Product Overview
The ZENG 10-Button Combination Padlock is a robust security device designed for various applications, including gym lockers, toolboxes, fences, and more. It features a pre-set, unchangeable 5-digit combination code and a hardened steel shackle for enhanced security and durability.
- Pre-Set Security Code: Features a 10-number push-button interface with a factory-assigned 5-digit combination that cannot be changed, preventing tampering.
- Anti-Theft Design: Equipped with a hardened steel shackle that resists cutting and sawing attempts. It is also weatherproof for reliable outdoor durability.
- Simple Operation: Unlocking involves pressing the 5 assigned buttons and then toggling a switch. To lock, simply reset the buttons.
- Versatile Use: Ideal for securing items in gyms, schools, garages, on fences, cabinets, sheds, and pool enclosures.
- Tested Reliability: Each padlock undergoes individual quality checks to ensure smooth and consistent performance.

Front view of the ZENG 10-Button Combination Padlock, showing the numbered buttons and the shackle.
Setup
The ZENG 10-Button Combination Padlock comes with a pre-set, unchangeable 5-digit combination code. This code is unique to each lock and is typically provided on a small tag attached to the shackle or printed on the product packaging.
Initial Unlocking Procedure:
- Identify the Code: Locate the 5-digit combination code on the tag or packaging. For example, the code might be '12567'.
- Reset Buttons: Ensure all 10 push buttons (0-9) are in their raised, 'reset' position. If any are pressed in, gently push them back out.
- Enter Combination: Press down the 5 buttons corresponding to your pre-set combination code. For example, if your code is '12567', press buttons 1, 2, 5, 6, and 7. The order of pressing these buttons does not matter.
- Toggle Switch: With the correct buttons pressed, locate the small slide switch on the side or bottom of the padlock. Slide this switch to the right.
- Open Shackle: The shackle will spring open, indicating the padlock is unlocked.

The ZENG 10-Button Combination Padlock alongside its instruction card, which details the unlock and lock procedures and shows the pre-set 5-digit code.
Operating Instructions
Unlocking the Padlock:
- Ensure all buttons are in the raised position.
- Press the 5 buttons that constitute your pre-set combination code.
- Slide the release switch (located on the bottom or side) to the right.
- The shackle will release, allowing you to open the padlock.
Locking the Padlock:
- Close the shackle by pushing it firmly back into the padlock body.
- Press down on the shackle to ensure it is fully seated.
- Push all the previously pressed combination buttons back to their raised position. This action secures the lock.

Detailed step-by-step diagram illustrating the method of unlocking and locking the ZENG 10-Button Combination Padlock.

The padlock in use, securing a wooden door latch.

Example of the padlock used for securing a motorcycle wheel with a chain.
Maintenance
The ZENG 10-Button Combination Padlock is designed for durability and is weatherproof, making it suitable for both indoor and outdoor use. To ensure its longevity and smooth operation, consider the following maintenance tips:
- Regular Cleaning: Periodically wipe down the padlock with a clean, damp cloth to remove dirt, dust, and grime. For outdoor use, especially in harsh conditions, more frequent cleaning may be beneficial.
- Lubrication (Optional): If the buttons or shackle mechanism feel stiff over time, a small amount of silicone-based lubricant can be applied to the moving parts. Avoid oil-based lubricants as they can attract dirt.
- Inspect for Damage: Regularly check the shackle and body for any signs of wear, corrosion, or damage. Address any issues promptly to maintain security.
Troubleshooting
- Issue: Padlock does not open after entering the combination.
Possible Causes & Solutions:
- Incorrect Buttons Pressed: Double-check that you are pressing the exact 5 buttons of your pre-set combination. Refer to the tag or packaging for the correct code.
- Buttons Not Fully Reset: Ensure all buttons are in their fully raised position before attempting to enter the combination. Gently pull out any buttons that are stuck in.
- Release Switch Not Toggled: After pressing the combination buttons, ensure you slide the release switch (on the side/bottom) fully to the right.
- Mechanism Stiffness: Dirt or debris might be hindering the internal mechanism. Try gently wiggling the shackle while toggling the switch. A small amount of lubricant (as per maintenance) might help.
- Issue: The combination code cannot be changed.
Explanation: This is not an issue but a design feature of the ZENG 10-Button Combination Padlock. The padlock is designed with a factory-assigned, unchangeable 5-digit combination code. This feature is intended to prevent accidental code changes and enhance security by ensuring the code remains fixed from the point of manufacture. Please refer to the original tag or packaging for your specific lock's combination.
Specifications
| Feature | Detail |
|---|---|
| Brand | zeng |
| Model Name | ze-mms10 |
| Lock Type | Combination Padlock |
| Special Feature | Weather Resistant |
| Material | Metal |
| Color | Black |
| Item Dimensions (L x W x H) | 2.76 x 1.54 x 0.43 inches (70 x 39 x 11 mm) |
| Item Weight | 88 Grams (3.1 ounces) |
| Control Method | Push Button |
| Included Components | Lock |
| UPC | 703931377363, 788125606610 |
| ASIN | B07F9M2CX1 |
| Date First Available | April 27, 2018 |

Diagram illustrating the dimensions of the padlock.
Warranty Information
No specific warranty information is provided in the product details. For any warranty-related inquiries, please contact the manufacturer directly.
Support
For further assistance or product support, please refer to the following resources:
- Brand: zeng
- Manufacturer: zeng
- Online Store: Visit the official zeng Store on Amazon for more products and information.
Note on Videos: No official product videos from the seller were available in the provided data for embedding in this manual.