1. Product Overview
The Zarker XB35 is an 8-digit push button combination padlock designed for various security needs. It features a durable zinc alloy body and a chromium-plated hardened steel shackle, ensuring reliability for securing items such as school lockers, fences, cabinets, toolboxes, and gym lockers. This padlock utilizes a fixed 4-digit combination that cannot be changed by the user.

Image: The Zarker XB35 padlock with its shackle open, displaying the 8 push buttons for combination input.
Key Features:
- 8-Digit Push Button Combination: Each lock comes with a unique, randomly set 4-digit password.
- Fixed Combination: The password is pre-set at the factory and cannot be modified or reset by the user. The combination is provided on the back of the product.
- Durable Construction: Made from zinc alloy and plated steel for enhanced security and longevity.
- Ease of Use: Simple operation suitable for all ages.

Image: A diagram illustrating the main components of the Zarker XB35 padlock, including the chrome-plated shackle, push buttons, and zinc alloy body.
2. Setup
The Zarker XB35 padlock does not require any initial setup for the combination, as it comes with a factory-set, unchangeable password. Your unique 4-digit combination is located on a sticker on the back of the padlock. Please locate and remember this combination before first use.

Image: A visual guide demonstrating the steps to unlock and lock the Zarker XB35 padlock, highlighting the location of the pre-set password.
3. Operating Instructions
3.1 Unlocking the Padlock
- Locate Your Combination: Find the 4-digit password printed on the sticker on the back of your padlock.
- Press the Buttons: Press down the 4 specific buttons that correspond to your combination. The order in which you press the buttons does not matter, only that the correct buttons are depressed.
- Lift the Shackle: Once the correct buttons are pressed, the shackle will release. Lift the shackle to open the padlock.
3.2 Locking the Padlock
- Close the Shackle: Push the shackle down firmly into the padlock body until it clicks into place.
- Reset the Buttons: Press all 4 of the combination buttons back to their original, unpressed state. This secures the lock.
Important Note: The combination for this padlock is fixed and cannot be changed or reset. Always refer to the combination provided on the back of the lock.

Image: A user's hands engaging the Zarker XB35 padlock on a locker, illustrating the practical application of the lock.
4. Maintenance
To ensure the longevity and smooth operation of your Zarker XB35 padlock, follow these simple maintenance guidelines:
- Cleaning: Wipe the padlock regularly with a soft, dry cloth to remove dust and grime. For stubborn dirt, a slightly damp cloth can be used, followed by immediate drying.
- Avoid Harsh Chemicals: Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and internal mechanisms of the lock.
- Lubrication (Optional): If the shackle or buttons become stiff over time, a small amount of graphite powder or a silicone-based lubricant can be applied to the moving parts. Avoid oil-based lubricants as they can attract dirt.
- Storage: When not in use, store the padlock in a dry environment to prevent corrosion.
5. Troubleshooting
If you encounter issues with your Zarker XB35 padlock, consider the following:
- Padlock Will Not Open:
- Ensure you are pressing the correct 4-digit combination buttons as indicated on the back of the lock.
- Verify that all 4 combination buttons are fully depressed.
- Check if any buttons are stuck or jammed. Gently try to free them.
- Padlock Will Not Lock:
- Ensure the shackle is fully inserted into the padlock body. It should click into place.
- Verify that all 4 combination buttons are reset to their original, unpressed position.
- Buttons Feel Stiff: Refer to the lubrication advice in the Maintenance section.
Remember, the combination is fixed and cannot be changed. If the padlock is severely damaged or the combination sticker is lost, the lock may need to be replaced.
6. Specifications
| Brand | Zarker |
| Model Name | XB35 |
| Lock Type | Push Button Combination Lock |
| Material | Alloy Steel, Zinc |
| Item Dimensions (L x W x H) | 1.38 x 2.68 x 0.43 inches |
| Item Weight | 2.39 ounces (0.07 Kilograms) |
| Special Feature | Fixed Push Button Combination |

Image: A detailed diagram illustrating the dimensions of the Zarker XB35 padlock, including shackle height, body width, and total height.
7. Warranty and Support
7.1 Warranty Information
Specific warranty details for the Zarker XB35 padlock are not provided in this manual. For information regarding product warranty, please refer to the product packaging or contact the seller directly.
7.2 Customer Support
If you have further questions or require assistance with your Zarker XB35 padlock, please visit the official Zarker Store on Amazon or contact the seller through your purchase platform.