Simpson Cleaning 3400 PSI Gas Pressure Washer Instruction Manual

Introduction

The Clean Machine by SIMPSON is a fully assembled, lightweight, and easy-to-store gas pressure washer designed for powerful residential cleaning. Featuring a SIMPSON OHV engine and an OEM Technologies axial cam pump, this unit delivers 3400 PSI at 2.5 GPM. Its powder-coated steel frame and 10-inch pneumatic wheels ensure durability and maneuverability, making it ideal for various cleaning tasks around the home.

Figure 1: Overview of the Simpson Cleaning 3400 PSI Gas Pressure Washer.

Setup

Before operating your pressure washer, ensure proper setup for safety and optimal performance.

Unpacking and Assembly

• Carefully remove all components from the packaging.
• Ensure all parts listed in the 'Your Complete Kit' diagram are present.
• Attach the spray gun and lance securely.
• Connect the high-pressure hose to the pump outlet and the spray gun.

Figure 2: All components included in the pressure washer kit.

Initial Fluid Checks

• Engine Oil: Add the included engine oil to the crankcase before first use. Refer to the engine manual for exact capacity and type.
• Fuel: Fill the fuel tank with fresh, unleaded gasoline.

Water Connection

• Connect a garden hose to the water inlet on the pump.
• Turn on the water supply fully.
• Before starting the engine, remove the nozzle from the spray wand and squeeze the trigger to purge air from the pump and high-pressure hose. This may take a few minutes.

Figure 3: Detail of the pump connection for water intake.

Operating Instructions

Follow these steps for safe and effective operation of your pressure washer.

Starting the Engine

1. Ensure the fuel valve is open and the throttle is in the 'Fast' position.
2. If the engine is cold, apply choke.
3. Set the engine switch to 'ON'.
4. Pull the recoil starter handle firmly until the engine starts.
5. Once started, gradually open the choke (if used).

Nozzle Selection and Application

The pressure washer comes with 4 Quick Connect nozzle tips, each designed for specific cleaning applications:

• 0° (Red): Strongest, pinpoint stream for tough, concentrated cleaning. Use with extreme caution.
• 15° (Yellow): Heavy-duty cleaning and stripping. Ideal for removing stubborn dirt.
• 40° (White): Soft touch for delicate surfaces. Suitable for general cleaning and rinsing.
• Soap (Black): Low pressure for detergent application.

Figure 4: Guide to Quick Connect Nozzles.

Always start cleaning from a distance and move closer to the surface as needed to avoid damage. The pressure washer is effective for cleaning patios, decks, driveways, walkways, house exteriors, fences, vehicles, and RVs.

Figure 5: Versatile cleaning applications of the pressure washer.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your pressure washer.

• Engine Oil: Check engine oil level before each use and change according to the engine manual's recommendations.
• Air Filter: Inspect and clean the air filter regularly. Replace if damaged.
• Spark Plug: Check and clean the spark plug periodically. Replace if worn.
• Fuel System: Use fresh fuel and consider a fuel stabilizer for storage periods longer than 30 days.
• Pump: Flush the pump with a pump protector or non-toxic antifreeze before storing for extended periods, especially in freezing temperatures.
• Nozzles: Clean clogged nozzles with a small wire or nozzle cleaning tool.

Troubleshooting

If you encounter issues with your pressure washer, refer to the following common problems and solutions. For detailed troubleshooting, consult the official user manual.

• Engine Fails to Start:
  • Check fuel level.
  • Ensure engine switch is 'ON'.
  • Verify spark plug connection.
  • Check for proper choke setting.
• Low Pressure:
  • Ensure water supply is fully open.
  • Check for kinks in the garden hose or high-pressure hose.
  • Clean or replace clogged nozzle.
  • Inspect water inlet filter for debris.
• Pulsating Pressure:
  • Check for air in the pump (purge system).
  • Ensure adequate water supply.
  • Clean or replace clogged nozzle.

Specifications

Key technical specifications for the Simpson Cleaning 3400 PSI Gas Pressure Washer:

Figure 6: Product dimensions.

Warranty & Support

SIMPSON stands behind its products with a comprehensive warranty:

• Engine: 2-Year Limited Warranty
• Pump: 1-Year Limited Warranty
• Frame: 5-Year Limited Warranty

Figure 7: Warranty details.

For detailed warranty terms, product registration, or technical assistance, please refer to the official documents provided with your product or visit the SIMPSON website. You can also access digital versions of the user guides:

• User Guide (PDF)
• Instructions for Use (IFU) (PDF)
• User Manual (PDF)

For customer support, please refer to the contact information provided at the point of purchase or on the official SIMPSON website.