1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your GPI M-240 Series Fuel Transfer Pump. Please read this manual thoroughly before installation or operation to ensure proper use and to prevent injury or damage.
The GPI M-240S-MU fuel transfer pump features a rotary gear design and is constructed from corrosion-resistant diecast aluminum. It is specifically designed for agricultural, automotive, and construction applications. The M-240S-MU includes a manual nozzle, fuel hose, and power cord. It operates with a duty cycle of 30 minutes ON and 30 minutes OFF, an operating pressure of 15 psi (1.03 bar), and an operating temperature range of -20°F to 125°F (-29°C to 52°C). This pump is designed for use with a 24-volt power source. The motor is U.L. Listed to U.S. and Canadian Standards.
2. Important Safety Information
WARNING: Failure to follow these instructions may result in serious injury or death.
- Always wear appropriate personal protective equipment (PPE), including eye protection, when operating or maintaining the pump.
- Ensure the pump is used only with compatible fluids as specified by the manufacturer. Do not use with water, corrosive chemicals, or highly volatile liquids not approved for this pump.
- Verify that the power source matches the pump's voltage requirements (24 Volt DC). Incorrect voltage can cause damage to the pump and pose a fire hazard.
- Do not operate the pump in the presence of open flames, sparks, or other ignition sources. Fuel vapors are highly flammable.
- Ensure adequate ventilation when operating the pump, especially in enclosed spaces.
- Regularly inspect hoses, connections, and the pump body for leaks or damage. Replace damaged components immediately.
- Adhere to the specified duty cycle (30 minutes ON, 30 minutes OFF) to prevent motor overheating and prolong pump life.
- Keep children and unauthorized personnel away from the pump during operation.
- This product may expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
3. Package Contents
Before beginning installation, verify that all components are present and undamaged. If any parts are missing or damaged, contact GPI customer service.
- GPI M-240 Series Fuel Transfer Pump Unit
- Manual Shut-off Nozzle
- Fuel Hose
- Power Cord
- Mounting Hardware (Spin Collar)
- Instruction Manual
Figure 3.1: All components included with the GPI M-240 Series Fuel Transfer Pump, including the pump unit, manual nozzle, fuel hose, power cord, and mounting accessories.
4. Setup and Installation
Proper installation is crucial for the safe and effective operation of your fuel transfer pump.
4.1 Mounting the Pump
The M-240S-MU pump features a spin collar mount for easy installation onto a tank or barrel. Ensure the mounting surface is stable and capable of supporting the pump's weight and the weight of the fuel it will transfer.
- Securely attach the pump to the tank opening using the spin collar. Ensure a tight, leak-free connection.
- Position the pump so that the hose and nozzle can reach the desired dispensing location without strain.
Figure 4.1: The GPI M-240 Series Fuel Transfer Pump securely mounted on a fuel tank, ready for operation.
4.2 Connecting Hoses and Nozzle
- Connect the fuel hose to the pump's outlet. Ensure all connections are tight to prevent leaks.
- Attach the manual shut-off nozzle to the other end of the fuel hose.
4.3 Electrical Connection
The pump requires a 24-volt DC power source.
- Connect the power cord to the pump.
- Connect the other end of the power cord to a suitable 24-volt DC power supply. Ensure proper polarity.
- Verify all electrical connections are secure and protected from environmental elements.
5. Operating Instructions
Follow these steps for safe and effective fuel transfer.
- Ensure the pump is securely mounted and all hose and electrical connections are tight.
- Place the nozzle into the receiving tank or container.
- Activate the pump. The pump is designed for a duty cycle of 30 minutes ON, 30 minutes OFF. Adhering to this cycle is critical to prevent motor overheating.
- Begin dispensing fuel by engaging the manual nozzle lever.
- Monitor the fuel transfer process. Do not leave the pump unattended during operation.
- Once the desired amount of fuel has been transferred, release the nozzle lever to stop the flow.
- Deactivate the pump and return the nozzle to its holder.
Figure 5.1: The GPI M-240 Series Fuel Transfer Pump, showing the main unit, hose, and manual shut-off nozzle.
Figure 5.2: Key features of the pump, including the rotary gear design, powder-coated aluminum body, spin collar mount, strainer access, lockable nozzle holder, and manual unleaded nozzle.
6. Maintenance
Regular maintenance ensures the longevity and reliable performance of your pump.
6.1 Cleaning the Pump
- Keep the exterior of the pump clean and free from dirt and debris.
- Wipe down the pump with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
6.2 Strainer Maintenance
The pump is equipped with a strainer to prevent debris from entering the pump mechanism. Regular inspection and cleaning of the strainer are essential.
- Disconnect the pump from the power source.
- Locate the strainer access point (refer to Figure 5.2 for location).
- Carefully remove the strainer cover and extract the strainer element.
- Clean the strainer element thoroughly with a suitable solvent or brush.
- Inspect the strainer for any damage. Replace if necessary.
- Reinstall the clean strainer element and secure the cover.
6.3 General Inspection
- Periodically check all hoses and connections for signs of wear, cracks, or leaks. Replace any damaged components.
- Inspect the power cord for fraying or damage. Ensure electrical connections are secure.
7. Troubleshooting
This section provides solutions to common issues you might encounter with your GPI M-240 Series Fuel Transfer Pump. For problems not listed here, contact GPI customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start. | No power; incorrect voltage; faulty wiring; motor overheating. | Check power source and connections. Ensure 24V DC. Verify wiring. Allow pump to cool down if it has exceeded its duty cycle. |
| Low flow or no flow. | Clogged strainer; kinked hose; air leak in suction line; low fluid level in tank. | Clean strainer. Straighten hose. Check all connections for air leaks. Ensure adequate fuel in the supply tank. |
| Pump is noisy. | Air in system; worn bearings; foreign object in pump. | Check for air leaks in suction line. If noise persists, contact customer support. |
| Fuel leaks from connections. | Loose connections; damaged seals/gaskets; cracked hose. | Tighten all connections. Inspect and replace damaged seals, gaskets, or hoses. |
8. Specifications
Technical specifications for the GPI M-240 Series Fuel Transfer Pump (Model M-240S-MU).
| Feature | Detail |
|---|---|
| Brand | GPI |
| Model Number | M-240S-MU |
| Flow Rate | 15 GPM (Gallons Per Minute) |
| Voltage | 24 Volt DC |
| Duty Cycle | 30 minutes ON, 30 minutes OFF |
| Operating Pressure | 15 psi (1.03 bar) |
| Operating Temperature | -20°F to 125°F (-29°C to 52°C) |
| Material | Corrosion-Resistant Diecast Aluminum |
| Nozzle Type | Manual Shut-off Nozzle (Unleaded) |
| Mounting Type | Spin Collar |
| Inlet Connection Size | 1 Inch |
| Outlet Connection Size | 0.75 Inches |
| Certifications | UL Listed to U.S. and Canadian Standards, CSA |
| Product Dimensions (L x W x H) | 19 x 16 x 9 inches |
| Item Weight | 24.5 Pounds |
Figure 8.1: Dimensional overview of the GPI M-240 Series Fuel Transfer Pump, showing key measurements.
9. Warranty and Support
9.1 Warranty Information
The GPI M-240 Series Fuel Transfer Pump comes with a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service. Please retain your proof of purchase for warranty claims.
9.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact GPI customer support. You can find more information and contact details on the official GPI website or through the retailer where you purchased the product.
Visit the official GPI Store on Amazon: GPI Store
