1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your SHURFLO 4008-101-A65 Revolution 12V RV Water Pump. Designed for performance, durability, and reliability, this pump is suitable for RV and marine freshwater systems. It features a one-piece diaphragm and internal bypass for consistent water flow, reduced cycling, and quiet operation. The pump can run dry without damage and offers flexible mounting options.
Figure 1: SHURFLO 4008-101-A65 RV Water Pump, showing its compact design and wiring connections.
2. Safety Information
- Electrical Safety: Ensure all electrical connections are made by a qualified individual and comply with local codes. Disconnect power before servicing the pump.
- Voltage: This pump operates on 12 VDC. Connecting it to an incorrect voltage supply can cause damage and pose a safety hazard.
- Liquid Content: The pump may contain residual liquid from factory testing. This is normal and does not indicate a defect.
- Flammable Liquids: DO NOT PUMP FLAMMABLE LIQUIDS. Pumping flammable liquids can result in explosion, injury, or death.
- Eye Protection: Always wear appropriate eye protection when working with plumbing systems.
Figure 2: Important consumer notice regarding factory testing liquid.
3. Specifications
The following table details the technical specifications for the SHURFLO 4008-101-A65 RV Water Pump:
| Feature | Specification |
|---|---|
| Model Number | 4008-101-A65 |
| Voltage | 12 VDC |
| Maximum Amp Draw | 7.5 Amps |
| Flow Rate | 3.0 GPM (11.4 LPM) |
| Pressure Shut-off | 55 PSI (3.7 Bar) |
| Self-Priming | Up to 6 feet vertical lift |
| Dimensions (L x W x H) | 4.9” x 8.1” x 4.3” (125mm x 206mm x 110mm) |
| Material | Aluminum, Plastic |
| Weight | Approximately 0.01 Ounces (Note: This weight seems incorrect based on typical pump weights, please verify actual product weight.) |
| Mounting | Installs in any position |
| Features | Internal bypass, runs dry without damage, built-in check valve |
Figure 3: Top view of the pump, displaying model number and key specifications on the label.
4. Setup and Installation
Proper installation is crucial for optimal pump performance and longevity. Follow these guidelines:
- Mounting Location: The pump can be mounted in any position. Choose a dry, accessible location that allows for future maintenance. Secure the pump firmly to a solid surface to minimize vibration and noise.
- Inlet Strainer: An inlet strainer (not included) is required to protect the pump from debris and particulates. Install the strainer on the inlet side of the pump.
- Plumbing Connections: The pump features threaded connections. Use appropriate fittings to connect to your 1/2-inch flexible water tubing. Ensure all connections are tight to prevent leaks. The pump has a built-in check valve for backflow protection.
- Electrical Wiring: Connect the pump to a 12 VDC power source. The red wire is positive (+), and the black wire is negative (-). Install an inline fuse (recommended slow blow fuse: 10 Amp) on the positive wire as close to the power source as possible. Ensure all wiring is properly insulated and protected.
- Self-Priming: The pump is self-priming up to 6 feet of vertical lift. Ensure the inlet line is submerged in water for initial priming.
Figure 4: Side view of the pump, showing mounting points and general construction.
Figure 5: Front view of the pump, highlighting the inlet and outlet ports and electrical connections.
5. Operating Instructions
Once installed, operating your SHURFLO pump is straightforward:
- Initial Start-up: After installation, open all faucets in your system to allow air to escape. Turn on the pump's power supply. The pump will begin to prime itself and push water through the system.
- Air Purging: Allow the pump to run for several minutes until a steady stream of water flows from all faucets and all air is purged from the system. Close the faucets. The pump should then build pressure and shut off automatically.
- Automatic Operation: The pump is designed for automatic operation. It will turn on when a faucet is opened and the system pressure drops, and turn off when the faucet is closed and the pressure is restored. The internal bypass ensures quiet, low-cycling operation.
- Dry Running: The pump is designed to run dry without damage, providing protection if your water tank runs empty. However, prolonged dry running is not recommended.
6. Maintenance
Regular maintenance helps ensure the longevity and efficient operation of your pump:
- Inlet Strainer Cleaning: Periodically inspect and clean the inlet strainer to prevent debris from entering the pump and reducing flow.
- Connection Inspection: Regularly check all plumbing connections for leaks and electrical connections for corrosion or looseness.
- Mounting Screws: Inspect the pump's mounting screws periodically, especially in high-vibration environments, to ensure they remain secure.
- Winterization: In freezing temperatures, the pump and plumbing system must be properly winterized to prevent damage from ice expansion. Consult your RV or marine vehicle's manual for specific winterization procedures.
7. Troubleshooting
If you encounter issues with your pump, refer to the following common problems and solutions:
- Pump Runs Continuously / Does Not Shut Off:
- Air in System: Ensure all air is purged from the system by opening faucets until a steady stream of water flows.
- Leaks: Check all plumbing connections, faucets, and water lines for leaks. Even small leaks can cause the pump to cycle.
- Low Water Supply: Verify that there is sufficient water in your tank.
- Pressure Switch: The pump has an internal pressure switch. If the issue persists after checking for air and leaks, the pressure switch may require adjustment or replacement. Consult a qualified technician.
- No Water Flow:
- No Power: Check the power supply, fuse, and electrical connections.
- Empty Water Tank: Ensure the water tank is not empty.
- Clogged Strainer/Inlet: Inspect and clean the inlet strainer. Check the inlet line for obstructions.
- Air Lock: Try to re-prime the pump by opening a faucet closest to the pump.
- Low Pressure / Pulsating Flow:
- Clogged Strainer/Filter: Clean the inlet strainer.
- Air in System: Purge air from the system.
- Low Voltage: Ensure the pump is receiving adequate 12 VDC. Check for loose or corroded electrical connections.
- Kinked Hoses: Inspect inlet and outlet hoses for kinks or restrictions.
- Excessive Noise:
- Loose Mounting: Ensure the pump is securely mounted.
- Vibration: Use rubber grommets or a flexible mounting pad to reduce vibration transfer.
- Air in System: Air can cause noisy operation. Purge the system.
- Debris: A clogged strainer or debris inside the pump can cause noise.
8. Warranty and Support
SHURFLO products are manufactured to high-quality standards and typically come with a limited warranty. For specific warranty details, including coverage period and terms, please refer to the documentation included with your purchase or visit the official SHURFLO website. For technical support, replacement parts, or service inquiries, contact SHURFLO customer service directly.
