1. Introducció
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. Informació important de seguretat
ADVERTÈNCIA: Si no es segueixen aquestes instruccions, es poden produir lesions greus o la mort.
- 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.
- Mantingueu els nens i el personal no autoritzat allunyats de la bomba durant el funcionament.
- Aquest producte us pot exposar a productes químics, inclòs el plom, que l'estat de Califòrnia sap que causa càncer i defectes congènits o altres danys reproductius. Per a més informació, visiteu www.P65Warnings.ca.gov.
3. Contingut del paquet
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
- Mànega de combustible
- Cable d'alimentació
- Mounting Hardware (Spin Collar)
- Manual d'instruccions

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. Configuració i instal·lació
Proper installation is crucial for the safe and effective operation of your fuel transfer pump.
4.1 Muntatge de la bomba
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 Connexió elèctrica
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. Instruccions de funcionament
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 minuts ON, 30 minuts 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. Manteniment
Regular maintenance ensures the longevity and reliable performance of your pump.
6.1 Neteja de la bomba
- Keep the exterior of the pump clean and free from dirt and debris.
- Netegeu la bomba amb un anunciamp tela. No utilitzeu productes químics aggressivs ni netejadors abrasius.
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.
- Desconnecteu la bomba de la font d'alimentació.
- 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 Inspecció general
- 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. Solució De Problemes
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.
| Problema | Causa possible | Solució |
|---|---|---|
| La bomba no arrenca. | 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. |
| La bomba és sorollosa. | 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. Especificacions
Technical specifications for the GPI M-240 Series Fuel Transfer Pump (Model M-240S-MU).
| Característica | Detall |
|---|---|
| Marca | GPI |
| Número de model | M-240S-MU |
| Caudal | 15 GPM (galons per minut) |
| Voltage | 24 volts CC |
| Cicle de treball | 30 minuts ON, 30 minuts OFF |
| Pressió de funcionament | 15 psi (1.03 bar) |
| Temperatura de funcionament | -20 °F a 125 °F (-29 °C a 52 °C) |
| Material | Corrosion-Resistant Diecast Aluminum |
| Tipus de broquet | Manual Shut-off Nozzle (Unleaded) |
| Tipus de muntatge | Spin Collar |
| Mida de la connexió d'entrada | 1 polzades |
| Mida de connexió de presa | 0.75 polzades |
| Certificacions | UL Listed to U.S. and Canadian Standards, CSA |
| Dimensions del producte (L x A x A) | 19 x 16 x 9 polzades |
| Pes de l'article | 24.5 lliures |

Figura 8.1: Dimensionalment sobrepassatview of the GPI M-240 Series Fuel Transfer Pump, showing key measurements.
9. Garantia i Suport
9.1 Informació de la garantia
The GPI M-240 Series Fuel Transfer Pump comes with a 2 any de garantia 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 Atenció al client
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 weblloc web o a través del venedor on vau comprar el producte.
Visit the official GPI Store on Amazon: GPI Store




