Hello, W/D here.
I'm attaching a post that I made last night to another friend, and maybe it will help you as well. One of two things is happening with you. Either the line is wound on in the wrong direction, or the spool is not stopping where it should when you bump it. I advised the person in the attached post not to add the graphite. I think that you should try it now. Clean the hole in the bottom of the spool, and the attachment point on the trimmer, and add the graphite. Bump ypur trimmer head on the ground several times before you start it up to distribute the graphite really well. If this doesn't get your machine running right, you should replace your spool. Don't forget the graphite with yoru new spool if you buy one; ti really works.
Read on: The poster had asked for pictures, which I didn't have.....
Hello, W/D here.
I'm afraid that mental pictures are the best I can do, but bear with me; I'm good at it....We'll go over the spool parts, and the first time you wind tha spool, don't put any line on it....just read the directions while you hold the spool in your hands. Get a feel for what you are going to do. See how it will fit where it needs to go.....
Pull the spool out of the head.
Just look at it. You'll see that it is actually two spools.
Look at the divider between the spools. See the notch?
Look at the middle of the spools, or the core, where the line winds on the spool. See the small holes, one for each spool?
Flip the spools upside down. Look at the bottom. Note the notches in the rim
of the bottom, and the arrows indicating the direction to wind the line. Look near the notches. There should be numbers next to the notches. This is the line size that fits your machine.
Take a brief look into the hole where the spool will attach to the head. We'll talk about that in a minute.
All right, let's do it. Remember, no line for the first walk thru. Take your line and snip the end at an angle, say about 45 degrees. Now take the pointed end and poke it about 1/8" into the small hole in the core of the inner spool (the spool closest to the bottom of the spool assembly). The purpose of placing the line in the hole is to anchor the line while you wrap (load) the spool. Start wrapping the line on the spool, going in the direction of the arrows. When you have that spool wrapped almost to the diameter of the rim, place the line in the bottom rim notch that is 180 degrees from the notch that is in between the spools. The line should fit into the notch snugly. You want about 6" of line to hang out past the notch and cut it so you have a 6" tail hanging out.
Now, fill the outer spool the same way. When you get it full, you'll pass that line into the notch in between the spools, and anchor it into the notch on the rim. Again, leave about a 6" tail, and cut it off.
Hard part's done. Get the spool close to the head, and thread the tails into the grommets on the machine head. Once both ends are in the grommets, straighten up the spool (align the notches holding the tails with the grommets) and push the spool into the head.
Almost there! When the spool is firmly set in the head, you'll feel a bit of a click, Grasp the tails, and tug on them enough to pull them out of the notches that were anchoring them to the rim.
Let's check our work. Push the spool in, simulating bumping the spool on the ground to advance the line. Once you have pushed it in, tug again on the tails. You should pull about an inch or so from each side, and then the line will stop.
Once you have that, you're done!
Now, about the hole in the bottom of the spool where it connects to the trimmer head....Sometimes, the line will be difficult to advance, so you should clean it out a bit from time-to-time. The trick that will help you is that, after cleaning it, put a little graphite dust in the hole. This lubricates the advancing mechanism without leaving an oily residue that will collect debris. Don't do it this time, maybe not next time, just some time. I probably do this maybe every eighth or tenth time I wind the spools or so. I buy the graphite usually at Lowe's
or similar. It's used for locks, but you an also get it at Hobby Lobby where it's used for Cub Scout race cars (Pinewood Derby). Same stuff.
Sorry about no pictures. Turns out you didn't need them after all!
You've been a great student, and it's been a pleasure.
Best regards, --W/D--