1. Introduction
The Schellenberg 15650 Duo MAXI Belt Guide is designed to enhance the functionality and longevity of your roller blind system. This innovative product features an integrated brush seal to prevent drafts and a guide roller to minimize wear on your roller blind strap. It is specifically designed for roller blind straps with a width of 23 mm.
This manual provides essential information for the safe and correct installation, operation, and maintenance of your new belt guide. Please read all instructions carefully before proceeding with installation or use.
2. Safety Instructions
- Always wear appropriate personal protective equipment (PPE) such as safety glasses and gloves during installation.
- Ensure the work area is well-lit and free from obstructions.
- Keep children and pets away from the installation area.
- Use only suitable tools for installation.
- Do not modify the product in any way. Unauthorized modifications may compromise safety and void the warranty.
- If you are unsure about any step of the installation process, consult a qualified professional.
3. Package Contents
Please check that all parts are present and undamaged before beginning installation.
- 1x Attachment with brush seal
- 1x Attachment with guide roller

Figure 1: Components of the Schellenberg Duo MAXI Belt Guide, showing the brush seal attachment and the guide roller attachment.
4. Setup and Installation
The Schellenberg Duo MAXI Belt Guide is designed for quick and easy wall mounting without the need to remove the existing roller blind strap. This makes the installation process straightforward and efficient.
4.1 Preparation
- Identify the location where the belt guide will be mounted. This is typically directly above the existing belt winder.
- Ensure the surface is clean and suitable for drilling.
- Gather necessary tools: drill, screwdriver, pencil, measuring tape, and appropriate screws/dowels (not included).
4.2 Mounting Steps
- Positioning: Hold the two parts of the belt guide (brush seal attachment and guide roller attachment) together around the roller blind strap at the desired mounting height. Ensure the strap runs smoothly through the guide.
- Marking Drill Holes: Use a pencil to mark the positions for the drill holes through the designated holes on the belt guide.
- Drilling: Drill holes at the marked positions. Use a drill bit appropriate for your wall material and the chosen screws/dowels.
- Inserting Dowels: Insert the dowels into the drilled holes, if required by your wall type.
- Attaching the Guide: Place the two halves of the belt guide around the roller blind strap. Align the screw holes with the drilled holes/dowels.
- Securing: Fasten the belt guide securely to the wall using screws. Do not overtighten.

Figure 2: Diagram illustrating the installation steps for the Schellenberg Duo MAXI Belt Guide.

Figure 3: The Schellenberg Duo MAXI Belt Guide installed on a wall, showing the roller blind strap passing through.
5. Operation
Once installed, the Schellenberg Duo MAXI Belt Guide operates passively. The integrated guide roller ensures the roller blind strap moves smoothly and with reduced friction, minimizing wear. The brush seal continuously prevents drafts from entering through the belt opening, contributing to improved thermal insulation.
Simply operate your roller blind as usual. The belt guide will automatically perform its function, providing a cleaner and more efficient strap movement.
6. Maintenance
The Schellenberg Duo MAXI Belt Guide requires minimal maintenance.
- Cleaning: Periodically wipe the exterior of the belt guide with a soft, damp cloth to remove dust and dirt. Do not use abrasive cleaners or solvents.
- Inspection: Regularly check the belt guide for any signs of damage or excessive wear. Ensure the guide roller moves freely and the brush seal is intact.
- Strap Condition: Inspect your roller blind strap for fraying or damage. A worn strap can still cause issues even with a new belt guide.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Strap does not move smoothly. | Misalignment during installation; debris in the guide; worn roller blind strap. | Check alignment and re-mount if necessary. Clean the guide. Inspect and replace the roller blind strap if damaged. |
| Drafts are still noticeable. | Brush seal is damaged or not properly seated; gaps around the belt guide. | Inspect the brush seal for damage and ensure it is correctly positioned. Check for gaps between the guide and the wall; seal with appropriate sealant if necessary. |
| Product feels loose on the wall. | Screws are not tightened sufficiently; incorrect dowels used; wall material is not suitable. | Tighten screws. If the problem persists, consider using different dowels or reinforcing the mounting area. |
8. Specifications
- Model Number: 15650
- Material: Plastic
- Product Dimensions (L x W): 6.1 cm x 3.4 cm (approx. 34 x 61 x 15 mm for MAXI)
- Compatible Strap Width: 23 mm (MAXI system)
- Special Features: Integrated brush seal (draft prevention), guide roller (wear reduction)
- Mounting Type: Surface mounting
- Recommended Use: Indoor
- Included Components: 1 attachment with brush seal, 1 attachment with guide roller
- Country of Origin: China
9. Warranty and Support
Schellenberg products are manufactured to high-quality standards. For information regarding warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official Schellenberg website.
If you encounter any issues or have questions that are not addressed in this manual, please contact Schellenberg customer support. Contact details can typically be found on the product packaging or the manufacturer's website.
Online Resources: For additional product information and support, please visit the Schellenberg Store.