Basic Weed Eater Troubleshooting Guide

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Just like every other machine, weed eaters sometimes encounter problems and malfunctions. Some of these problems may require expert attention, but there are many which you can rectify by yourself.

Weed wacker, another name for weed eaters, are available in three main types: gas, electric, and battery-powered. Although they have separate sources of power, each of these types operates in a similar manner to cut weeds and grass.

All come with a drive shaft that holds the string. This string is spun at a high speed by the motor of the system. When the string spins quickly enough, it trims the grass that it comes into contact with.

If you are a do-it-yourself type of person, you will be able to troubleshoot and rectify some common problems that your weed eater may have, resulting from usage. Here are some common problems and how to troubleshoot them, depending on the type of weed eater you are using:

  • Starting problem/difficulty starting

The man starts a weed trimmer on a lawn

  • When a man/woman starts a weed trimmer on a lawn.
  • Starting a gasoline-powered weed trimmer motor.
  • Starting problem, or difficulty starting, is mostly experienced in gasoline-powered weed eaters.

  • One common cause of failure to start is a problem with fuel. If you add too much oil to the fuel in the 2-cycle string trimmer, the spark plug can be affected and might cause the motor to fail to start. If you add too little oil to the gas, there is a tendency for the motor to get burnt. This is also applicable to a 4-cycle engine if the oil level drops too low. It is advisable that you use fresh oil to the ratio of 40 parts gasoline to 1-part oil.
  • Weak or bad spark plugs can also prevent the motor from starting. When the spark plug is bad, the motor might also run too quickly and cut out, or else it might run too slowly. This means that the weed eater’s engine might start but will not function as well as it should. In this case, you have to change the spark plug to correct the problem. If the spark plug is good, or you just changed it and are still experiencing inconsistent running of the engine, you may need to adjust the idle speed of your weed eater.
  • Check the screws by the side of the motor and adjust as necessary. One screw is for high-speed operation, whilst the other is for idle operation. You need to turn the idler set screw during idle operation for the motor to smoothly and effortlessly idle at the proper speed, to prevent the turning of the trimmer’s head. You turn the high-speed set screw when you pull the trigger to operate the tool at a high speed. This way, you will gain the highest rpm and the motor will still be functioning.

Troubleshooting for Electric and Battery Powered Weed Eaters

Electric and battery-powered weed eaters come with fewer moving parts and do not require much maintenance. However, they can malfunction on occasion. When problems occur, you can troubleshoot them yourself, depending on the nature of the problem.

  • Ensure that your battery is fully-charged before you start trimming, so that you will be able to complete the task without running out of power. But, if your yard or lawn takes more time to be trimmed, you should consider getting a second battery or a bigger capacity battery.
  • If you are using an electric-powered weed eater, make sure that the electric outlet where it will be plugged in is sturdy and able to provide the necessary power, without tripping the breaker. Check along the cord for visible wear-and-tear or damage.
  • It is important that you use the right thickness of line and check that it is properly wound, regardless of whether or not the head of your trimmer is bump feed or automatic feed. If the line is thicker, it may not feed at all. If the line is thinner, it will feed too much. Check the user manual for the specified line thickness and stick to it.

 

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