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How to Change the Spool on a Troy-Bilt Weed Eater

Troy-Bilt weed eaters are used to trim grass and weeds that grow around objects that the lawn mower cannot get to. A spool that has cable wound up around it rapidly spins and cuts the grass and weeds. The cable slowly erodes when cutting your weeds and it will eventually run out. You will then have to replace the empty spool with a full spool on your Troy-Bilt weed eater to keep trimming the grass and weeds.

Disconnect the spark plug wire from your weed eater to prevent the weed eater from starting up when you are replacing the spool.

Grasp the bump knob and turn it counterclockwise. The bump knob is the knob that allows you to feed more cable out by bumping the weed eater into the ground.

Remove the bump knob, along with the spring and foam seal.

Grasp the empty inner reel and remove it from the outer reel by pulling it straight off.

Cut off the plastic wrap around your new inner spool. Go slow so the cable doesn't rapidly unwind from the reel.

Feed the cable ends from the inner spool into the eyelets on the outer spool. Keep the remainder of the cable tight on the inner spool.

Locate the arrow and push the inner spool on to the outer spool with the arrow side facing toward the outer spool.

Install the foam seal, spring and bump knob in the same manner as they came off. Turn the bump knob clockwise to lock everything into place.

Grab the end of each cable and give it a firm tug. This will release the cable from the holding slots on the inner spool.

Place the spark plug wire back on to the spark plug.

Restring A Troy-bilt Weed Eater

With the trimmer turned off, twist the inner spool counterclockwise to align its arrows with the arrows the outer spool. With the tension released, remove any leftover line by pulling on it. Cut a piece of replacement line 10 feet long. Push one end of the line through the eyelet on the side of the outer spool, and pass it through the line loading hole on the inner spool. The line will emerge near the bump button. Use the other eyelet on the outer spool this time. Periodically, stop winding and tug on both lines so that 1 or 2 inches unwind from the spool. This will keep the line from jamming. Continue until all the line is on the spool except for 4 inches. Twist the inner spool clockwise to lock the line in place. Remove the inner spool from the outer spool. With the arrow side up on the pre-wound spool, insert the lines into the eyelets of the outer spool, and then slide the pre-wound spool into the outer spool.

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