1. Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your MechMaxx DCH7 Wood Chipper. Please read this manual thoroughly before operating the machine to ensure proper use and to prevent injury or damage.
The MechMaxx DCH7 is a robust wood chipper designed for processing wood and branches up to 7 inches in diameter. It is powered by a reliable Honda GX690 22HP 688cc Twin Cylinder Gasoline Engine, featuring a dual variable speed hydraulic infeed system for efficient material processing.

Image 1.1: The MechMaxx DCH7 Wood Chipper, showcasing sa conception globale et ses composants.
2. Consignes de sécurité
AVERTISSEMENT : Le non-respect de ces consignes de sécurité peut entraîner des blessures graves, voire mortelles.
- Always read and understand the entire instruction manual before operating the wood chipper.
- Portez l'équipement de protection individuelle (EPI) approprié, notamment des lunettes de sécurité, une protection auditive, des gants et des chaussures robustes.
- Keep all bystanders, children, and pets at a safe distance (at least 50 feet) from the operating area.
- Ensure the work area is clear of debris, obstacles, and other hazards.
- Never operate the chipper under the influence of alcohol, drugs, or medication that may impair judgment.
- Before starting, inspect the machine for loose parts, damage, or leaks. Do not operate if any issues are found.
- The emergency stop bar is located on the feeding drum. In case of emergency or equipment malfunction, push this bar to quickly stop the machine.
- Ensure tail lights are functional when transporting the unit on public roads.
- Manipulez le carburant avec une extrême précaution. Faites le plein dans un endroit bien ventilé, moteur éteint et froid.
3. Configuration et assemblage
The MechMaxx DCH7 Wood Chipper requires some assembly and preparation before its first use. Follow these steps carefully.
3.1 Déballage et inspection
Retirez soigneusement tous les composants de leur emballage. Vérifiez qu'ils n'ont pas été endommagés pendant le transport. Signalez immédiatement tout dommage à votre revendeur.
3.2 Wheel and Trailer Bar Installation
Attach the two 5.3-12 tubeless rear wheels and the front wheel as per the assembly diagrams provided in the separate assembly guide. Secure the trailer bar for transport or positioning.

Image 3.1 : Côté view of the chipper showing the trailer hitch and wheel assembly.
3.3 Préparation du moteur
- Ajouter de l'huile moteur : Fill the Honda GX690 engine with the recommended type and amount of engine oil. Refer to the Honda engine manual for specific details.
- Ajouter du carburant : Remplissez le réservoir d'essence sans plomb fraîche. Ne le remplissez pas trop.
- Connexion de la batterie : Connect the 12V36Ah lead-acid battery for electric starting. Ensure correct polarity.

Image 3.2 : Gros plan view of the Honda GX690 engine, highlighting its placement on the chipper.
3.4 Collapsible Feeding Box
The feeding box is designed to be collapsible for storage or transport. Ensure it is securely unfolded and locked into position before operation.

Image 3.3: Illustration of the collapsible feeding box for storage or transport.
4. Mode d'emploi
Follow these steps for safe and effective operation of your DCH7 Wood Chipper.
4.1 Démarrage du moteur
- Ensure the chipper is on a level surface and the emergency stop bar is disengaged.
- Tournez le robinet d'essence sur la position « ON ».
- Set the choke lever (if cold starting).
- Turn the ignition key to the 'START' position. Release when the engine starts.
- Once the engine is running, gradually move the choke lever to the 'OFF' position.
4.2 Matières premières
The DCH7 features a 7.5x6.5 inch feed roller and dual variable speed hydraulic infeed system. It can handle wood or branches with a maximum diameter of 7 inches.
- Always feed material butt-end first.
- Do not force material into the feeder. The hydraulic infeed will pull the material automatically.
- Use the three-gear control bar to manage the feeding speed and direction (Motor Reversal, Motor Advance, Motor Stopped).
- Never reach into the feed chute while the machine is running.

Image 4.1: The wood chipper actively processing a branch, demonstrating its feeding capability.

Image 4.2: Visual representation of the chipper's maximum 7-inch material capacity.

Image 4.3: Diagram illustrating the motor control bar for feed roller operation.
4.3 Discharge Chute Adjustment
The 360° rotary discharge chute and adjustable deflector allow for precise debris discharge. Adjust the chute direction and deflector angle to direct chipped material as needed.

Image 4.4: Illustration of the 360-degree rotating discharge chute and its adjustable height.
4.4 Arrêt
- Laissez le moteur tourner au ralenti pendant quelques minutes pour qu'il refroidisse.
- Tournez la clé de contact sur la position « ARRÊT ».
- Tournez le robinet d'essence sur la position « ARRÊT ».
5. Entretien
Regular maintenance ensures the longevity and optimal performance of your DCH7 Wood Chipper.
5.1 Entretien du moteur
Refer to the Honda GX690 engine manual for detailed maintenance schedules. Key tasks include:
- Changements d'huile : Check oil level before each use and change oil at recommended intervals.
- Filtre à air : Nettoyez ou remplacez régulièrement le filtre à air, surtout en cas de poussière.
- Bougies: Inspectez et remplacez les bougies d'allumage au besoin.

Image 5.1 : Détail view of the Honda GX690 engine, highlighting its specifications and features.
5.2 Entretien de la lame
The chipper is equipped with 2pcs 8'' blades and 2pcs 6'' anvil made of A8(5Cr8MoVSi) material. Sharp blades are crucial for efficient chipping.
- Inspect blades for sharpness and damage before each use.
- Blades can be sharpened or replaced. The discharge chute can be fully opened for easier access during maintenance and blade replacement.
- Portez toujours des gants épais lorsque vous manipulez des lames.
5.3 Système hydraulique
Regularly check hydraulic fluid levels and inspect hoses and connections for leaks or damage.
5.4 Nettoyage et stockage généraux
- Clean the chipper thoroughly after each use, removing all wood chips and debris.
- Store the chipper in a dry, secure location. The feeding box can be collapsed for more compact storage.
- Ensure the 12V36Ah lead-acid battery is properly maintained, especially during extended storage periods.
6. Dépannage
This section addresses common issues you might encounter with your DCH7 Wood Chipper.
6.1 Le moteur ne démarre pas
- Vérifiez le niveau de carburant.
- Assurez-vous que le robinet de carburant est ouvert.
- Check battery connections and charge level for electric start.
- Verify the emergency stop bar is disengaged.
- Vérifiez que la bougie d'allumage n'est pas encrassée ou endommagée.
6.2 Chipper Jams
- Immediately engage the emergency stop bar.
- Allow all moving parts to come to a complete stop.
- Clear the jam manually, ensuring hands and tools are kept away from blades.
- Restart the machine and feed material at a slower rate or smaller diameter.
6.3 Poor Chipping Performance
- Inspect blades for dullness or damage. Sharpen or replace as necessary.
- Ensure the engine is running at full RPM.
- Verify the material being fed is within the 7-inch maximum diameter.
7. Spécifications
| Fonctionnalité | Spécification |
|---|---|
| Numéro de modèle | DCH7 (Item Model Number: 110700H) |
| Moteur | Honda GX690, 22HP, 688cc, Twin Cylinder, Gasoline, Air-cooled 4-stroke OHV |
| Batterie | 12V36Ah Lead-Acid |
| Feed Roller Size | 7.5 x 6.5 pouces |
| Diamètre de burinage maximal | 7 pouces |
| Lames | 2pcs 8'' blades, 2pcs 6'' anvil (Material: A8(5Cr8MoVSi)) |
| Infeed System | Dual Variable Speed Hydraulic |
| Chute de décharge | 360° Rotary, Adjustable Deflector, 90 inches height |
| Roues | Two 5.3-12 Tubeless Rear Wheels, One Front Wheel |
| Empattement | 52.5 pouces |
| Dimensions du produit (L x l x H) | 137 x 55 x 90 pouces |
| Poids de l'article | 1389 livres |
| Fabricant | MechMaxx |

Image 7.1: Illustration of the wheel and wheelbase dimensions.

Image 7.2: Detail of the tail lights and electrical connector for safe transport.
8. Garantie et assistance
MechMaxx is committed to customer satisfaction and product reliability.
- Plan de protection : A 3-Year Protection Plan may be available for this product. Please refer to your purchase documentation for details.
- Assistance clientèle : For technical assistance, parts, or warranty claims, please contact MechMaxx customer support.
- Fabricant: MechMaxx
- Boutique en ligne: Visitez le MechMaxx Store pour plus d'informations et de produits.





