1. Introduction
Welcome to the instruction manual for your Burg-Wächter Lockblocking Key, model ME/2 SB. This manual provides essential information for the proper installation, operation, and maintenance of your new lockblocking key. Please read these instructions carefully before use to ensure optimal security and product longevity.
2. Product Overview
The Burg-Wächter Lockblocking Key ME/2 SB is designed to enhance the security of furniture equipped with mortice locks. It functions by preventing the insertion of a standard deadlock key, thereby offering an additional layer of protection against unauthorized access. The product includes one lockblocking cylinder and two corresponding keys.
Key Features:
- Enhanced Security: Prevents the insertion of a deadlock key into furniture mortice locks.
- Easy Installation: No tools, drilling, or screwing required; simply insert into the existing keyhole.
- Durable Construction: Made from high-quality, sturdy metal for long-lasting performance.
- Cylinder Diameter: Specifically designed for 6mm mortice lock keyholes.
- Included: One lockblocking cylinder and two unique keys.

Figure 1: The Burg-Wächter lockblocking key and its corresponding cylinder, shown separated. The cylinder is brass-toned, and the key is silver-toned, featuring the "BURG WÄCHTER" brand name.

Figure 2: The Burg-Wächter Lockblocking Key ME/2 SB product packaging, displaying two keys and the lockblocking cylinder. The packaging includes branding and product information.
3. Setup and Installation
The Burg-Wächter Lockblocking Key is designed for straightforward installation without the need for specialized tools or modifications to your furniture. Ensure the mortice lock keyhole is clear of any obstructions before proceeding.
- Identify the Keyhole: Locate the keyhole of the furniture mortice lock you wish to secure.
- Insert the Lockblocking Cylinder: Take the brass-toned lockblocking cylinder. Gently insert the cylinder into the keyhole of the mortice lock. It should slide in smoothly. Do not force it.
- Insert the Key: Once the cylinder is fully seated in the keyhole, insert one of the provided silver-toned keys into the cylinder.
- Engage the Blocking Mechanism: Turn the key to engage the internal mechanism of the lockblocking cylinder. This action will secure the cylinder within the mortice lock, preventing any other key from being inserted or the lock from being operated.
- Remove the Key: Once the cylinder is blocked, remove your key. The mortice lock is now secured.

Figure 3: The Burg-Wächter key partially inserted into the lockblocking cylinder, demonstrating the initial step of engagement.

Figure 4: The Burg-Wächter key fully inserted into the lockblocking cylinder, indicating the cylinder is ready to be secured or unsecured.
4. Operating Instructions
To operate the Burg-Wächter Lockblocking Key:
- To Block the Lock: After inserting the lockblocking cylinder into the mortice lock keyhole, insert one of the provided keys and turn it until the cylinder is securely engaged. Remove the key. The mortice lock is now blocked.
- To Unblock the Lock: Insert one of the provided keys into the blocked lockblocking cylinder. Turn the key in the opposite direction until the cylinder disengages. Remove the key, and then carefully remove the lockblocking cylinder from the mortice lock keyhole. The mortice lock is now accessible for its original key.
Always ensure the lockblocking cylinder is fully inserted and engaged when blocking the lock, and fully disengaged and removed when unblocking it.
5. Maintenance
To ensure the long-term functionality and appearance of your Burg-Wächter Lockblocking Key, follow these simple maintenance guidelines:
- Cleaning: Wipe the lockblocking cylinder and keys with a soft, dry cloth periodically to remove dust and grime. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the metal finish.
- Lubrication: If the key or cylinder action becomes stiff, a small amount of graphite-based lubricant (specifically designed for locks) can be applied to the key and inserted into the cylinder. Avoid oil-based lubricants, which can attract dust and debris.
- Storage: Store the keys in a safe, accessible location. When not in use, the lockblocking cylinder can be stored in a dry environment to prevent corrosion.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lockblocking cylinder does not insert smoothly into the mortice lock keyhole. | Obstruction in the keyhole; incorrect keyhole size. | Ensure the mortice lock keyhole is clear of debris. Verify that your mortice lock keyhole diameter is 6mm. Do not force the cylinder. |
| Key does not turn or feels stiff. | Cylinder not fully inserted; internal mechanism dirty or dry; incorrect key. | Ensure the lockblocking cylinder is fully seated. Apply a small amount of graphite lubricant. Confirm you are using one of the two provided keys. |
| Mortice lock is not blocked after key removal. | Cylinder not fully engaged. | Re-insert the key and turn it fully to ensure the blocking mechanism is engaged before removing the key. |
| One of the provided keys does not work. | Manufacturing defect or damage. | Contact Burg-Wächter customer support or your retailer for assistance. |
7. Specifications
| Brand | Burg-Wächter |
| Model Name | ME 2/SB |
| Part Number | ME/2 SB |
| Cylinder Diameter | 6 mm |
| Material | Metal (Brass-toned cylinder, Silver-toned key) |
| Item Weight | 0.02 Kilograms (approx. 0.704 ounces) |
| Product Dimensions (L x W x H) | Approximately 3.74 x 0.31 x 6.69 inches (packaging dimensions) |
| Included Components | 1 Lockblocking Key Cylinder, 2 Keys |
| Lock Type | Pin Tumbler |
| Special Feature | Unlock keys |
| Finish Type | Powder Coated (for key) |
| Global Trade Identification Number (GTIN) | 04003482043417 |
8. Warranty and Support
For specific warranty details, please refer to the documentation provided with your purchase or contact your retailer. Burg-Wächter products are manufactured to high-quality standards, and support is available for product-related inquiries.
Manufacturer Website: For additional information and support, please visit the official Burg-Wächter website: www.burg-waechter.de
When contacting support, please have your model number (ME/2 SB) and Global Trade Identification Number (GTIN: 04003482043417) ready for efficient assistance.