WOJET 20-Inch Pressure Washer Surface Cleaner (Model PA7605) Instruction Manual

Introduction

Thank you for choosing the WOJET 20-Inch Pressure Washer Surface Cleaner. This commercial-grade attachment is engineered for superior cleaning performance on large flat surfaces such as concrete driveways, sidewalks, decks, and patios. Featuring a durable stainless steel construction, four universal wheels, and dual handles, it offers enhanced mobility and comfort during operation. This manual provides essential information for safe setup, effective operation, and proper maintenance of your surface cleaner.

Important Safety Information

Always read and understand all safety warnings and instructions before operating this product. Failure to follow warnings and instructions may result in serious injury.

• Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and hearing protection.
• Ensure all connections are securely tightened before starting the pressure washer. Leaks can cause injury or damage.
• Do not use the surface cleaner on raised obstacles or uneven surfaces, as striking an object can damage the unit or cause personal injury.
• Keep hands and feet away from the rotating spray bar during operation.
• Always turn off the pressure washer and release pressure before performing any maintenance or changing nozzles.
• This surface cleaner is designed for use with pressure washers above 2000 PSI and 2 GPM. Using it with a machine below these specifications may result in suboptimal performance.

Package Contents

Verify that all items listed below are included in your package:

• WOJET 20-Inch Pressure Washer Surface Cleaner unit
• Dual handles (assembly required)
• High-pressure hose for connection
• 2 x 25020 replacement nozzles
• Nozzle cleaner tool
• Tool kit (includes manual, Teflon tape, assembly rings, and pins)

Setup and Assembly

Follow these steps to assemble your WOJET Surface Cleaner:

1. Attach the dual handles to the main surface cleaner unit using the provided assembly rings and pins. Ensure they are securely fastened.
2. Connect the high-pressure hose from the surface cleaner's swivel to the pressure washer gun.
3. Apply Teflon tape to the threads of all connections to prevent leaks. Tighten all connections firmly with a wrench.
4. Connect the 3/8" Quick Plug inlet of the surface cleaner to your pressure washer hose. Ensure a secure, leak-free connection.

For a visual guide on assembly, please refer to the official video below:

Pressure Washer Compatibility

This WOJET Surface Cleaner is designed for optimal performance with pressure washers meeting the following criteria:

• Minimum Pressure: 2000 PSI
• Maximum Pressure: 4500 PSI
• Minimum Flow Rate: 2 GPM
• Maximum Flow Rate: 4 GPM
• Inlet Connection: 3/8" Quick Plug

It is compatible with most gas and electric pressure washers that meet these specifications. The unit is also suitable for use with hot water machines. Adapters may be required for pressure washers with different connection types (e.g., M22-14mm to 3/8" Female) and are not included.

Image: Connection compatibility guide. This image illustrates various connection types and adapters that may be needed to connect the surface cleaner to different pressure washer hoses.

Operating Instructions

For best results and to ensure safety, follow these operating guidelines:

1. Ensure all connections are secure and leak-free.
2. Start your pressure washer according to its manufacturer's instructions.
3. Hold the surface cleaner's handles firmly and pull the trigger on the pressure washer gun to start the water flow.
4. Walk slowly and steadily behind the surface cleaner, allowing the dual high-pressure water jets to thoroughly clean the surface. The four universal wheels provide smooth maneuverability.
5. Overlap each pass slightly to ensure complete and streak-free cleaning.
6. For edges, corners, or stubborn stains, you may need to use a standard pressure washer wand or the included spray nozzles for targeted cleaning.
7. The high-density nylon brush skirt helps contain splash-back, keeping you drier during operation.

Image: Multi-application of the surface cleaner. This image shows the product effectively cleaning different surfaces including concrete, brick, wood, and tile.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your surface cleaner:

• Swivel Care: The fully sealed and pre-greased swivel is designed to prevent clogging from debris and minimize maintenance. No additional greasing is typically required.
• Nozzle Cleaning: If the water jets become weak or uneven, the nozzles may be clogged. Use the provided nozzle cleaner tool to clear any blockages.
• Nozzle Replacement: The package includes 2 x 25020 replacement nozzles. If nozzles become damaged or worn, replace them to maintain cleaning efficiency.
• Storage: After each use, rinse the surface cleaner thoroughly with clean water. Store in a dry, protected area to prevent rust and damage.

Image: Upgraded durability and maintenance. This image highlights the fully sealed and pre-greased swivel designed for longevity and minimal maintenance.

Troubleshooting

• Water Leaks: Check all hose connections. Ensure Teflon tape is properly applied and connections are tightened firmly.
• Uneven or Weak Spray: Nozzles may be clogged. Use the nozzle cleaner tool to clear any debris. If severely damaged, replace with the spare nozzles.
• Poor Cleaning Performance: Verify that your pressure washer meets the minimum PSI (2000 PSI) and GPM (2 GPM) requirements. Ensure you are moving the cleaner slowly enough for thorough cleaning.
• Excessive Vibration: This can indicate a damaged nozzle or an issue with the rotating spray bar. Inspect nozzles for damage and replace if necessary.

Specifications

Warranty and Support

WOJET is committed to providing high-quality products and excellent customer service. Your surface cleaner is backed by a life-long warranty against material defects and workmanship.

For any assistance, questions, or concerns, please do not hesitate to contact WOJET customer support. We promise to reply within 24 hours, 365 days a year. Our dedicated team is ready to help you unleash the power of clean.