1. Introduction
This manual provides essential information for the proper use, maintenance, and care of your ABUS 55/40 Solid Brass Keyed Padlock. Designed for reliable security, this padlock features a solid brass body and a hardened steel shackle, offering excellent resistance against corrosion and forced entry. Please read this manual thoroughly to ensure optimal performance and longevity of your padlock.

Figure 1: ABUS 55/40 Solid Brass Keyed Padlock.
2. Key Features
- Solid Brass Body: Provides inherent corrosion resistance, ideal for various environments.
- Hardened Steel Shackle: Offers enhanced resistance against cutting and prying attempts.
- Anti-Corrosion Inner Components: Ensures smooth operation and durability even in challenging conditions.
- Precision Pin Tumbler Cylinder: Designed for secure locking and to deter picking.
- Self-Locking Mechanism: Allows the padlock to be locked without the key by simply pushing down the shackle.
- Keyed Different: Each padlock comes with its own unique key set (two keys included).

Figure 2: Key features of the ABUS 55/40 padlock, including its hardened steel shackle, solid brass body, and precision pin cylinder.
3. Setup
The ABUS 55/40 padlock is ready for immediate use out of the box. No assembly is required.
- Unlocking: Insert one of the provided keys into the keyway at the bottom of the padlock body. Turn the key clockwise until the shackle springs open.
- Locking (with key): Close the shackle by pushing it down into the padlock body. Turn the key counter-clockwise to secure the shackle. Remove the key.
- Locking (self-locking): For quick locking, simply push the shackle firmly down into the padlock body until it clicks into place. The padlock will be secured without needing to turn the key.
4. Operating Instructions
To operate your ABUS 55/40 padlock:
- Ensure the shackle is fully extended when unlocked.
- Position the padlock around the items or through the hasp you wish to secure.
- Push the shackle down firmly until it clicks, or insert the key and turn to lock.
- Always remove the key after locking to prevent loss or unauthorized access.

Figure 3: ABUS 55/40 padlock in use on a gate.
5. Maintenance
Proper maintenance will extend the life and ensure the smooth operation of your padlock:
- Cleaning: Periodically wipe the padlock body and shackle with a soft, dry cloth to remove dirt and grime. For stubborn dirt, a slightly damp cloth can be used, followed by thorough drying.
- Lubrication: If the key becomes difficult to turn or the shackle sticks, apply a small amount of graphite powder or a specialized lock lubricant into the keyway. Avoid using oil-based lubricants as they can attract dirt and gum up the mechanism over time.
- Storage: When not in use, store the padlock in a dry environment to prevent moisture buildup, especially if exposed to harsh weather conditions.
6. Troubleshooting
If you encounter issues with your ABUS 55/40 padlock, consider the following common solutions:
- Key is difficult to insert or turn:
- Check for any debris or foreign objects in the keyway.
- Apply a small amount of graphite powder or lock lubricant into the keyway and gently work the key in and out.
- Shackle does not open or close smoothly:
- Ensure the key is fully inserted and turned correctly.
- Check if the shackle is bent or obstructed.
- Apply lubricant to the shackle entry points and work the shackle up and down.
- Padlock feels stiff in cold weather:
- Extreme cold can affect metal components. Lubrication with a cold-resistant lock lubricant may help.
If problems persist, please refer to the "Customer Support" section.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | ABUS |
| Model Name | 55/40 B KD |
| Lock Type | Key Lock |
| Material | Alloy Steel, Aluminum, Brass, Plastic |
| Color | Gold |
| Item Weight | 4.7 ounces (132 Grams) |
| Product Dimensions (L x W x H) | 1.5 x 0.5 x 2.4 inches |
| Shackle Diameter | 1/4" (6.5mm) |
| Vertical Clearance | 55/64" (22mm) |
| Horizontal Clearance | 53/64" (21mm) |
| Lock Body Width | 1 1/2" (38mm) |
| Overall Height | 2 23/64" (60mm) |
| Lock Body Depth | 33/64" (13mm) |

Figure 4: Detailed dimensions of the ABUS 55/40 padlock.
8. Warranty Information
If an ABUS product fails to work properly due to a manufacturing defect, return it to ABUS postage prepaid, and we will return it repaired or replaced at our discretion. ABUS products are warranted for specific periods of time from date of purchase. Specific warranty periods appear on the packaging.
9. Customer Support
For further assistance, technical support, or warranty claims, please visit the official ABUS website or contact their customer service department. Refer to the product packaging for specific contact details or visit www.abus.com.





