1. General Information
The Makita DUR369LZ is a cordless loop handle type brush cutter designed for efficient grass pruning and trimming lawn edges. It is powered by two 18V Li-ion LXT slide-type batteries (not included), delivering 36V power to a brushless motor. This tool features soft start, three-speed options (high, medium, low), and constant speed control to maintain performance under load, achieving up to 7,000 rpm.
Key features include Active Feedback Sensing Technology (AFT) for user protection, Automatic Torque Drive Technology (ADT) for optimal cutting speed, a reverse rotation switch for clearing debris, an electronic current limiter for overload protection, and an electric brake for enhanced safety.
Figure 1: Front view of the Makita DUR369LZ Line Trimmer.
Figure 2: Illustration of the Twin 18V (36V) power system.
2. Safety Instructions
WARNING: Read all safety warnings and instructions before operating this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
- Always wear appropriate protective clothing, including eye protection, gloves, and sturdy footwear, when using this string trimmer.
- Be aware of your surroundings and other people nearby to prevent injury from flying debris. Maintain a safe distance from bystanders and pets.
- Do not operate the trimmer in reverse rotation mode near people or animals, as this can increase the risk of debris being thrown.
- Always unplug the trimmer and allow it to stop completely before performing any maintenance, cleaning, or when changing accessories.
- Ensure the work area is clear of obstacles, rocks, and other debris that could be thrown by the cutting head.
- Do not use the tool in wet conditions or expose it to rain.
3. Setup
3.1 Unpacking and Inspection
Carefully remove all components from the packaging. Inspect the tool for any damage that may have occurred during shipping. If any damage is found, do not operate the tool and contact your dealer immediately.
Figure 3: Product packaging for the Makita DUR369LZ.
3.2 Included Components
The following items are typically included with your Makita DUR369LZ:
- Makita DUR369LZ Line Trimmer body
- Accessory bag
- Blade guard
- Box wrench
- Harness
- Hex wrench
- Metal 2-tooth blade
- Nylon cutting head
- Plastic blade
Figure 4: Makita DUR369LZ with its standard accessories.
3.3 Battery Installation
The DUR369LZ requires two 18V Li-ion LXT slide-type batteries (not included). Ensure batteries are fully charged before use. Insert the batteries into the designated slots until they click into place. The tool is not compatible with G-Series batteries.
Figure 5: Side view illustrating battery insertion area.
3.4 Blade Guard and Cutting Head Assembly
Attach the blade guard securely to the trimmer shaft using the provided fasteners. Then, install the desired cutting head (nylon cutting head, plastic blade, or metal 2-tooth blade) according to the instructions in the separate cutting head manual. Ensure all components are tightened properly before operation.
4. Operating Instructions
4.1 Powering On/Off
To power on the trimmer, press the main power button. The LED indicator will illuminate. To start the cutting head, depress the trigger switch. To power off, release the trigger and then press the main power button again.
4.2 Speed Selection
The DUR369LZ offers three speed options: low, medium, and high. Use the speed selection button to cycle through these settings. Choose the appropriate speed based on the application and type of vegetation being cut.
4.3 Reverse Rotation Function
If grass clippings or weeds become tangled around the cutting head, activate the reverse rotation switch. This will temporarily reverse the direction of the cutting head, helping to clear obstructions. Release the switch to return to normal operation. Always ensure no one is in the immediate vicinity when using this function.
4.4 Cutting Technique
Hold the trimmer firmly with both hands, maintaining a balanced stance. Use a sweeping motion to cut grass, moving from right to left for optimal cutting efficiency. Avoid striking hard objects or surfaces to prevent damage to the cutting head and potential kickback.
Figure 6: Proper operating posture for the line trimmer.
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your Makita DUR369LZ.
5.1 Cleaning
After each use, ensure the trimmer is powered off and batteries are removed. Clean the cutting head, blade guard, and motor housing to remove grass clippings, dirt, and debris. Use a dry cloth or soft brush. Do not use water or harsh chemicals.
5.2 Cutting Head Inspection and Replacement
Regularly inspect the nylon cutting head, plastic blade, or metal blade for wear, cracks, or damage. Replace worn or damaged cutting accessories promptly to maintain cutting performance and safety. Refer to the specific cutting head manual for replacement procedures.
Figure 7: Inspecting the cutting head for wear.
5.3 Storage
Store the trimmer in a dry, secure location out of reach of children. Remove batteries before long-term storage.
6. Troubleshooting
This section addresses common issues you might encounter with your DUR369LZ.
- Trimmer does not start: Ensure batteries are fully charged and correctly inserted. Check if the main power button is pressed.
- Cutting head stops during operation: The Active Feedback Sensing Technology (AFT) may have activated due to a sudden slowdown in rotation speed, protecting the user. Remove the obstruction and restart.
- Reduced cutting performance: Inspect the cutting head for wear or damage and replace if necessary. Ensure batteries are fully charged.
- Overload protection: The electronic current limiter will activate if the tool is overloaded. Reduce the load on the cutting head and allow the tool to cool before resuming operation.
- Battery issues: The battery protection circuit safeguards against over-discharge, overload current, and overheating. If batteries are not functioning correctly, ensure they are genuine Makita LXT batteries and not G-Series.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Makita |
| Model Number | DUR369LZ |
| Power Source | Battery Powered (Twin 18V (36V) Li-ion LXT) |
| Item Weight | 6.3 Kilograms |
| Cutting Width | 430 Millimeters |
| Speed | Up to 7000 RPM |
| Spindle Thread | M10 x 1.25 left |
| Handle Type | Loop Handle |
| Color | Turquoise |
8. Warranty and Support
The Makita DUR369LZ comes with a 1-year manufacturer warranty. An additional 2 years of warranty can be obtained by registering the product within 30 days of purchase. Please refer to the official Makita website for registration details.
Important: This guarantee does not apply if non-genuine or non-recommended parts or accessories are fitted to the tool. The use of non-genuine or incompatible batteries and chargers with Makita tools will invalidate the Makita guarantee for our tools.
For technical support, service, or warranty claims, please contact your authorized Makita dealer or visit the official Makita website for contact information.
