Question about Ryobi Garden
Without the make and model I can only suggest a general answer.
The gearhead of most trimmers will have a locking hole where a small metal shaft(rod) can be inserted so these heads can removed and installed. Look for over the gearhead for such a hole and give it a try. The trimmer head can be either left hand or right hand threaded; just depends on the direction of rotation.
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Posted on Jan 02, 2017
Try putting a wrench on the nut that is above the head to hold it steady. Then try turning the head off being aware that the stud the head spins on to has left handed thread on it.
Posted on Apr 23, 2009
The entire trimmer assembly (from the gearbox forward) will slide off of the drive shaft cover. On the side of the aluminum gearbox assembly, you will find a single screw. This is the "anti-rotation screw" (do not lose this). Then remove the small (approximately 1" diameter) clamp from the end of the gear box assembly and simply pull the entire cutting assembly off of the shaft.
If you just want to remove the trimmer bump head assembly, then you will need to lock the bump head assembly to prevent rotation while you are working. If you purchased this new, then there should be a small metal rod included with your accessories. This will fit in a small hole in the base of the gear box assembly 791-182193 and prevents the trimmer head from rotating.
Then proceed to remove the following items:
791-180814B (replaces 791-180814) Bump Head Knob Assembly
791-147495 Inner Reel (hold the trimmer string)
791-610636B (replaces 791-610636) Spring
791-612026 Retainer (be careful removing this so you do not inadvertently destroy it). If you intend to reuse the trimmer head. If not, then hack, pry, stab, etc.. until you mangle it enough to remove.
791-683301 Outer Spool & Eyelet Assembly should now slide out leaving only 791-612483
Spool Shaft which I will assume that you want to keep.
I replaced my entire string head assembly a couple of years ago (and subsequently misplaced it and am in fact wanting to purchase one) and replaced it with a grass-gater or similar.
I hope this helps.
Posted on Jul 19, 2009
push down and turn until it comes back up...now, on that spot that is all the way in, before it comes back up, pull up on it...got it ?? The release is located where the the spool is all the way down and getting the spool to "hang up" on that spot allows it to release...because it can't when running makes it a perfect location
Posted on Apr 18, 2010
There is a round, rotary black part between the metal piece to which the cutting head attaches and the outer plastic seat of the cutting head. There are two square slots, each about a quarter inch wide, on opposites sides of the black piece. Slide an Allen wrench or something similar firmly into the slot. Holding the Allen wrench in a stable position, turn the outer plastic ring of the cutting head (it has scalloped edges that can be gripped firmly) counter clockwise to unscrew the cutting head from the bolt on which it is mounted. Be careful with the tool (e.g. Allen wrench) used to hold the black piece steady, as it is plastic and could be damaged by the edge of the tool.
Posted on May 04, 2011
I can't get the trimmer head off echo 225 I insert the tool in the slot and turn the head clock wise but will not unscrew it just clicks
Posted on Jul 28, 2011
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