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How to put line on a trimmer spool

Updated February 21, 2017

A string trimmer is an essential tool for lawn maintenance. It can aid in the removal of overgrown weeds and grasses and act as a lawn edger. A nylon string at the bottom of the tool is responsible for the trimming action. It spins at a high rate of speed and cuts down any unwanted growth. Over time the nylon string will split or break, making it necessary to put new line in your trimmer.

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Establish the correct string size for your trimmer. Check the instruction booklet if you are not sure. The most typical size is 0.8 mm (1/32 inch).

Unscrew the cap on the bottom of the trimmer spool.

Remove the spool and discard any pieces of string that are still remaining.

Unroll the string from the replacement coil. Cut off a piece about 1.8 to 2.4 m (6 to 8 feet) long.

Feed the string through the starter hole on the spool.

Wind the string onto the spool. The string should be loaded in the direction indicated on the side of the spool.

Leave 15 to 20 cm (6 to 8 inches) of string remaining at the end of the spool. Thread this through the bottom of the opening on the spool.

Insert the spool back into the trimmer and feed the string through the hole to the side of the trimmer head.

Reattach the cap to the bottom of the trimmer.

Tip

If necessary, clean trimmer head with WD-40 or another silicone spray. This will remove any built-up trimmings and other debris.

Warning

Do not touch the trimmer spool while it is still rotating.

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Things You'll Need

  • Screw driver
  • trimmer string
  • WD-40

About the Author

Shelly Schumacher has a diverse writing background that includes work in print as well as electronic publications. She has been writing for over 18 years and enjoys working with a variety of different clients on both writing projects and as a marketing and public relations consultant. Schumacher holds a Bachelor of Science in journalism from the University of Wisconsin.

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