Bedford Precision 20-379 Kit for Graco EM400/EM480 Sprayers - Instruction Manual

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of the Bedford Precision 20-379 Kit. This kit is designed as a direct replacement for Graco part number 208-940 and is compatible with Graco EM400 and EM480 paint sprayers. Adhering to these instructions will help ensure optimal performance and longevity of the replacement parts.

2. Safety Information

WARNING: Failure to follow these safety instructions may result in serious injury or property damage.

• Always use the paint sprayer and its components in a well-ventilated area to prevent inhalation of fumes.
• Avoid direct contact with skin and eyes. Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and protective clothing, when handling paint and operating the sprayer.
• Keep all components and paint materials away from heat sources, open flames, and sparks. Paint and solvents can be highly flammable.
• Do not ingest any part of the kit or associated paint materials. In case of accidental ingestion, seek immediate medical attention.
• Dispose of all contents and containers in accordance with local, state, and federal regulations for hazardous waste.
• Before performing any maintenance or part replacement, ensure the paint sprayer is depressurized and disconnected from its power source.

3. Package Contents

The Bedford Precision 20-379 Kit includes the necessary components for replacing Graco part 208-940. The kit is designed for compatibility with Graco EM400 and EM480 models.

Image 1: Components of the Bedford Precision 20-379 Kit. This kit includes replacement parts for Graco EM400 and EM480 paint sprayers, designed to replace Graco part number 208-940.

The kit typically contains components required for the specific repair or maintenance of the EM400 and EM480 sprayer models. Refer to your Graco sprayer's original manual for detailed diagrams of the parts being replaced.

4. Setup and Installation

This kit contains replacement parts. Installation should be performed by individuals familiar with paint sprayer maintenance. Always refer to the original Graco EM400 or EM480 service manual for specific disassembly and reassembly procedures.

1. Preparation: Ensure the paint sprayer is completely depressurized, cleaned, and disconnected from any power source. Remove any remaining paint or solvent from the system.
2. Disassembly: Carefully disassemble the section of the sprayer where the 208-940 part is located, following the Graco service manual. Pay attention to the order and orientation of all components.
3. Part Replacement: Replace the worn or damaged Graco 208-940 components with the corresponding parts from the Bedford Precision 20-379 Kit. Ensure all seals and O-rings are correctly seated and lubricated if necessary (use compatible lubricant).
4. Reassembly: Reassemble the sprayer according to the Graco service manual. Ensure all connections are secure and tightened to the manufacturer's specifications.
5. Testing: Before full operation, perform a pressure test with water to check for leaks and proper function.

5. Operating Instructions

Once the Bedford Precision 20-379 Kit components are correctly installed, the paint sprayer should operate as per its original specifications. Refer to your Graco EM400 or EM480 owner's manual for detailed operating procedures, including:

• Proper priming and depressurizing techniques.
• Recommended paint and tip compatibility.
• Adjusting pressure settings.
• Safe spraying practices.

Always ensure all connections are tight and there are no leaks before starting any painting project.

6. Maintenance

Regular maintenance of your paint sprayer, including the components from this kit, is crucial for extending its lifespan and ensuring consistent performance.

• Cleaning: Thoroughly clean the sprayer after each use according to the Graco manual. This prevents paint buildup and clogging, which can damage internal components.
• Inspection: Periodically inspect the components of the 20-379 kit for signs of wear, damage, or leaks. Replace parts as needed to maintain optimal performance.
• Lubrication: Apply compatible lubricant to moving parts and seals as recommended by the original equipment manufacturer to reduce friction and wear.
• Storage: Store the sprayer and its components in a clean, dry environment, protected from extreme temperatures.

7. Troubleshooting

If you encounter issues after installing the Bedford Precision 20-379 Kit, consider the following common troubleshooting steps:

• Leaks: Check all connections for proper tightening. Inspect O-rings and seals for damage or incorrect seating.
• Loss of Pressure: Ensure the pump is primed correctly. Check for clogs in the filter or tip. Inspect internal components for wear that might cause pressure loss.
• Poor Spray Pattern: This can often be due to a worn spray tip, incorrect pressure settings, or paint viscosity issues. Ensure the kit components are installed correctly and not obstructing flow.
• Sprayer Not Starting: Verify power connection. If the issue persists, consult the original Graco EM400/EM480 manual for electrical troubleshooting.

For complex issues, it is recommended to consult a qualified service technician or refer to the comprehensive troubleshooting guide in your Graco sprayer's manual.

8. Specifications

9. Warranty and Support

For warranty information regarding the Bedford Precision 20-379 Kit, please refer to the official Bedford Precision website or contact their customer support directly. Bedford Precision replacement parts are manufactured to high standards to ensure quality and performance.

For technical support or inquiries about this product, please contact Bedford Precision customer service. When contacting support, please have your product model number (20-379) and details of your Graco sprayer model (EM400 or EM480) available.

You can find more information and contact details on the Bedford Precision Store on Amazon.