1. Wichtige Sicherheitshinweise
Sicherheit hat beim Umgang mit Elektrowerkzeugen stets oberste Priorität. Die Nichtbeachtung dieser Anweisungen kann zu schweren Verletzungen oder Sachschäden führen.
- Persönliche Schutzausrüstung: When operating, always wear appropriate protective equipment, including safety glasses, heavy-duty gloves, long pants, and suitable footwear. Hearing protection is also recommended.
- Arbeitsbereich löschen: Ensure the work area is clear of people, children, pets, and fragile objects before starting the brush cutter. Maintain a safe distance from others.
- Fliegende Trümmer: Be aware of the risks of flying debris. The cutting line or blade can propel small objects at high speeds. Direct the cutting head away from yourself and others.
- Vor Gebrauch prüfen: Before each use, inspect the tool for any damage, loose parts, or worn components. Ensure the guard is securely in place.
- Batteriesicherheit: Use only Greenworks 40V lithium-ion batteries and chargers. Do not expose batteries to water, extreme temperatures, or direct sunlight.
- Richtige Handhabung: Hold the brush cutter firmly with both hands using the bike handle. Use the included harness for improved control and reduced fatigue.
For detailed safety guidelines, refer to the complete safety section in the printed manual.
2. Packungsinhalt
Carefully unpack your Greenworks GD40BCB brush cutter and verify that all items are present and undamaged. This package typically includes:
- Greenworks 40V Cordless Brush Cutter (main unit with string trimmer head)
- Bedienungsanleitung
- Brush Cutter Blade (for heavy-duty clearing)
- Einstellbarer Kabelbaum
- Bike Handle Assembly
Note: Battery and charger are sold separately and are not included with this tool-only package.

Image: Included components of the Greenworks GD40BCB package.
3. Montage und Einrichtung
Follow these steps to assemble your brush cutter before initial use.
3.1 Attaching the Bike Handle
- Lösen Sie die Klammeramping bolts on the bike handle assembly.
- Positionieren Sie den Fahrradlenker in einer angenehmen Höhe und einem bequemen Winkel auf der Achse.
- Ziehen Sie die Klammer fest.amping bolts securely to prevent rotation during operation.

Image: Adjustable bike handle for ergonomic control.
3.2 Installing the Guard
The guard must always be installed to protect against flying debris.
- Slide the guard onto the shaft until it aligns with the mounting holes.
- Secure the guard with the provided screws and tighten them firmly.
3.3 Attaching the Cutting Head (Line Trimmer or Blade)
Your tool can be used with either a nylon line head or a brush cutter blade.
- For Line Trimmer Head: Ensure the line head is securely fastened to the shaft. Refer to the manual for specific attachment instructions if it needs to be reinstalled.
- Für Freischneiderklinge: Remove the line trimmer head. Carefully align the brush cutter blade onto the mounting flange and secure it with the provided hardware (washer, nut). Ensure the blade is oriented correctly and tightened to the specified torque.
3.4 Einlegen des Akkus
- Stellen Sie sicher, dass der Akku vollständig geladen ist.
- Slide the 40V battery into the battery compartment on the tool until it clicks into place.
- Zum Entnehmen den Batterieentriegelungsknopf drücken und die Batterie herausschieben.
4. Bedienung
Understand how to safely and effectively operate your Greenworks GD40BCB brush cutter.
4.1 Starten und Stoppen des Werkzeugs
- Anfangen: Press and hold the safety lock-out button, then squeeze the trigger switch. The tool will start.
- Stoppen: Release the trigger switch. The tool will stop immediately.
4.2 Using the String Trimmer Head
The string trimmer is ideal for cutting grass and light weeds.
- Schnitttechnik: Use a sweeping motion, moving the cutting head from side to side. Keep the cutting head slightly above the ground.
- Zeilenvorschub (Bump Feed): To advance the cutting line, lightly tap the bump knob on the ground while the tool is running. The line will automatically extend.
- Unterschiedliche Geschwindigkeit: The trigger allows for variable speed control. Apply more pressure for higher speed and cutting power.

Image: String trimmer head in action, trimming grass.
4.3 Using the Brush Cutter Blade
The brush cutter blade is designed for clearing dense brush, thick weeds, and small saplings.
- Schnitttechnik: Use a controlled, deliberate motion. Avoid forcing the blade through thick material. Let the blade do the work.
- Sicherheit: Always be extra cautious when using the blade. Ensure no hard objects (rocks, metal) are in the cutting path that could damage the blade or cause kickback.
- Verwendung des Gurtes: The adjustable harness is crucial for comfortable and safe operation, especially when using the brush cutter blade for extended periods. Adjust it to distribute the tool's weight evenly.

Image: Brush cutter blade clearing dense vegetation.
5. Wartung
Regular maintenance ensures the longevity and optimal performance of your Greenworks GD40BCB.
5.1 Reinigung
- Entfernen Sie vor der Reinigung immer die Batterie.
- Wipe down the tool with a damp cloth after each use to remove grass, dirt, and debris.
- Clean the air vents to prevent overheating.
5.2 Cutting Line and Blade Care
- Trimmerfaden: Replace worn or broken cutting line as needed. Use only 2.0mm diameter nylon line.
- Freischneiderklinge: Inspect the blade for dullness, cracks, or damage. Sharpen dull blades with a suitable file or replace damaged blades.
5.3 Schmierung
Periodically lubricate the angle housing. There are typically two lubrication holes near the cutting head. Apply angle housing grease once per season or as recommended in the full manual.
5.4 Batterielagerung
Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures. For long-term storage, charge batteries to approximately 50%.
6. Fehlerbehebung
This section addresses common issues you might encounter with your Greenworks GD40BCB.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Werkzeug startet nicht | Batterie nicht richtig eingelegt Batterie nicht geladen Sicherheitsverriegelung nicht aktiviert | Stellen Sie sicher, dass der Akku vollständig eingesetzt ist. Laden Sie den Akku auf Press safety button before trigger |
| Die Schneidelinie bewegt sich nicht vorwärts | Line tangled or fused Insufficient line remaining Bump feed mechanism jammed | Remove battery, untangle/replace line Reload with new line Clean bump feed mechanism |
| Reduzierte Schnittleistung | Dull brush cutter blade Worn cutting line Niedriger Akkuladestand | Klinge schärfen oder ersetzen Schneidfaden ersetzen Akku aufladen |
| Übermäßige Vibration | Beschädigte oder unausgewogene Klinge Lose Komponenten | Prüfen Sie die Klinge und ersetzen Sie sie gegebenenfalls. Check all fasteners and tighten |
If you encounter issues not listed here or if solutions do not resolve the problem, contact Greenworks customer support.
7. Spezifikationen
Key technical specifications for the Greenworks GD40BCB 40V Cordless Brush Cutter.
| Besonderheit | Spezifikation |
|---|---|
| Modellnummer | 2105707 |
| Bandtage | 40 Volt (DC) |
| Motortyp | Bürstenloser Motor |
| Schnittbreite (Linie) | 40 cm |
| Schnittbreite (Klinge) | 25.4 cm |
| Liniendurchmesser | 2.0 mm |
| Line Feed System | Bump-Feed |
| Geschwindigkeit | 6300 U/min |
| Gewicht (ohne Batterie) | 4.5 Kilogramm |
| Abmessungen (L x B x H) | 91 x 30.5 x 12 cm |
| Stromquelle | Rechargeable Battery (40V Lithium-ion) |
8. Garantie und Support
Greenworks steht für die Qualität seiner Produkte ein.
8.1 Garantieinformationen
This Greenworks GD40BCB brush cutter comes with a 3 Jahr Garantie Diese Garantie gilt ab Kaufdatum und deckt Material- und Verarbeitungsfehler bei normalem Gebrauch ab. Bitte bewahren Sie Ihren Kaufbeleg für Garantieansprüche auf.
The warranty does not cover damage resulting from misuse, abuse, neglect, unauthorized repairs, or normal wear and tear. For full warranty terms and conditions, please refer to the warranty card included with your product or visit the official Greenworks webWebsite.
8.2 Kundendienst
If you have any questions about the assembly, operation, maintenance, or troubleshooting of your Greenworks GD40BCB, please contact Greenworks customer support. You can typically find contact information (phone numbers, email, or online support portal) on the Greenworks official webWebsite oder in der Produktverpackung.
When contacting support, please have your product model number (GD40BCB or 2105707) and serial number (if applicable) ready to assist them in providing efficient service.