1. Introduction
The Unite U-226 is a medium to high-level semi-automatic tilt-back tower tyre changer designed for efficient and safe tire fitting and removal. Equipped with an advanced help arm system, it simplifies the process of handling various tire types, including low-profile, run-flat, and those with hard side walls. This machine is engineered to prevent rim scratching and reduce manual effort, making tire changing a breeze for professional workshops.
Figure 1: Front view of the U-226 Unite Tyre Changer.
2. Safety Instructions
- Read and understand this manual completely before operating the machine.
- Ensure the machine is installed on a level, stable surface.
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
- Do not operate the machine if any parts are damaged or missing.
- Keep hands and clothing clear of moving parts during operation.
- Ensure proper air pressure and electrical connections are maintained.
- Only trained personnel should operate and maintain this equipment.
- Disconnect power and air supply before performing any maintenance or adjustments.
3. Key Components and Features
The U-226 Tyre Changer is equipped with several features designed for ease of use and efficiency:
- Semi-automatic Tilt Back Tower: Allows for easy positioning and handling of wheels.
- 006 Help Arm System: A multi-functional helper arm for tyre lifting, central locking, and bead pressing.
- Pneumatic Roller Disc: Assists in lifting heavy tyres, reducing operator fatigue.
- Quick Clamping with Central Positioning: Ensures secure and accurate wheel mounting.
- Nylon Bead Roller: Designed to prevent marks on the rim during tire changing.
- 360° Moving Bead Pressing Block: A labor-saving feature for easier unloading of tires.
- Rugged & Durable One-Piece Casting Jaws: Provides strong and reliable grip on the wheel.
Figure 2: Detailed features of the 006 Help Arm System.
Figure 3: The U-226 Tyre Changer demonstrating the help arm in use.
4. Specifications
| Attribute | Value |
|---|---|
| Model Number | U-226 |
| Brand Name | Unite |
| Type | Hand Tool Parts (Tyre Changer) |
| Origin | Mainland China |
| Place of Origin | Shanghai, China |
| Motor Power | 0.75kw |
| Operating Pressure | 8-10 bar |
| Power Supply | 110V/220V/380V (1/3ph) |
| External Clamping | 10-21 inches |
| Internal Clamping | 12-24 inches |
| Max. Wheel Diameter | ≤1000mm (39 inches) |
| Max. Wheel Width | ≤355mm (14 inches) |
| Noise Level | ≤75dB |
| N/G Weight | 210/234 kg (462/525 lbs) |
| Package Dimension | 960*760*980mm (3.1*2.5*3.2 ft) |
| Warranty | 1 Year |
Figure 4: Detailed specifications and features of the U-226.
5. Setup and Installation
- Unpacking: Carefully unpack all components and check against the packing list. Report any damage or missing parts immediately.
- Placement: Position the tyre changer on a flat, solid concrete floor capable of supporting its weight and the weight of the tires being serviced. Ensure adequate space around the machine for safe operation and maintenance.
- Anchoring: Secure the machine to the floor using appropriate anchor bolts (not included) to prevent movement during operation.
- Electrical Connection: Connect the machine to a suitable power supply (110V/220V/380V, 1/3ph) as specified on the machine's data plate. Ensure the power circuit is protected by a circuit breaker and proper grounding.
- Air Supply Connection: Connect the machine to a clean, dry air supply with an operating pressure of 8-10 bar (116-145 psi). Use a suitable air hose and quick-connect fittings.
- Initial Checks: Before first use, verify all connections are secure, and there are no visible leaks in the air system.
6. Operating Instructions
This section outlines the general procedure for changing a tire using the U-226 Tyre Changer. Always refer to the detailed instructions in the full manual for specific steps and safety precautions.
- Preparation:
- Ensure the tire is deflated.
- Lubricate the tire beads and rim edges with approved tire lubricant.
- Mounting the Wheel:
- Use the pneumatic roller disc of the help arm system to lift heavy tires onto the turntable.
- Position the wheel on the turntable and secure it using the quick clamping mechanism with central positioning. Ensure the wheel is centered and firmly clamped.
- Bead Breaking:
- Position the bead breaker shovel against the tire sidewall, close to the rim edge.
- Activate the bead breaker to gently push the tire bead away from the rim. Repeat for both sides of the tire.
- Tire Demounting:
- Adjust the mounting head to the correct position, ensuring it clears the rim edge.
- Use the help arm's nylon bead roller to guide the upper bead over the mounting head.
- Rotate the turntable to fully demount the upper bead.
- Reposition the mounting head and use the 360° moving bead pressing block to assist in demounting the lower bead.
- Rotate the turntable to fully demount the lower bead.
- Tire Mounting:
- Lubricate the new tire beads.
- Position the lower bead of the new tire onto the rim, using the help arm's bead pressing block if needed.
- Guide the upper bead over the mounting head with the nylon bead roller, rotating the turntable until the tire is fully mounted.
- Inflation:
- Inflate the tire to the manufacturer's recommended pressure.
- Always use a pressure gauge and stand clear during inflation.
Video 1: Demonstration of the tire changing process using a similar machine.
7. Maintenance
Regular maintenance ensures the longevity and safe operation of your U-226 Tyre Changer.
- Daily:
- Clean the machine, especially the turntable and clamping jaws, to remove tire debris and lubricant residue.
- Check air and hydraulic lines for leaks or damage.
- Weekly:
- Lubricate all moving parts, including the help arm pivots, clamping jaws, and bead breaker cylinder, with appropriate grease.
- Inspect the mounting head and nylon bead roller for wear and replace if necessary.
- Monthly/Quarterly:
- Check and tighten all fasteners.
- Inspect electrical connections for corrosion or damage.
- Verify the accuracy of the pressure gauge.
- Check the air filter/lubricator unit and replenish oil if needed.
8. Troubleshooting
This section provides solutions to common issues. For complex problems, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Machine does not power on | No power supply; tripped circuit breaker; faulty wiring. | Check power connection; reset circuit breaker; inspect wiring (by qualified technician). |
| Air leaks | Loose fittings; damaged hoses; worn seals. | Tighten fittings; replace damaged hoses; replace worn seals. |
| Difficulty clamping wheel | Jaws are dirty or worn; incorrect clamping size. | Clean or replace jaws; adjust clamping mechanism for correct wheel size. |
| Tire bead difficult to break | Insufficient lubrication; low air pressure; tire stuck to rim. | Apply more lubricant; check air supply pressure; use help arm for stubborn beads. |
9. User Tips
- Rim Protection: Always ensure the nylon bead roller is properly positioned and in good condition to prevent scratching expensive rims.
- Heavy Tires: Utilize the pneumatic roller disc and the assist arm fully when handling large or heavy tires to minimize physical strain and improve efficiency.
- Lubrication is Key: Generously lubricate both tire beads and rim edges before demounting and mounting. This significantly eases the process and reduces stress on the tire and machine.
- Central Positioning: Take advantage of the quick clamping with central positioning function for precise and secure wheel mounting, which is crucial for balanced tire fitting.
10. Warranty
The U-226 Unite Tyre Changer comes with a 1-year warranty from the date of purchase, covering manufacturing defects and malfunctions under normal use. This warranty does not cover damage due to misuse, neglect, unauthorized modifications, or normal wear and tear. Please retain your proof of purchase for warranty claims.
11. Customer Support
For technical assistance, spare parts, or warranty inquiries, please contact your local distributor or the manufacturer directly.
Manufacturer/Seller: Shop1102924731 Store (Shanghai Balance)
Contact: +86 19119251865 (WhatsApp)
Store Homepage: Shop1102924731 Store
