MechMaxx 6-Inch 420cc 15hp Wood Chipper Shredder Mulcher User Manual

1. Safety Information

Read and understand all safety warnings and instructions before operating this wood chipper. Failure to follow these instructions may result in serious injury or death.

• Always wear appropriate personal protective equipment (PPE), including eye protection, hearing protection, gloves, and sturdy footwear.
• Keep hands, feet, and clothing away from all moving parts.
• Ensure the emergency stop button and bar are easily accessible and functional. The machine is equipped with an emergency stop switch that can quickly stop the machine in case of emergency.
• Never operate the machine with guards or covers removed. The feeding and discharge chutes have limit switches that shut down the engine if opened during operation, ensuring safety during maintenance.
• Do not allow children or untrained individuals to operate the chipper.
• Operate on a stable, level surface.
• Keep the work area clear of bystanders and pets.
• Only feed appropriate materials into the chipper. This machine is designed to handle wood or branches up to 6 inches in diameter.
• Tail lights are synchronized with the vehicle's brake and turn signals, ensuring safe driving when towed.

2. Product Overview

The MechMaxx B150 Wood Chipper Shredder Mulcher is a powerful and efficient tool designed for processing wood and branches. Key features include:

• Powerful Engine: Equipped with a DUCAR 420cc 15hp, 4-stroke, single-cylinder, air-cooled, OHV gasoline engine.
• Electric Start: Features an upgraded electric start system with a 12V20Ah lead-acid battery for simple and fast startup.
• High Chipping Capacity: Easily handles wood or branches up to 6 inches in diameter. The core cutting component is a roller with a 14-inch diameter and 12-inch length, providing a 20:1 reduction ratio.
• Convenient Mobility: Includes a trailer bar for transportation, 19-inch rear wheels, and foldable 13-inch front wheels for stability and easy movement. Front wheels can be locked for straight-line movement.
• Safety Features: Emergency stop switch and bar, and safety interlocks on feeding and discharge chutes. Integrated tail lights for safe towing.
• Efficient Blades: Double-edge A8 material blades offer better corrosion resistance, high strength, and wear resistance.
• Durable Belts: Kevlar material belts provide high strength and good toughness, reducing maintenance frequency.
• 360° Rotary Discharge Chute: Allows for accurate debris discharge.
• Manual Tube: Conveniently holds documents or tools.

Figure 2.1: Overall view of the MechMaxx B150 Wood Chipper.

Figure 2.2: Labeled components of the MechMaxx B150 Wood Chipper.

Figure 2.3: Key features and capabilities of the B150 model.

3. Setup and Assembly

The MechMaxx B150 Wood Chipper requires assembly before first use. Follow these steps carefully:

1. Unpacking: Carefully remove all parts from the shipping crate and lay them out for inspection. Ensure all components listed in the packing list are present and undamaged.
2. Engine Mounting: Position the main cutter base on a stable surface. Carefully mount the engine onto the base, securing it with the provided bolts.
3. Wheel Axle Attachment: Attach the main wheel axle to the cutter base using the designated bolts and nuts.
4. Wheel Installation: Install the large rear wheels onto the main wheel axle. Secure them firmly.
5. Tow Bar Module Assembly: Attach the tow bar mount to the front of the base frame. This module includes the smaller, foldable front wheels.
6. Tow Bar Attachment: Attach the main tow bar to the tow bar mounts.
7. Lower Expulsion Chute: Attach the lower expulsion chute to the cutter base. Ensure the two lock catches are securely fastened.
8. Upper Expulsion Chute: Attach the upper expulsion chute to the lower expulsion chute.
9. Battery Box and Wiring: Attach the battery box to the wheel axle. Install the positive and negative wires at the corresponding positions on the battery.
10. Feeding Chute Attachment: Attach the feeding chute to the cutter base. Secure it with the two lock catches.
11. Emergency Stop Circuit Connection: Connect all components of the emergency stop circuit. Ensure all connections are secure.
12. Tail Light Installation: Lead the tail light wire out from the bottom of the cutter and install the tail light on the rear wheel axle. Connect the tail light wire to the main wiring harness.

4. Operating Instructions

Before starting the chipper, ensure all safety checks are performed and the machine is on a stable, level surface. Always wear appropriate PPE.

1. Fuel and Oil: Fill the fuel tank with unleaded gasoline and check the engine oil level. Refer to the engine manual for specific requirements.
2. Starting the Engine:
   • Ensure the emergency stop button is disengaged (pulled out).
   • Turn the fuel valve to the ON position.
   • Set the choke lever to the CHOKE position (if engine is cold).
   • Turn the engine switch to the ON position.
   • Use the electric start key to start the engine. If electric start fails, use the recoil start.
   • Once the engine starts, gradually move the choke lever to the RUN position.
3. Feeding Material:
   • Allow the engine to warm up for a few minutes.
   • Carefully feed branches and wood into the feeding chute, ensuring they are within the 6-inch diameter limit.
   • Do not force material into the chipper. Allow the machine to pull the material through.
   • Avoid feeding material with excessive dirt, rocks, or metal objects, as this can damage the blades.
4. Discharging Material: The 360° rotary discharge chute allows you to direct chipped material as needed. Adjust the deflector for accurate discharge.
5. Stopping the Engine:
   • To stop the engine in an emergency, press the emergency stop button or activate the emergency stop bar.
   • For normal shutdown, turn the engine switch to the OFF position and turn the fuel valve to the OFF position.
   • Allow the engine to cool down before performing any maintenance or storage.

5. Maintenance

Regular maintenance is crucial for the longevity and safe operation of your MechMaxx wood chipper. Always ensure the engine is off and cooled before performing any maintenance.

• General Cleaning: Keep the machine clean from debris, especially around the engine and cutting mechanism.
• Blade Inspection and Sharpening: Regularly inspect the double-edge A8 blades for sharpness and damage. Sharpen or replace as needed. The side opening hinge design allows for convenient access to clean residual wood chips or replace blades.
• Belt Adjustment: The Kevlar material belts are durable, but proper tension is essential.
1. Loosen the four screws that hold the engine in place.
2. Loosen the two screws that hold the mobile engine in place.
3. Adjust the belt by adjusting the two screws that hold the mobile engine in place until proper tension is achieved.
4. Tighten the loosened screws to complete the adjustment.

Video 5.1: Instructions on how to tighten the MechMaxx Wood Chipper belt.

• Clutch Replacement (if needed):
  1. Remove the belt guard.
  2. Remove the discharge chute.
  3. Use a wrench to rotate the bearing and make the pulley turn.
  4. Use a thin rod-like object to separate the belt from the pulley.
  5. Remove the screws securing the clutch.
  6. Replace with a new clutch.
  7. Insert the key and secure the clutch with screws.
  8. Install the belt as shown in the video.
  9. Reinstall the bearing cover.
  10. Reinstall the belt guard.
  11. Reinstall the discharge chute to complete the maintenance.

  Video 5.2: Instructions on how to change the belt and clutch of the MechMaxx Wood Chipper.
• Lubrication: Refer to the engine manual for lubrication points and schedules.
• Storage: When storing the chipper for extended periods, ensure the fuel tank is empty or stabilized, and the engine is properly prepared for storage according to its manual.

6. Troubleshooting

This section provides solutions to common issues you might encounter with your wood chipper. For problems not listed here, contact customer support.

7. Specifications

Figure 7.1: Dimensional specifications of the B150 Wood Chipper.

8. Warranty and Support

For warranty information, technical support, or replacement parts, please contact MechMaxx customer service. Keep your purchase receipt and product model number (B150) readily available when contacting support.

You can visit the official MechMaxx store for more information: MechMaxx Store