Attwood ASM-Valve, FDV 0 White

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your Attwood ASM-Valve, FDV 0 White (Model: 99IFDV00-1). This product is designed for marine plumbing applications, specifically as a fuel distribution valve. Please read this manual thoroughly before installation and use to ensure proper function and safety.

2. Safety Information

WARNING: Improper installation or use of this valve can lead to fuel leaks, fire, explosion, or serious injury. Always follow all applicable marine safety standards and regulations.

• Ensure the engine is off and cool before beginning any installation or maintenance.
• Disconnect the battery to prevent accidental starting.
• Work in a well-ventilated area to avoid inhaling fuel fumes.
• Have a fire extinguisher readily available.
• Use appropriate personal protective equipment (PPE), such as gloves and eye protection.
• Verify all connections are secure and leak-free before operating the vessel.
• Consult a qualified marine technician if you are unsure about any part of the installation or operation.

3. Setup & Installation

The Attwood ASM-Valve, FDV 0 White is designed as a direct replacement for many existing marine fuel valves. Installation typically involves removing the old valve and securing the new one in its place.

3.1 Tools Required

• Wrenches (appropriate sizes for threaded and flanged connections)
• Thread sealant (fuel-resistant type)
• Hose clamps (if applicable for hose connections)
• Drip pan or absorbent rags

3.2 Installation Steps

1. Prepare the Area: Ensure the fuel system is depressurized and any fuel lines connected to the valve are drained. Place a drip pan beneath the valve to catch any residual fuel.
2. Remove Old Valve: Carefully disconnect the fuel lines from the existing valve. Note the orientation of the old valve for correct installation of the new one.
3. Inspect Connections: Clean any old sealant or debris from the fuel lines and mounting surface.
4. Apply Sealant: Apply a suitable fuel-resistant thread sealant to the threaded inlet connection of the new Attwood ASM-Valve.
5. Install New Valve: Position the new valve and securely connect the threaded inlet. Then, attach the flanged outlet connection, ensuring a tight, leak-free seal.
6. Secure Mounting: If the valve requires mounting to a surface, use appropriate fasteners to secure it firmly.
7. Leak Check: After installation, slowly repressurize the fuel system and carefully inspect all connections for any signs of leaks. Address any leaks immediately before proceeding.

Figure 1: Attwood ASM-Valve, FDV 0 White. This image shows the compact design of the valve with its threaded inlet and flanged outlet connections, ready for marine fuel system integration.

4. Operating Instructions

The Attwood ASM-Valve, FDV 0 White is a simple, single-port fuel distribution valve. Its operation involves controlling the flow of fuel within the marine fuel system.

• Open Position: When the valve handle (if present, or internal mechanism) is in the "open" position, fuel is allowed to flow through the valve.
• Closed Position: When the valve handle is in the "closed" position, fuel flow is stopped.

Always ensure the valve is in the correct position for your intended operation (e.g., open for engine operation, closed for maintenance or storage).

5. Maintenance

Regular inspection and maintenance will ensure the longevity and reliable performance of your Attwood ASM-Valve.

• Visual Inspection: Periodically inspect the valve and surrounding connections for any signs of fuel leaks, corrosion, or physical damage.
• Connection Integrity: Check that all threaded and flanged connections remain tight. Retighten if necessary, but do not overtighten.
• Functionality Check: If the valve has a movable part, ensure it operates smoothly between open and closed positions.
• Cleaning: Keep the exterior of the valve clean from dirt, grime, and fuel residue. Use appropriate cleaning agents that will not damage the valve material (Metal).
• Replacement: If any damage, persistent leaks, or operational issues are observed, replace the valve immediately with an authentic Attwood replacement part.

6. Troubleshooting

This section addresses common issues you might encounter with your Attwood ASM-Valve.

6.1 Fuel Leakage

• Cause: Loose connections, damaged threads, worn seals, or a cracked valve body.
• Solution:
  1. Ensure all connections are properly tightened.
  2. Inspect threads for damage and reapply fuel-resistant thread sealant if necessary.
  3. If the valve body is cracked or seals are visibly damaged, the valve must be replaced.

6.2 Restricted Fuel Flow

• Cause: Valve not fully open, internal blockage, or a faulty valve mechanism.
• Solution:
  1. Verify the valve is in the fully open position.
  2. If the issue persists, the valve may be internally obstructed or faulty and should be replaced.

Note: Many users have found that replacing an old, failing factory valve with this Attwood valve resolves fuel delivery issues. If your boat is experiencing fuel problems, consider this valve as a potential solution before more extensive repairs.

7. Specifications

8. Warranty Information

The Attwood ASM-Valve, FDV 0 White comes with a LIMITED WARRANTY. For specific terms, conditions, and duration of the warranty, please refer to the documentation included with your purchase or contact Attwood Marine directly. Keep your proof of purchase for warranty claims.

9. Customer Support

If you have any questions, require technical assistance, or need to report an issue with your Attwood ASM-Valve, please contact Attwood Marine customer support.

Manufacturer: ATTWOOD

Manufacturer Contact Information: Attwood Marine

For the most current contact details and additional resources, please visit the official Attwood website: www.attwoodmarine.com