How to Replace the Line on a String Trimmer
Most electric- and gasoline-powered string trimmers for home or commercial use have trimmer heads that advance the monofilament line while in operation. When all the line is used and it's time to add more, you can either replace the entire spool or wind on new line. You can buy bulk monofilament in 50- and 100-foot lengths or by the pound. Does this Spark an idea?
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Instructions
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1
Select the correct diameter monofilament line. Common sizes for electric trimmers are .065 inch and .080 inch. Gasoline models use .080 inch, .095 inch, .105 inch and .155 inch.
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Turn the motor off and lay the trimmer on a flat surface with the line head facing up. If the string trimmer is electric, unplug it.
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3
Hold the head with one hand and remove the cover with your other hand. Most covers unscrew counterclockwise. Some have locking safety tabs that you'll need to depress before the cover will unscrew.
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4
Pull out the string trimmer's empty spool. If you're replacing it, insert the new spool and thread six inches of line through the eyelet or eyelets in the housing. If you're winding new line onto the old spool, follow the steps below.
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Thread single-strand replacement line about an inch into the molded loop or tab in the housing. If your trimmer uses double cutting lines, measure out about 30 feet and feed half of it through the molded loop.
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Look for an arrow on the spool to indicate the direction to wind on the monofilament. Wind the line or lines on in straight rows until the spool is about three-fourths full. Double lines should both be wound in the same direction.
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Thread six inches of line through the eyelet or eyelets in the housing. Reinstall the spool, align the cover with any tabs on the housing, and screw the cover on. Test the trimmer's head by depressing the center button while pulling on the line. The line should advance about an inch.
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