HECHT 6642 Gasoline Wood Chipper User Manual

Introduction

This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new Hecht 6642 Gasoline Wood Chipper. Please read this manual thoroughly before operating the machine to ensure proper use and to prevent injury or damage.

The Hecht 6642 is a high-quality garden shredder designed for professional use around the home, yard, and forest. It features a powerful 420 cc engine and robust construction, ensuring durability. Its special weight distribution and rubber-tired chassis make it easily maneuverable despite its 180 kg weight. For longer distances, the shredder is equipped with a towing device. A solid blade drum with two blades efficiently reduces branches, trunks, and bushes up to 10 cm thick. The large filling funnel includes a safety bar for immediate shutdown, and the rotatable discharge chute allows direct loading onto a trailer or cart.

Safety Instructions

Always prioritize safety when operating the wood chipper. Failure to follow these instructions may result in serious injury or property damage.

• Read the entire manual before operating the machine.
• Wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, gloves, and sturdy footwear.
• Ensure the work area is clear of bystanders, children, and pets. Maintain a safe distance from the discharge chute.
• Never place hands or any body part into the feeding chute or discharge chute while the engine is running.
• Do not operate the chipper on uneven ground or slopes where stability may be compromised.
• Turn off the engine and disconnect the spark plug wire before performing any maintenance, clearing jams, or making adjustments.
• Only feed material that is within the specified maximum diameter (100 mm).
• Keep the engine and exhaust system free of debris to prevent fire hazards.
• Refuel in a well-ventilated area with the engine off and cool. Do not smoke while refueling.
• Store the chipper in a secure, dry location, away from flammable materials.

Components Overview

Familiarize yourself with the main components of your Hecht 6642 Wood Chipper.

Figure 1: Overall view of the Hecht 6642 Gasoline Wood Chipper. This image shows the robust construction, including the large feeding hopper at the top, the powerful engine block, the sturdy wheels for mobility, and the adjustable discharge chute on the right side. The towing hitch is visible at the front for easy transport.

• Feeding Hopper: The large opening where material is fed into the chipper. Equipped with a safety bar.
• Engine: A powerful 420 cc 4-stroke gasoline engine that drives the chipping mechanism.
• Chipping Mechanism: Consists of a solid blade drum with two blades that cut and shred the material.
• Discharge Chute: The outlet through which shredded material is expelled. It is rotatable 90 degrees to either side for directing output.
• Chassis and Wheels: Provides stability and mobility, with rubber tires for easy maneuvering.
• Towing Device: Allows the chipper to be attached to a vehicle for transport over longer distances.

Setup

Before first use, the Hecht 6642 Wood Chipper requires some assembly. Follow these steps carefully.

1. Unpacking: Carefully remove all components from the packaging. Check for any damage during transit and ensure all parts listed in the packing list are present.
2. Wheel Assembly: Attach the wheels to the axle using the provided hardware. Ensure they are securely fastened.
3. Handlebar/Towing Hitch Assembly: Assemble and attach the handlebar or towing hitch to the front of the chipper frame.
4. Discharge Chute Assembly: Mount the discharge chute to the main body of the chipper. Ensure it can rotate freely and the quick-release mechanism functions correctly.
5. Feeding Hopper Assembly: Secure the feeding hopper to the top of the chipper. Verify the safety bar mechanism is operational.
6. Fluid Levels: Before starting, fill the engine with the recommended type and amount of engine oil (refer to engine manual for specifics). Fill the fuel tank with fresh gasoline.
7. Final Inspection: Double-check all nuts, bolts, and fasteners to ensure they are tight. Verify all safety guards are in place.

Figure 2: The Hecht 6642 Wood Chipper positioned in a garden setting, demonstrating its readiness for use. This view highlights the large feeding hopper and the discharge chute, which is directing chipped material onto a tarp. The robust wheels and towing hitch are also visible, indicating its mobility.

Figure 3: A side view of the Hecht 6642 Wood Chipper during operation. This image provides a clear perspective of the engine, the main body, and the discharge chute effectively expelling wood chips. The sturdy frame and wheels are prominent, emphasizing the machine's stability and design for practical use.

Operating Instructions

Follow these steps for safe and effective operation of your wood chipper.

Pre-Operation Checks:

• Check engine oil level and add if necessary.
• Ensure the fuel tank is adequately filled with fresh gasoline.
• Inspect the blades for sharpness and damage. Replace or sharpen as needed.
• Verify all guards and covers are securely in place.
• Clear the work area of any obstacles or debris.

Starting the Engine:

1. Ensure the chipper is on a stable, level surface.
2. Set the fuel valve to the "ON" position.
3. Move the choke lever to the "CHOKE" position (for cold starts).
4. Set the throttle lever to the "FAST" position.
5. Pull the starter rope firmly until the engine starts. If equipped with electric start, turn the key.
6. Once the engine starts, gradually move the choke lever to the "RUN" position.
7. Allow the engine to warm up for a few minutes before feeding material.

Feeding Material:

• Feed branches and brush into the feeding hopper one piece at a time.
• Do not force material into the chipper. Allow the machine to pull the material through.
• Feed material with the cut end first.
• Avoid feeding material with excessive dirt, rocks, or metal, as this can damage the blades.
• Direct the discharge chute to where you want the chipped material to go (e.g., a trailer, wheelbarrow, or designated pile).

Shutting Down:

1. Allow the engine to idle for a few minutes to cool down.
2. Move the throttle lever to the "STOP" or "OFF" position.
3. Turn the fuel valve to the "OFF" position.
4. Disconnect the spark plug wire to prevent accidental starting.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your Hecht 6642 Wood Chipper.

• Engine Oil: Check oil level before each use. Change oil after the first 5 hours of operation, then every 25 hours or annually, whichever comes first.
• Air Filter: Clean or replace the air filter regularly, especially when operating in dusty conditions.
• Spark Plug: Inspect the spark plug annually or every 50 hours. Clean or replace if fouled or worn. Ensure the electrode gap is 0.7 – 0.8 mm.
• Blades: Inspect chipping blades for sharpness and damage before each use. Sharpen or replace blades as needed. Always replace both blades at the same time to maintain balance.
• Belts: Check the drive belts for wear and proper tension periodically. Adjust or replace if necessary.
• General Cleaning: After each use, clean the chipper thoroughly, removing any accumulated debris from the feeding hopper, discharge chute, and around the engine.
• Storage: For long-term storage, drain the fuel tank or add a fuel stabilizer. Clean the machine, lubricate moving parts, and store in a dry, protected area.

Troubleshooting

Refer to this table for common issues and their potential solutions.

If you encounter issues not listed here or require further assistance, please contact Hecht customer support or a qualified service technician.

Specifications

Key technical specifications for the Hecht 6642 Gasoline Wood Chipper.

Warranty and Support

Information regarding product warranty and customer support is typically provided with your purchase documentation or available on the manufacturer's official website. Please refer to the warranty card included with your product or visit the Hecht website for detailed warranty terms, conditions, and contact information for technical support and service centers.

For any questions or assistance, always provide your product model number (6642) and serial number (if applicable) to expedite service.