Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your RUMDS Coffee Machine Replacement Lever. This accessory is designed to enhance the functionality and control of compatible Barsetto BAE02, BAE02s, and Petrus PE3899 coffee machines. Please read this manual carefully before installation and use to ensure proper function and longevity of the product.
Product Overview
The RUMDS Replacement Lever is an upgraded component for specific coffee machines, crafted from durable aluminum. It replaces the standard knob, offering a more tactile and precise control over the coffee machine's output. Its ergonomic design aims to improve the user experience during coffee preparation.

Image 1: The RUMDS Coffee Machine Replacement Lever in silver. This image displays the full form of the lever, highlighting its smooth, metallic finish and ergonomic shape.
Compatibility
This replacement lever is specifically designed for the following coffee machine models:
- Barsetto BAE02
- Barsetto BAE02s
- Petrus PE3899
Please verify your coffee machine model before attempting installation to ensure compatibility.

Image 2: A Petrus PE3899 coffee machine, one of the compatible models for the replacement lever. This image shows the front view of the machine, indicating where the lever would be installed.
Package Contents
Upon opening the package, please ensure all the following items are present:
- 1x RUMDS Coffee Machine Replacement Lever (Silver or Black, depending on purchase)
- 1x Hex Key (for installation)

Image 3: Contents of the RUMDS Replacement Lever package, including a black lever, a hex key, and a diagram illustrating the components and installation.
Installation Instructions
- Power Off: Ensure your coffee machine is turned off and unplugged from the power outlet before beginning installation.
- Locate Existing Knob: Identify the steam or water dispensing knob on your coffee machine that you intend to replace.
- Remove Existing Knob: Depending on your machine model, the existing knob may be pulled off directly or secured with a small screw. If a screw is present, use an appropriate tool (often a small screwdriver or hex key) to loosen and remove it. Carefully detach the old knob.
- Install Replacement Lever: Align the RUMDS Replacement Lever with the shaft on your coffee machine. Gently push it into place. If a screw was removed from the original knob, use the provided hex key to secure the new lever by tightening the screw into the lever's base. Ensure it is firmly attached but do not overtighten.
- Test Functionality: Once installed, plug in and power on your coffee machine. Carefully test the new lever's movement to ensure it rotates smoothly and engages properly with the machine's internal mechanism.

Image 4: A silver RUMDS replacement lever installed on a white coffee machine, viewed from the top. This illustrates the lever's appearance when mounted.

Image 5: A silver RUMDS replacement lever installed on a white coffee machine, viewed from the side. This provides another perspective of the installed lever.
Operating Instructions
The RUMDS Replacement Lever functions identically to the original knob it replaces, providing control over steam or hot water dispensing. Its enhanced design offers a more comfortable grip and potentially finer control.
- Turning On/Off: Rotate the lever to the desired position to activate or deactivate the steam/hot water function, as per your coffee machine's specific operation.
- Adjusting Flow: For machines with variable flow control, the lever allows for smooth adjustments to the intensity of steam or hot water.

Image 6: A hand demonstrating the operation of a black RUMDS replacement lever on a coffee machine. This shows the lever in use, highlighting its ergonomic feel.
Maintenance
To ensure the longevity and appearance of your RUMDS Replacement Lever, follow these simple maintenance guidelines:
- Cleaning: Wipe the lever with a soft, damp cloth. Avoid abrasive cleaners or harsh chemicals, as these can damage the aluminum finish.
- Regular Inspection: Periodically check that the lever remains securely fastened to the coffee machine. If it feels loose, gently tighten the securing screw with the provided hex key.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lever feels loose after installation. | Securing screw not tightened sufficiently. | Gently tighten the securing screw using the provided hex key. Do not overtighten. |
| Lever does not rotate smoothly. | Incorrect alignment during installation or debris in the shaft. | Remove the lever, inspect the shaft for obstructions, and re-install carefully, ensuring proper alignment. |
| Coffee machine function (steam/water) is not responding. | Lever not fully engaging the internal mechanism; machine power issue. | Ensure the lever is fully seated. Check if the coffee machine itself is powered on and functioning correctly with other controls. If the issue persists, consult your coffee machine's original manual or a qualified technician. |
Specifications
- Material: Aluminum
- Color Options: Silver, Black (as per purchase)
- Dimensions: Approximately 5.4 cm (2.12 inches) diameter at base, 13.1 cm (5.15 inches) length.

Image 7: Diagram illustrating the approximate dimensions of the RUMDS replacement lever in both black and silver variants.

Image 8: A comparison view of the black and silver RUMDS replacement levers, showcasing the available color options.
Warranty and Support
For specific warranty information, please refer to the product packaging or contact the retailer from whom the RUMDS Replacement Lever was purchased. For technical support or further assistance, please reach out to the manufacturer or seller directly.
Manufacturer: RUMDS