DeVilbiss Finishline 4 FLG-670 HVLP Gravity Feed Paint Gun

Introduction

This instruction manual provides essential information for the safe and effective use, setup, operation, and maintenance of your DeVilbiss Finishline 4 FLG-670 HVLP Gravity Feed Paint Gun. Please read this manual thoroughly before operating the equipment to ensure optimal performance and user safety. The Finishline 4 series incorporates advanced atomization technology, precision-machined air caps, and fluid nozzles to deliver a high-quality finish with soft, uniform spray patterns and high transfer efficiency.

Safety Information

Always adhere to the following safety guidelines when using this paint gun:

• The system contains pressurized liquids and chemicals.
• Use in a well-ventilated area to prevent inhalation of fumes.
• Avoid direct skin or eye contact with paint materials and solvents. Wear appropriate personal protective equipment (PPE), including gloves, eye protection, and a respirator.
• Do not ingest any paint materials or solvents.
• Keep the paint gun and all associated materials out of reach of children.
• Ensure all connections are secure before pressurizing the system.

Package Contents

Verify that all components are present in the package:

• DeVilbiss FLG-670 HVLP Paint Gun
• 900cc Aluminum Cup
• Fluid Tip 1.3mm
• Fluid Tip 1.5mm
• Fluid Tip 1.8mm
• Air Adjusting Valve with Gauge

Setup

Proper setup is crucial for optimal performance. Follow these steps:

1. Initial Cleaning: Before first use, thoroughly clean the paint gun to remove any manufacturing residues. Disassemble the gun and clean all internal passages and components with an appropriate solvent.
2. Attach Air Supply: Connect your air compressor to the paint gun. The gun requires 13 CFM at 23 PSI for optimal operation. Ensure your air supply can meet these requirements.
3. Install Fluid Tip: Select the appropriate fluid tip (1.3mm, 1.5mm, or 1.8mm) based on the viscosity of the material you will be spraying. Securely install it onto the gun.
4. Attach Air Cap: Securely attach the air cap over the fluid tip.
5. Attach Gravity Cup: Screw the 900cc aluminum cup onto the top of the gun.
6. Fill Cup: Fill the gravity cup with your prepared paint material. Ensure the material is properly mixed and strained according to the paint manufacturer's instructions.

Operating Instructions

Achieve professional results by following these operating guidelines:

1. Air Pressure Adjustment: Set the air pressure at the gun's regulator to approximately 23 PSI. Depending on your material and desired finish, you may need to fine-tune this pressure. Test on a scrap piece to find the optimal setting, sometimes slightly lower pressures can yield better results.
2. Fan Pattern Adjustment: Adjust the fan control knob to achieve the desired spray pattern width.
3. Fluid Control Adjustment: Adjust the fluid control knob to regulate the amount of material being sprayed.
4. Spraying Technique: Maintain a consistent distance and speed while spraying. Overlap each pass by approximately 50% to ensure even coverage. The gun is designed to produce soft, uniform spray patterns.
5. Tip Selection: Use the 1.3mm tip for lighter materials like base coats, the 1.5mm for general purpose, and the 1.8mm for heavier materials like primers or high-build coatings.

Maintenance

Regular cleaning and maintenance will extend the life of your paint gun and ensure consistent performance.

1. Immediate Cleaning: Clean the gun immediately after each use. Do not allow paint to dry inside the gun.
2. Disassembly: Disassemble the air cap, fluid tip, and fluid needle.
3. Cleaning Components: Clean all components thoroughly with an appropriate solvent. The anodized internal passages and body are designed for easy cleaning. Use a cleaning brush kit for small orifices.
4. Lubrication: Lightly lubricate moving parts and threads with a non-silicone lubricant designed for paint guns.
5. Storage: Store the clean and dry paint gun in a safe place.

Troubleshooting

If you encounter issues, consider the following common solutions:

• Uneven Spray Pattern: Check for a clogged air cap or fluid tip. Ensure the air cap is properly aligned and tightened. Verify consistent air pressure.
• Orange Peel Effect: This can be caused by incorrect air pressure (too high or too low), improper fluid viscosity, spraying too far from the surface, or moving too fast. Adjust air pressure, thin paint if necessary, and refine spraying technique.
• No Paint Flow: Check if the fluid tip is clogged, the fluid needle is stuck, or the gravity cup is empty. Ensure the fluid control knob is open.
• Leaking: Inspect seals and O-rings for damage or improper seating. Tighten all connections.

Specifications

Warranty and Support

This DeVilbiss product is covered by a Manufacturer Warranty. For specific details regarding warranty coverage, terms, and conditions, please refer to the documentation included with your purchase or visit the official DeVilbiss website. For technical support, replacement parts, or service inquiries, please contact DeVilbiss customer service through their official channels.