Ryobi trimmers are one of the most popular brands of string trimmerscut to length lineon the market today. They are quite powerful and carry a wide variety of models that easily fit all of your landscaping needs. But with any tool, common maintenance is needed to keep your string trimmer working to it's fullest potential. I talk to a lot of peopleslitting line that get so frustrated when the tool doesn't work correctly they simply end up purchasing a new tool, just to run into the same problems a few years later.handwheel I have good news though! Most of the Ryobi part repairs that cause these issues are quite easy to do and will ultimately save you a lot of money in the long run. This article is intended to go over a few simple repairs that can increase the life of your machine and in the long run, save some of your hard earned cash! The fist and most common Ryobi part needing to be replaced is the trimmer head (also referred to as the "bump head assembly"). This is the part where the string is released at the foot of the machine. This requires replacement more often then any other Ryobi part. The more hard surfaces your string comes into contact with the faster your Ryobi string trimmer will chew through the cutting line. Often trimmer lines are available to help alleviate the cost of replacing the entire string head assembly. You will have to match the replacement string line to the correct diameter and length that is appropriate for your trimmer. This information will be available in the owners manual that came with your machine. If you are like me and never save the paperwork that comes with the machine, you can also find this information by contacting Ryobi and providing them with your model and PPN number. To change the reel you should start slitting line by turning the on/off switch located on the shaft to the off position. Turn the machine so that the engine portion is resting on the ground and having the string head vertical. Hold the spinning portion of the head tightly to prevent it from spinning. Then you will want to unscrew the bump knob in a counterclockwise motion to remove it. Due to the continued spinning this will be on rather tightly so make sure to clean it first to get a firm grip. Now remove the bump knob and you will be able to slide the inner reel out of the head. Clean out any unused string and use a rag to clean out any dirt or grass inside of the head and the inner reel. Now measure and cut the string from the spool. If you are not quite sure about the length your owners manual will have the recommended length of line for your Ryobi trimmer. When you have cut your line to the correct length fold the line directly in half so that it is equal in length on both ends of the line. Now feed the ends of the line through theParallel Silde Gate Valve holes located on the top of the inner reel. Keep feeding the lines through these holes until you can pull the line through both of the sides equally making the loop inside as tight as possible. Now hold the reel and place your thumb in the center of the two lengths keeping them separated. On your inner reel there will be an arrow indicating the direction to wind the spool. As you are winding it is important to keep tension on the string to so that the line is wound as tightly as possible and in even rows that are not overlapping to prevent the line from knotting or coming undone during use. Now simply feed the remaining 5 inches into the holding slots on each side of the reel. Feed the ends through the outer eyelets on the head of the assembly and fit the inner reel back into the housing. Now simply hold the reel firmly and and pull the lines to detach them from the inner holding slots and reattach the tap button and tighten it clockwise. If this is to complicated or time consuming you can also purchase genuine Ryobi parts such as the spool, outer housing, bump head knob or even the entire assembly and replace it that way as well. If you can't find the appropriate head there are many universal heads that can attach to your Ryobi as a replacement as well. For helpful guides and video tutorials I recommend using eReplacementParts.com. forming machineIt is the most effective way to locate the correct Ryobi Parts and schematic breakdowns no matter the year or style of your trimmer. My name is Jake Madison and welcome to my article. máquina formadora de rolosI specialize in repairs and information involving a wideroll forming machine variety of tool part replacement and repair and wish to share my knowledge with you! Basically If it plugs into a wall or runs on gasoline I can help you find information on how to find genuine OEM Ryobi parts. Click for more repair information check out eReplacementParts.com. xzj