Generac 6922 Gas Powered Pressure Washer User Manual

Important Safety Instructions

Before operating the Generac 6922 pressure washer, read and understand all safety warnings and instructions in this manual. Failure to follow these instructions may result in serious injury or property damage.

• Always wear appropriate personal protective equipment, including eye protection, hearing protection, and protective footwear.
• Never point the spray gun at people, pets, or electrical devices. The high-pressure spray can cause severe injury.
• Ensure all connections are secure before starting the unit to prevent leaks and loss of pressure.
• Operate the pressure washer in a well-ventilated area to avoid carbon monoxide poisoning from engine exhaust.
• Do not operate the unit if any parts are damaged or missing. Contact Generac customer support for replacement parts.
• Keep children and bystanders away from the operating area.
• Use only approved fuels and oils as specified in this manual. Store fuel in approved containers and away from ignition sources.
• Always engage the spray gun trigger safety lock when not spraying to prevent accidental discharge.

Product Overview

The Generac 6922 is a gas-powered pressure washer designed for medium-duty residential cleaning tasks. It delivers 2800 PSI and 2.4 GPM, making it suitable for cleaning decks, siding, driveways, and vehicles. Key features include an ergonomic spray gun, integrated detergent tank, and quick-change nozzle tips.

Figure 1: Front view of the Generac 6922 Gas Powered Pressure Washer.

Key Components

• Engine: Generac OHV horizontal-shaft engine provides reliable power.
• Pump: Delivers high-pressure water for effective cleaning.
• Spray Gun: Ergonomic design with cushion grip and easy-to-pull trigger for reduced fatigue.
• High-Pressure Hose: 25-foot hose for extended reach.
• Nozzle Tips: Includes 0-degree, 25-degree, 40-degree, and soap nozzles for various applications.
• Detergent Tank: Integrated 0.5-gallon tank for convenient on-board detergent storage.
• Wheels: 10-inch never-flat wheels for easy maneuverability across different terrains.
• Control Panel: User-friendly controls for on/off, choke, and fuel shutoff.

Figure 2: Front view of the pressure washer, showing the control panel and spray gun holder.

Figure 3: Side view of the pressure washer, highlighting the engine and pump assembly.

Figure 4: Rear view of the pressure washer, showing the hose connection point.

Figure 5: Close-up of the integrated hose storage on the handle.

Figure 6: Close-up of the Generac OHV engine, showing the fuel cap and pull start.

Figure 7: Close-up of the integrated 0.5-gallon detergent tank.

Figure 8: Close-up of the pump connections, including the water inlet and high-pressure outlet.

Setup and Assembly

1. Unpacking

Carefully remove all components from the packaging. Inspect for any damage during shipping. Ensure all parts listed in the packing list are present.

2. Handle Assembly

1. Slide the upper handle assembly onto the lower frame until the spring buttons engage.
2. Secure the handle with the provided knobs or bolts, ensuring it is firmly in place.

3. Connecting the Spray Gun and Hose

1. Connect the high-pressure hose to the pump outlet. Tighten securely, preferably with a wrench to prevent leaks.
2. Connect the other end of the high-pressure hose to the spray gun. Ensure a tight connection.
3. Insert the desired quick-change nozzle tip into the spray gun wand until it clicks into place.

4. Adding Engine Oil

The engine may be shipped without oil. Refer to the engine manual for specific oil type and capacity. Typically, 10W-30 oil is recommended. Do not overfill.

1. Place the pressure washer on a level surface.
2. Remove the oil fill cap/dipstick.
3. Slowly add the recommended engine oil until it reaches the full mark on the dipstick.
4. Replace the oil fill cap/dipstick.

5. Adding Fuel

Use fresh, unleaded gasoline with an octane rating of 87 or higher. Do not use E85 fuel. Always add fuel in a well-ventilated area away from ignition sources.

1. Ensure the engine is off and cool.
2. Remove the fuel cap.
3. Fill the fuel tank, leaving some space for expansion. Do not overfill.
4. Securely replace the fuel cap.

6. Connecting Water Supply

Connect a standard garden hose to the water inlet on the pump. Ensure the garden hose is free of kinks and has sufficient flow. Turn on the water supply completely before starting the engine.

Operation

1. Pre-Start Checklist

• Check engine oil level.
• Check fuel level.
• Ensure water supply is connected and turned on.
• Select and install the appropriate nozzle.
• Ensure all hose connections are tight.

2. Starting the Engine

1. Open the fuel valve (if equipped).
2. Move the choke lever to the 'CHOKE' position (cold engine).
3. Set the engine switch to 'ON'.
4. Pull the starter rope firmly until the engine starts.
5. Once the engine starts, gradually move the choke lever to the 'RUN' position.
6. Allow the engine to warm up for a few moments.

3. Using Detergent

The integrated 0.5-gallon detergent tank allows for easy application of cleaning solutions.

1. Fill the detergent tank with pressure washer safe detergent.
2. Install the black soap nozzle onto the spray gun. This nozzle activates the detergent injector.
3. Spray the detergent onto the surface to be cleaned. Allow it to soak for a few minutes (do not let it dry).
4. Switch to a high-pressure nozzle (e.g., 25-degree) to rinse the surface thoroughly.

4. Nozzle Selection

The Generac 6922 includes four quick-change nozzle tips:

• 0-degree (Red): Pin-point stream for intense cleaning of small, tough spots. Use with extreme caution.
• 25-degree (Green): Fan spray for general cleaning of most surfaces.
• 40-degree (White): Wide fan spray for gentle cleaning of delicate surfaces.
• Soap (Black): Low-pressure stream for applying detergents.

5. Cleaning Procedures

• Always start spraying with the nozzle a safe distance from the surface and move closer as needed.
• Use overlapping strokes to ensure even cleaning.
• Work from top to bottom when cleaning vertical surfaces to prevent streaking.

6. Shutting Down

1. If using detergent, flush the system with clean water by running the pressure washer with the soap nozzle in a bucket of clean water until all detergent is cleared.
2. Turn off the engine switch.
3. Turn off the water supply.
4. Squeeze the spray gun trigger to release any remaining pressure in the system.
5. Disconnect the garden hose and high-pressure hose.

Maintenance

Regular maintenance ensures optimal performance and extends the life of your pressure washer. Always perform maintenance with the engine off and cool, and the spark plug wire disconnected.

1. Engine Oil Change

Change the engine oil after the first 5 hours of operation, then every 50 hours or annually, whichever comes first. Refer to the engine manual for detailed instructions.

2. Air Filter Cleaning/Replacement

Inspect the air filter regularly and clean or replace it as needed, especially in dusty conditions. A dirty air filter can reduce engine performance.

3. Spark Plug Inspection

Inspect the spark plug annually or every 100 hours. Clean or replace if fouled or damaged. Ensure proper gap setting.

4. Pump Maintenance

After each use, flush the pump with clean water. For extended storage, use a pump protector to prevent freezing and corrosion.

5. Storage

Before storing the pressure washer for an extended period:

• Drain all fuel from the tank or add a fuel stabilizer.
• Drain the carburetor.
• Change the engine oil.
• Apply pump protector.
• Store in a clean, dry, and frost-free area.

Troubleshooting

Technical Specifications

Warranty Information

This Generac pressure washer is covered by a manufacturer's limited warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the warranty card included with your product or visit the official Generac website. Keep your proof of purchase for warranty claims.

Customer Support

For technical assistance, replacement parts, or service inquiries, please contact Generac customer support. You can find contact information on the Generac website or in the documentation provided with your pressure washer. Have your model number (6922) and serial number ready when contacting support.