Foot pump for fresh water Whale Babyfoot GP4618

The Whale Babyfoot GP4618 foot pump is exclusively designed for freshwater circuits. It must be used only with this type of system aboard your boat.

To replace the diaphragm on your Whale Babyfoot GP4618 pump, follow these steps:

Loosen the worm-drive clamp and remove it from the pump. Peel the diaphragm off the pump body by hand, exposing the spring and its cap. Replace the faulty component, ensuring the spring cap is correctly positioned inside the diaphragm and the spring is properly seated before reassembly. Refit the worm-drive clamp over the diaphragm and tighten it evenly, without over-tightening.

To replace the O-rings on the Whale Babyfoot GP4618 pump fitting:

Unscrew (counterclockwise) the side screws by approximately 2½ turns, without removing them completely. Gently pull on the nipple end or on the fitting and the connecting tube to remove the fitting from the pump body. Remove the O-rings from the fitting body. Insert new O-rings into the appropriate grooves, which can be done easily by hand. Reinstall the fitting with the new O-rings into the body, ensuring the fitting key aligns with the keyways in the Babyfoot pump body, then push it fully in. Tighten the side screws (clockwise) without over-tightening.

Yes, it is strongly recommended to verify the exact part number (GP4618) and ensure this pump is compatible with the equipment already installed on your boat before finalizing your order and proceeding with installation.

The Whale Babyfoot GP4618 foot pump is identified as a main product within Whale’s Babyfoot range.

The Whale Babyfoot GP4618 foot pump is specifically designed to be integrated into freshwater circuits on boats. Its purpose is to provide a manual means of pumping and distributing fresh water aboard.

The Whale Babyfoot GP4618 foot pump is specifically designed for use in freshwater circuits on boats. It allows manual water pumping.

This pump is exclusively designed for freshwater circuits. Its name, "Babyfoot freshwater foot pump", clearly indicates this.

This is a foot pump, meaning it is activated manually using the foot to operate the pumping mechanism. It does not require electrical power.

The main components that can be removed and replaced on the Whale Babyfoot GP4618 pump include:

The diaphragmThe O-rings of the fittingsThe valves (suction valve and discharge valve)

The Whale Babyfoot GP4618 pump is manufactured by Munster Simms Engineering Ltd, located in Bangor, Northern Ireland, United Kingdom.

Yes, the Whale Babyfoot GP4618 pump is designed to be serviced. The service manual provides detailed instructions for replacing common wear parts such as the diaphragm, O-rings, and valves, making maintenance straightforward.

For maintenance of the Whale Babyfoot GP4618 pump, you will need the following tools:

A standard flathead screwdriver to loosen the tangent clamp screw. A pair of long-nose pliers to remove and install the valves.

To remove and replace the diaphragm:

Use a standard flathead screwdriver to loosen the tangent clamp screw and remove it from the pump. Remove the diaphragm from the pump body by hand, exposing the spring and the spring cap. Replace the defective part, ensuring the spring cap is correctly positioned inside the diaphragm and the spring is properly seated before reassembly. Refit the tangent clamp screw and tighten it around the diaphragm, taking care not to overtighten.

When replacing the diaphragm in the Whale Babyfoot GP4618 pump, ensure the spring cap is correctly positioned inside the diaphragm and the spring is properly seated before reassembling the pump. Additionally, when tightening the tangent screw clamp, avoid over-tightening.

To replace the O-rings on the fittings:

Loosen the side screws (counterclockwise) by about two and a half turns (it is not necessary to remove them completely). Gently pull the end of the fitting (or the fitting connected to its hose) and extract the fitting from the pump body. Remove the old O-rings from the fitting body. Place the new O-rings in the corresponding grooves (this can be done easily by hand). Reinsert the fitting with the new O-rings into the body, ensuring that the mark on the fitting aligns with the mark on the pump body, and push it fully in. Tighten the side screws (clockwise) without over-tightening.

No, it is not necessary to remove the side screws completely to replace the O-rings on the fittings. Simply loosen them (counterclockwise) by about two and a half turns to extract the fitting.

After removing the diaphragm and fittings, use a pair of long-nose pliers to extract the valves:

The suction valve is removed by pulling from the spring chamber.The discharge valve is removed by pulling from the inside diameter of the fitting.

Yes, the service manual indicates that the detailed maintenance procedures for the GP4618 also apply to the GP4618B, CS4619B, and CS4620B models. This suggests a similarity in the design and maintenance of these Babyfoot pumps.