1. Introduction
Thank you for choosing the LawnMaster CLGT2425S 24V Cordless Grass Trimmer. This manual provides essential information for the safe and effective use of your new tool. Please read it thoroughly before assembly, operation, or maintenance. Keep this manual in a safe place for future reference.
Key Features:
- Powerful and Lightweight: Equipped with a 24V 2.0Ah lithium-ion battery and a powerful motor reaching up to 25,000 RPM for efficient trimming.
- 2-in-1 Functionality: Easily converts between a grass trimmer and an edger with a 3-position 180° pivoting head.
- Ergonomic Design: Features a telescopic shaft and an adjustable front handle to suit various user heights. A removable wheel kit is included for enhanced comfort during use.
- Hassle-Free Cutting: Automatic line feed system with a 1.6 mm line ensures continuous trimming performance.
- Cut Protection: A retractable plant guard helps protect trees, flowers, and other delicate garden features from accidental cutting.
2. Safety Information
Always observe basic safety precautions when using electrical tools to reduce the risk of fire, electric shock, and personal injury. Read and understand all instructions before operating this product.
General Safety Warnings:
- Wear appropriate personal protective equipment (PPE) including eye protection, long trousers, and sturdy footwear.
- Keep children and bystanders away from the operating area.
- Do not operate the trimmer in wet conditions or rain.
- Ensure the battery is fully charged before use and removed when not in use or during maintenance.
- Inspect the trimmer for any damage before each use. Do not use if damaged.
- Avoid operating the trimmer near fences, walls, or other hard objects that could cause the line to break or ricochet debris.
3. Package Contents
Carefully unpack all items and ensure you have received the following:
- LawnMaster CLGT2425S Cordless Grass Trimmer Unit
- 24V 2.0Ah Lithium-ion Battery
- Battery Charger
- Adjustable Front Handle
- Removable Wheel Kit
- Retractable Plant Guard
- User Manual
If any items are missing or damaged, please contact customer support.
4. Setup
4.1. Charging the Battery
Before first use, fully charge the 24V lithium-ion battery. Connect the charger to a power outlet and insert the battery. The indicator light on the charger will show the charging status. A full charge typically takes approximately 3 hours.

Image: The LawnMaster 24V lithium battery system, showing the interchangeable battery pack and charger.
4.2. Assembling the Trimmer
- Attach the Front Handle: Slide the adjustable front handle onto the telescopic shaft and secure it at a comfortable position using the locking mechanism.
- Adjust the Telescopic Shaft: Extend or retract the telescopic shaft to your desired length for comfortable operation. Lock it in place.
- Install the Wheel Kit: Attach the removable wheel kit to the trimmer head assembly. This provides support and makes edging easier. Ensure it clicks securely into place.
- Insert the Battery: Once charged, slide the battery pack into the designated slot on the trimmer handle until it locks.

Image: Illustration of the LawnMaster trimmer's adjustable features, including the telescopic shaft and handle adjustment points.
5. Operating Instructions
5.1. Starting and Stopping
- To start the trimmer, press the safety lock-off button and then squeeze the trigger switch.
- To stop the trimmer, release the trigger switch.
5.2. Trimming Grass
Hold the trimmer firmly with both hands. Swing the trimmer from side to side, keeping the cutting line parallel to the ground. Avoid forcing the trimmer into thick vegetation; allow the line to do the work.

Image: The LawnMaster grass trimmer being used to trim grass in a well-maintained garden setting.
5.3. Edging Function
The trimmer head can pivot 180 degrees for edging. To switch to edging mode:
- Ensure the trimmer is off and the battery is removed.
- Locate the pivot release button/lever on the trimmer head.
- Press the release and rotate the trimmer head 180 degrees until it locks into the edging position.
- Re-insert the battery. For edging, use the wheel kit for stability and guide the trimmer along the edge of your lawn or path.

Image: Diagram illustrating the 180-degree pivoting head of the trimmer, showing its various angle adjustments for trimming and edging.
5.4. Automatic Line Feed
The trimmer features an automatic line feed system. When the cutting line wears down, it will automatically extend more line as needed during operation. If the line does not feed, briefly tap the trimmer head on a hard surface while running (with caution and appropriate PPE) to advance the line.
5.5. Using the Plant Guard
The retractable plant guard can be deployed to create a barrier between the cutting line and delicate plants, trees, or other objects you wish to protect. Simply pull it down into position when needed.

Image: The LawnMaster trimmer being used to trim grass near a garden bed, demonstrating the use of the plant guard to protect flowers.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your trimmer. Always remove the battery before performing any maintenance.
6.1. Cleaning
- After each use, clean the trimmer housing with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Remove any grass clippings or debris from the cutting head and guard.
6.2. Replacing the Cutting Line
When the cutting line is depleted, it needs to be replaced. Refer to the product specifications for the correct line diameter (1.6 mm). Follow the instructions provided with your replacement spool for proper installation.
6.3. Battery Care and Storage
- Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures.
- For long-term storage, charge the battery to approximately 50% capacity.
- Do not store the battery connected to the trimmer or charger.
7. Troubleshooting
If you encounter issues with your trimmer, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer does not start | Battery not charged or improperly inserted. Safety lock-off not engaged. | Ensure battery is fully charged and correctly inserted. Press safety lock-off before squeezing trigger. |
| Cutting line does not feed automatically | Line is tangled or depleted. | Remove battery, inspect spool for tangles. If depleted, replace the cutting line spool. Briefly tap trimmer head on ground while running to advance line. |
| Reduced cutting performance | Line is too short or worn. Battery charge is low. | Advance or replace cutting line. Recharge battery. |
| Excessive vibration | Cutting line unevenly wound or damaged. | Remove battery, inspect and re-wind or replace cutting line. |
If the problem persists after attempting these solutions, please contact LawnMaster customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | CLGT2425S-03 |
| Battery Type | Lithium-ion |
| Battery Voltage | 24V |
| Battery Capacity | 2.0Ah |
| Cutting Width | 25 cm |
| No-Load Speed | 25,000 RPM |
| Line Diameter | 1.6 mm |
| Product Dimensions (L x W x H) | 91.5 x 19.8 x 15.5 cm |
| Item Weight | 3.2 kg |
| Power Source | Battery Powered |
| Assembly Required | Yes |
9. Warranty and Support
9.1. Warranty Information
LawnMaster provides a 2-year availability for spare parts within the EU. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. It does not cover damage due to misuse, neglect, accident, alteration, or improper maintenance.
9.2. Customer Support
For technical assistance, spare parts, or warranty inquiries, please contact LawnMaster customer support. Refer to the product packaging or the LawnMaster official website for contact details specific to your region.





