1. Introduction
This manual provides essential instructions for the safe and efficient operation, installation, and maintenance of your Kunchy KC-558-958 Tire Changer and Wheel Balancer Combo. Please read this manual thoroughly before operating the equipment to ensure proper usage and to prevent damage or injury.
2. Safety Information
Always prioritize safety when operating machinery. Failure to follow safety guidelines can result in serious injury or equipment damage.
- Read and understand all instructions before use.
- Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and sturdy footwear.
- Ensure the equipment is installed on a level, stable surface.
- Keep the work area clean and well-lit.
- Do not operate the machine if any parts are damaged or missing.
- Disconnect power before performing any maintenance or adjustments.
- Keep hands and clothing clear of moving parts.
- Only trained personnel should operate this equipment.
- Ensure proper ventilation when working with tires and lubricants.
3. Package Contents
Verify that all components are present upon unpacking:
- Kunchy KC-558 Tire Changer Machine
- Kunchy KC-958 Wheel Balancer Machine
- Auxiliary Assist Arm (for Tire Changer)
- Bead Blast System (integrated)
- Standard accessories for tire changing and wheel balancing (e.g., tire levers, rim protectors, calibration weights, measuring tools).

4. Setup and Installation
Proper setup is crucial for safe and effective operation. Refer to the detailed assembly instructions provided in the separate assembly guide for specific steps.
4.1 Site Preparation
- Ensure the installation area is level, clean, and has sufficient space for operation and maintenance.
- Verify that the power supply meets the specified requirements (110 V, 60 Hz, 1 Ph).
- Ensure access to a compressed air supply capable of providing 116-145 PSI (8-10 bar).
4.2 Assembly
- Unpack all components carefully.
- Assemble the tire changer and wheel balancer according to the provided diagrams and instructions.
- Connect the air supply to the tire changer.
- Connect both machines to the appropriate electrical outlets.
4.3 Initial Checks
- Inspect all connections for security.
- Check for any visible damage.
- Ensure all safety guards are in place.
5. Operating Instructions
5.1 Tire Changer Operation (Model KC-558)
The Kunchy KC-558 Tire Changer is designed for efficient tire removal and installation. It features automatic operation and pedal controls.

- Position the Wheel: Place the wheel onto the turntable.
- Clamp the Rim: Use the foot pedals to activate the clamping jaws. Ensure the rim is securely clamped (external clamping: 12"-20", internal clamping: 12"-24").
- Break the Bead: Position the bead breaker shovel against the tire sidewall and use the foot pedal to activate the bead breaker. Repeat for both sides of the tire.
- Lubricate: Apply tire lubricant to the tire beads and rim edges.
- Mount/Demount Head Positioning: Swing the mount/demount head into position, ensuring it clears the rim. Lock it in place.
- Demounting Tire:
- Insert the tire lever between the tire bead and the mount head.
- Use the foot pedal to rotate the turntable, allowing the tire bead to lift over the mount head.
- Repeat for the second bead.
- Mounting Tire:
- Place the bottom bead onto the rim, under the mount head.
- Use the foot pedal to rotate the turntable, guiding the bead onto the rim.
- Repeat for the top bead, potentially using the assist arm for low-profile or stiff tires.
- Inflate Tire: Inflate the tire to the manufacturer's recommended pressure. The integrated bead blast system can assist with seating stubborn beads.
- Remove Wheel: Release the clamping jaws using the foot pedal and remove the wheel.


5.2 Wheel Balancer Operation (Model KC-958)
The Kunchy KC-958 Wheel Balancer ensures accurate wheel balancing for smooth vehicle operation.

- Mount the Wheel: Securely mount the wheel onto the 36mm rotating shaft of the balancer. Use appropriate cones and locking mechanisms.
- Input Wheel Data: Use the control panel to input the wheel's rim diameter (10"-24"), rim width (1.5"-20"), and distance from the machine. The friendly display guides this process.
- Start Balancing Cycle: Close the wheel guard (if applicable) and press the START button. The machine will spin the wheel and measure imbalances.
- Read Results: The display will show the required weight and its location on the inner and outer sides of the rim.
- Apply Weights: Attach the appropriate balance weights to the indicated positions on the rim. The self-calibration feature can assist with precise placement.
- Re-check Balance: Spin the wheel again to confirm proper balance. Repeat steps 4-5 if necessary until the display shows zero or acceptable imbalance.
- Remove Wheel: Once balanced, remove the wheel from the shaft.

6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your equipment.
- Daily: Clean the machine surfaces, especially the turntable and shaft, to remove tire debris and lubricant residue.
- Weekly: Check air lines and connections for leaks. Inspect all moving parts for wear or damage.
- Monthly: Lubricate pivot points and moving components as recommended in the detailed maintenance schedule (refer to separate service manual).
- Oil-Water Separator: Regularly drain accumulated water from the oil-water separator on the tire changer to maintain air quality.
- Calibration: Periodically calibrate the wheel balancer according to the instructions in the separate calibration guide to ensure accuracy.
- Power Disconnection: Always disconnect power before performing any cleaning or maintenance.
7. Troubleshooting
This section addresses common issues you might encounter. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Tire Changer not clamping/unclamping | Low air pressure, air leak, pedal malfunction. | Check air supply and pressure. Inspect air lines. Check pedal connections. |
| Turntable not rotating | Power issue, motor fault, pedal malfunction. | Verify power connection. Check emergency stop button. Inspect foot pedal. |
| Wheel Balancer shows inaccurate readings | Incorrect wheel data input, machine out of calibration, dirty shaft. | Re-enter wheel data carefully. Perform calibration procedure. Clean the shaft and cones. |
| Excessive vibration during balancing | Wheel not mounted securely, damaged wheel/tire, machine not level. | Ensure wheel is tightly secured. Inspect wheel/tire for damage. Verify machine is on a level surface. |
8. Specifications
8.1 Kunchy KC-558 Tire Changer Specifications
| Feature | Specification |
|---|---|
| Power Supply Voltage | 110 V, 60 Hz, 1 Ph |
| Motor | 2.0 HP |
| Working Pressure | 116 PSI - 145 PSI (8 bar - 10 bar) |
| External Rim Clamping | 12" - 20" (305 mm - 508 mm) |
| Internal Rim Clamping | 12" - 24" (305 mm - 609 mm) |
| Max. Wheel Width | 12.5" (317.5 mm) |
| Max. Wheel Diameter | 41" (1040 mm) |
| Turntable Rotating Torque | 885 ft/lbs |

8.2 Kunchy KC-958 Wheel Balancer Specifications
| Feature | Specification |
|---|---|
| Power Supply Voltage | 110 V, 60 Hz, 1 Ph |
| Motor | 0.34 HP (0.25 kW) |
| Rim Diameter Capacity | 10" - 24" (254 mm - 610 mm) |
| Rim Width | 1.5" - 20" (38 mm - 508 mm) |
| Max. Wheel Diameter | 39 3/8" (1000 mm) |
| Max. Wheel Weight | 154.32 lbs (70 kg) |
| Shaft Size | 36 mm |
| Max. Shaft Weight | 176.37 lbs (80 kg) |
| Balancing Speed | 180 RPM |

9. Warranty and Support
This Kunchy Tire Changer and Wheel Balancer Combo comes with a 1-Year Warranty from the date of purchase, covering manufacturing defects. For warranty claims, technical support, or replacement parts, please contact your authorized Kunchy dealer or customer service.
Please retain your proof of purchase for warranty validation.





