How To Replace The Line In The ECHOmatic Trimmer Head The ECHOmatic trimmer head has a pro version, but you restring them almost the same way. You'll need to bring out the spool to replace the ...

Place the spool back into the string trimmer, making sure to thread the line into the hole or holes in the spindle as you do. Some string trimmers have grooves that you can drop the line into as ...

The trimmer string wraps around a spool that sits inside the rotating head. There are two methods to refill it—replace the whole spool, or rethread a new length of string.