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the nut or retainer that holds the head on or is part of the head is a left hand thread
so to undo it the action is as if you are doing up a normal nut
turn it clockwise to undo
Hi, Try cutting the string with a knifing straight clean. Then try again.
It won't go if it is frayed or chewed up. Also make sure you have the correct size of string. Some trimmers only use certain sizes of string to fit the head unit. Good luck.
I have a Ryobi Model RY28040 straight shaft line trimmer. In my case I replaced the complete String Head Assembly that includes the String Head Housing, Spring, and Spool and the string still did not advance. I then discovered that the bolt in the Spool Retainer cap (the red cap that attaches the spool to the shaft) was fused and not moving. The bolt needs to be loose inside the cap in order to allow the spool to move in and out by the spring. I loosened the bolt and fastened the spool back onto the shaft. Fired it up and bumped it a few times and the line began to advance. Turns out I probably only needed to replace the Spool Retainer rather than the String Head Assembly.
Usually string trimmers come with line already in it. If there is no line in it take the head apart. how you do this is as you push down on the bump as you hold the bottom part of head and twist the head should come apart..to sting the trimmer some are different some you have to cut the string and wrap two strings two different ways some you use one long piece and you wrap it.... you will noticed on the head there will be little indicators that tell you which way to wrap the string.. if you have any questions please let me know..
A typical trimmer has a small bump knob, an inner spool with the plastic string wound on it and the housing for that which is the string head.To remove the small bump knob, hold string head firmly and turn the bump knob counterclockwise. To remove the head entirely, first remove the bump knob. Next, remove the inner spool with string. What should be left is the spring with the end of the gear shaft showing. Some heads are locked on and some just slip over the end of the shaft. Check the gear drive just above the string head for any holes in the collar. An object can be placed in one of the holes to lock the drive and twist the head off.Ryobi's use retaining clips on the shaft which have to be removed.
The only way to access the bottom of the metal shaft is to break it. This is fused on at the factory. It sounds like your flexshaft has twisted in two. Remove the flex shaft from the engine end and see if it is in one whole piece or is damaged in someway. If it rotates at the top but doesn't rotate at the string head this is probably the problem. However, Homelite no longer offers just the flex shaft for purchase. You would probably have to purchase the shaft and the tube as a unit.
But if you are saying the spool and string is not turning at the bottom it could be that the cup which holds the string has worn and can not longer be turned by the shaft. Replace the cup that holds the string.
Another possibility is that the shaft have moved forward, away from the engine and just need to be jammed back in, and retightened (the handle grip and the boom clamp).
Or sometimes you unscrew a retaining bolt set into a plastic "lug", the spool drops out, refill t with line, replace it putting line through holes in the spool casing, refit the "lug" and tighten it again. I think I have the manual for this though and if so maybe I can send you a link to images on MSN Homepage to help you..
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