to wider sprays for rinsing large surfaces. This adaptability makes the PS4240H suitable for a broad spectrum of applications.

Durability is another hallmark of the Simpson PS4240H. Its frame is constructed with a heavy-duty steel design, ensuring that it can withstand the rigors of frequent use. The oversized pneumatic tires enhance mobility, making it easier to maneuver across various terrains. Furthermore, the pressure washer features an ergonomic spray gun with a safety lock, promoting ease of use and reducing the risk of accidental activation.

In addition to its impressive technical specifications, the Simpson PS4240H is designed with user convenience in mind. The compact design and built-in storage solutions for accessories such as nozzles and hoses enhance overall functionality.

With features that blend power, efficiency, and durability, the Simpson PS4240H is an excellent investment for both homeowners and professionals seeking a reliable and effective pressure washing solution. Its high-performance capabilities make it a standout choice in the competitive market of pressure washers.
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