For all other Grass Gator heads use the following instructions:

Before installing the Grass Gator onto you trimmer, you have to remove your original line head from your trimmer as a single unit by unscrewing it off. Do not remove the spool and line to do this. The OEM head will unscrew off your trimmer by hand, and you have to unscrew the head to the right because it is on a left hand threaded shaft. The trimmer's shaft needs to be secured before the head will unscrew from the trimmer.

There are three basic methods on gas trimmers used to secure the shaft:

directly above the original line head you will find either a large exposed nut that you can hold with a wrench or pair of pliers, a narrow metal collar with a small hole or U shaped slot that you can insert a tool into, or a hole in the metal housing just above the head that also requires the insertion of a tool (nail, drill bit, or the small round tool that is generally supplied with the trimmer).

Once the head is removed, you will have exposed a short shaft - generally less than 1 inch long - locate the left hand nut from our kit that correctly fits the shaft and place it into the hexagon shaped recess area in the Grass Gator head. This is the side of the Grass Gator that will be pointing toward the ground.

Pick up the Grass Gator head with the nut in it, slide it onto the shaft (the nut and hex shaped recess are pointing away from the trimmer), and using the grass gator head as a wrench, screw it on until it is hand tight.

Congratulations! You are now ready to use the Grass Gator.