1. Product Overview
The Mikolo PB03 Preacher Curl Bench is a versatile 2-in-1 arm training machine designed for targeted bicep isolation and growth. It functions as both a traditional preacher curl bench for barbells and dumbbells, and a plate-loaded bicep curl machine for fixed-range movements. This equipment is constructed with a robust 14-gauge steel frame, ensuring durability and stability for home gym use. Key features include adjustable seat and preacher pad positions, an extra-thick pad for comfort, and anti-slip components for safety.


2. Setup and Assembly
Before assembly, ensure all components are present and undamaged. Refer to the detailed paper instructions included with your product for a step-by-step guide. An official 3D video guide is also available online to assist with the assembly process.
2.1 Unpacking
- Carefully remove all parts from the packaging.
- Verify all components against the parts list in the manual.
- Place all parts on a clean, flat surface to prevent damage or loss.
2.2 Assembly Steps (General)
- Attach the main frame components using the provided hardware.
- Secure the preacher pad and seat to their respective supports.
- Install the bicep curl bar and bar holder.
- Ensure all bolts and nuts are tightened securely before use.
For visual assistance, please refer to the official product video below:
3. Operation and Adjustments
The Mikolo PB03 offers multiple adjustments to accommodate various body sizes and exercise preferences.
3.1 Adjusting Seat Height
- Locate the seat adjustment knob beneath the seat.
- Pull the knob out and slide the seat support up or down to one of the 6 available height positions.
- Release the knob to lock the seat into place. Ensure it is fully engaged before use.
3.2 Adjusting Rack Height (for Preacher Curls)
- Identify the rack adjustment pin on the front support.
- Pull the pin and adjust the bar holder to one of the 8 height settings.
- Release the pin to secure the rack. The rubberized shelves provide a stable resting place for barbells or dumbbells.
3.3 Using as a Preacher Curl Bench
- Adjust the seat and rack to a comfortable height.
- Position yourself on the seat with your upper arms resting firmly on the preacher pad.
- Use a barbell or dumbbells, curling the weight upwards while keeping your elbows stationary on the pad.

3.4 Using as a Plate-Loaded Bicep Curl Machine
- Load appropriate weight plates onto the lever arm.
- Sit on the bench with your arms positioned to grip the handles of the bicep curl bar.
- Perform bicep curls, allowing the machine to guide your movement for consistent tension.


4. Maintenance
Regular maintenance ensures the longevity and safe operation of your Mikolo PB03 Preacher Curl Bench.
4.1 Cleaning
- Wipe down the preacher pad and seat with a damp cloth after each use to remove sweat and dirt.
- Use a mild, non-abrasive cleaner for deeper cleaning if necessary. Avoid harsh chemicals that may damage the upholstery or frame finish.
4.2 Inspection
- Periodically check all bolts, nuts, and fasteners to ensure they are tight. Retighten as needed.
- Inspect the frame for any signs of damage, cracks, or wear.
- Examine the preacher pad and seat for tears or excessive wear.
- Ensure the adjustment mechanisms operate smoothly and lock securely.
5. Troubleshooting
This section addresses common issues you might encounter with your Mikolo PB03.
5.1 Instability During Use
- Issue: The bench feels wobbly or unstable.
- Solution: Check all assembly bolts and nuts. Ensure they are fully tightened. Verify the bench is on a flat, level surface. The PVC feet are designed to protect floors and provide stability.
5.2 Difficulty Adjusting Height
- Issue: The seat or rack adjustment mechanism is stiff or difficult to move.
- Solution: Ensure the adjustment knob/pin is fully disengaged before attempting to move the component. Clean any debris from the adjustment holes and apply a small amount of silicone-based lubricant if necessary.
5.3 Damaged or Missing Parts
- Issue: A part is damaged or missing upon arrival.
- Solution: Contact Mikolo customer support immediately with your order details. Refer to the Warranty and Support sections for contact information.
6. Product Specifications
| Feature | Detail |
|---|---|
| Brand | Mikolo |
| Model Number | PB03 |
| Item Weight | 70 Pounds |
| Material | Alloy Steel |
| Color | Black |
| Product Dimensions (L x W x H) | 40.4"D x 30.7"W x 25"H |
| Frame Material | Alloy Steel (2''x2'' 14-gauge) |
| Weight Limit | 400 Pounds |
| Lever Arm Capacity | 250 lbs |
| Dumbbell Rack Capacity | 250 lbs |
| Seat Height Positions | 6 (16.7"-25") |
| Rack Height Positions | 8 |


7. Warranty Information
Mikolo offers a comprehensive warranty for your product. In the event of quality issues, affected parts will be replaced within 2 years of purchase. This ensures peace of mind and continued functionality of your equipment.
- Replacement Parts: 2 years from the date of purchase.
- This warranty covers manufacturing defects and quality-related issues.
- For warranty claims, please contact Mikolo customer support with your purchase details.
8. Customer Support
Mikolo is committed to providing excellent customer service. Our expert team is available to assist you with any questions or concerns.
8.1 Contacting Support
- For assistance, you can reach out to Mikolo customer support directly.
- Response time is typically within 24 hours.
- Please have your product model (PB03) and purchase information ready when contacting support.
8.2 Frequently Asked Questions (FAQ)
- Q: Can I correct my address after purchase?
- A: Address corrections or order modifications can be processed within 24 hours of purchase. After this period, the order is with the carrier, and modifications may not be possible.
- Q: Why did I only receive one package when I'm supposed to get three?
- A: Some products are shipped in multiple parcels, and delivery times may vary. Please allow a few more days for the rest of your packages. If needed, reach out to the Mikolo team for full tracking information.
- Q: What should I do if my product is faulty or damaged during shipping?
- A: If your product arrives faulty or damaged, please contact our support team immediately. We will arrange for replacement parts or packages, or facilitate a refund.