Einführung
Thank you for choosing the LawnMaster 20VMWGT 24V Max Lawn Mower and Grass Trimmer Combo. This manual provides essential information for the safe assembly, operation, and maintenance of your new lawn care tools. Please read these instructions thoroughly before first use and retain for future reference.
Sicherheitshinweise
Always observe basic safety precautions to reduce the risk of fire, electric shock, and personal injury. Familiarize yourself with the controls and proper use of the equipment. Keep children and bystanders away while operating the tools. Wear appropriate personal protective equipment, including eye protection, gloves, and sturdy footwear.
- Lesen Sie vor der Inbetriebnahme alle Anweisungen.
- Nicht bei Nässe betreiben.
- Stellen Sie sicher, dass der Akku vor der Verwendung vollständig aufgeladen ist.
- Inspect the area for debris before mowing or trimming.
- Always disconnect the battery before cleaning, adjusting, or performing maintenance.
Packungsinhalt
Prüfen Sie beim Auspacken, ob alle Artikel vorhanden sind:
- LawnMaster 24V Max 13-inch Lawn Mower
- LawnMaster 24V Max 10-inch Grass Trimmer
- (2) 24V Max 4.0Ah Batteries
- Ladegerät
- Grasfangsack für den Rasenmäher
- Trimmer Assist Handle
- Trimmerschutz
- Bedienungsanleitung
Aufstellen
1. Laden des Akkus
Insert the 24V Max 4.0Ah battery into the charger. Plug the charger into a standard electrical outlet. The indicator light on the charger will show the charging status. A full charge typically takes 2-4 hours. Do not overcharge the battery.

Image: LawnMaster 24V Max Battery and Charger. This image shows the 24V battery and its dedicated charger, illustrating how they connect for charging.
2. Rasenmähermontage
- Griffmontage: Attach the lower handle to the mower deck using the provided bolts and knobs. Secure the upper handle to the lower handle, ensuring all connections are tight.
- Grasfangsack: Assemble the grass collection bag frame and attach the fabric bag. Hook the assembled bag onto the rear of the mower.
- Einlegen der Batterie: Open the battery compartment cover. Slide a charged 24V Max battery into the battery slot until it clicks into place. Close the cover securely.

Image: LawnMaster 24V Max Cordless Lawn Mower in use. A person is operating the LawnMaster cordless lawn mower on a green lawn, demonstrating its typical use.
3. Grass Trimmer Assembly
- Griffhilfe: Attach the assist handle to the trimmer shaft at a comfortable position. Tighten the knob to secure it.
- Trimmer Guard: Slide the trimmer guard onto the trimmer head until it locks into place.
- Einlegen der Batterie: Insert a charged 24V Max battery into the battery port on the trimmer handle until it locks.

Image: LawnMaster 24V Max String Trimmer in use. A person is using the LawnMaster string trimmer to edge a lawn, highlighting its ergonomic design and function.
Bedienungsanleitung
Lawn Mower Operation
- Schnitthöhe einstellen: Use the height adjustment lever on the mower deck to select one of the 5 available cutting heights.
- Starten des Mähers: Press and hold the safety button, then pull the bail switch lever towards the handle. Release the safety button once the motor starts.
- Mähen: Push the mower forward in overlapping rows. Avoid overloading the motor by cutting excessively long or wet grass.
- Den Rasenmäher anhalten: Release the bail switch lever. The blade will stop rotating.
Grass Trimmer Operation
- Starten des Trimmers: Press the safety lock-off button, then squeeze the trigger switch.
- Beschneiden: Hold the trimmer firmly with both hands. Use a sweeping motion to cut grass. The 0.065” dual-line auto-feed system will automatically advance the line as needed.
- Schwenkbarer Kopf: The cutting head can pivot for edging tasks. Adjust the head to the desired angle before operating.
- Den Trimmer anhalten: Lassen Sie den Auslöseschalter los.
Wartung
Regelmäßige Wartung gewährleistet optimale Leistung und verlängert die Lebensdauer Ihrer Werkzeuge. Trennen Sie vor Wartungsarbeiten immer den Akku.
- Reinigung: After each use, clean the mower deck and trimmer head of grass clippings and debris using a brush or cloth. Do not use water directly on electrical components.
- Mähmesser: Periodically inspect the mower blade for sharpness and damage. A dull or damaged blade should be sharpened or replaced by a qualified service technician.
- Trimmerfaden: The trimmer features an auto-feed system. If the line does not advance, refer to the specific trimmer manual for instructions on manually advancing or replacing the line. Use only 0.065” diameter replacement line.
- Batteriepflege: Store batteries in a cool, dry place away from direct sunlight. Charge batteries fully before storage and every 3-6 months during extended storage to maintain battery health.
Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Mower/Trimmer does not start | Batterie nicht geladen oder falsch eingesetzt; Sicherheitsschalter nicht eingerastet. | Ensure battery is fully charged and correctly inserted. Engage safety button and bail/trigger switch simultaneously. |
| Reduzierte Schnittleistung | Dull mower blade; Trimmer line too short or tangled; Excessive grass height. | Sharpen or replace mower blade. Advance or replace trimmer line. Cut grass in smaller passes. |
| Mäher vibriert übermäßig | Damaged or unbalanced blade. | Inspect blade for damage. Replace if necessary. |
| Die Trimmerschnur wird nicht zugeführt | Line tangled in spool; Spool empty. | Remove battery, open spool housing, untangle or replace line. |
Technische Daten
- Modell: 20VMWGT
- Energiequelle: 24V Max Battery Powered
- Lawn Mower Cutting Width: 13 Zoll
- Lawn Mower RPM: 3700 U/min
- Lawn Mower Cutting Heights: 5 Positionen
- Schnittbreite des Rasentrimmers: 10 Zoll
- Grass Trimmer RPM: 9200 U/min
- Trimmerfaden-Durchmesser: 0.065 inches (dual-line auto-feed)
- Akku-Typ: 24 V, 4.0 Ah, Lithium-Ionen
- Ladeeingang: Standard-Klimaanlage
- Ladezeit: 2-4 Stunden
Garantieinformationen
LawnMaster products are manufactured to high-quality standards and are guaranteed for domestic use against manufacturing defects. Please refer to the warranty card included with your product for specific terms, conditions, and registration details. Keep your proof of purchase for warranty claims.
Kundenservice
For technical assistance, replacement parts, or service inquiries, please contact LawnMaster customer support. Contact information can typically be found on the product packaging or the official LawnMaster website. When contacting support, please have your model number (20VMWGT) and purchase date available.





