GreenWorks GD40BC User Manual (English)

Questions and Answers:

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pleeJul 25, 2025
What to do if the line does not extend on GreenWorks Trimmer?
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  Scott ThompsonJul 26, 2025
  If the line on your GreenWorks Trimmer isn't extending, it might be due to a few reasons. The lines could be welded together, in which case you should lubricate them with silicone spray. Alternatively, there might not be enough line on the spool, so install more. Also, check if the lines are worn and too short, requiring you to extend them. Finally, tangled lines can also prevent extension, so remove the lines from the spool and rewind them.
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robertjonesJul 29, 2025
How to start GreenWorks GD40BC Trimmer if it does not start?
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  Joshua AndersonJul 29, 2025
  If your GreenWorks Trimmer isn't starting when you push the trigger, there could be a few reasons. First, ensure there's good electrical contact between the battery and the machine by removing the battery pack, checking the contact points, and reinstalling it. Also, make sure your battery is charged. Finally, remember to pull and hold the lock-out button while pulling the trigger to start the trimmer.
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Jeffrey WuAug 3, 2025
Why does my GreenWorks Trimmer keep stopping when I am cutting?
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  Michelle FischerAug 3, 2025
  If your GreenWorks Trimmer stops while you're cutting, several factors could be at play. Here's what to check: * Make sure the guard is properly attached to the machine. * Ensure you're using the correct nylon cutting line (2 mm diameter). * The grass winds around the motor shaft or the trimmer head. Stop the machine, remove the battery pack, and clear any grass. * Avoid overloading the motor by moving the trimmer head in and out of the grass, removing no more than 20 cm in each pass. * If the battery pack or machine is too hot, allow them to cool down. * Ensure the battery pack is properly connected.
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christina27Aug 7, 2025
Why does the line keep breaking on my GreenWorks GD40BC?
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  Shawn LiAug 7, 2025
  If the line on your GreenWorks Trimmer keeps breaking, it's likely due to incorrect usage. To prevent this, cut with the tip of the line and avoid hitting stones, walls, and other hard objects. Also, advance the cutting line regularly to maintain a full cutting width.
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Nancy TateAug 12, 2025
How to prevent grass from winding around the trimmer head of GreenWorks GD40BC Trimmer?
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  Michael ButlerAug 12, 2025
  To prevent grass from winding around the trimmer head and motor housing of your GreenWorks Trimmer, avoid cutting tall grass at ground level. Instead, cut tall grass from the top down, removing no more than 20 cm in each pass.
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Melissa RodriguezAug 16, 2025
What to do if GreenWorks Trimmer line does not cut well?
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  Kristin CrawfordAug 16, 2025
  If the line on your GreenWorks Trimmer isn't cutting well, the cut-off blade may have become dull. Sharpen the cut-off blade with a file or replace it.
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Rebekah HallAug 20, 2025
Why does my GreenWorks GD40BC vibrate so much?
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  Thomas ClarkAug 20, 2025
  If you notice a significant increase in vibration while using your GreenWorks Trimmer, it could be because the line is worn down on one side and hasn't been extended in time. Ensure that the line on both sides is equal and extend the line.

GreenWorks GD40BC Specifications

General

Power source	Battery
Type	String trimmer
Cordless	Yes
Head type	-
Handle type	D-loop handle
Line diameter	2 mm
Product color	Black, Green
Rotational speed	5300 RPM
Cutting diameter (max)	400 mm