CS720R (409057386) Ryobi Trimmer - Overview

This genuine bump head knob assembly, sometimes known simply as the bump head, is black and approximately 2 inches long. Sold individually, this plastic part releases the cutting line. Over time, this part may break due to wear, and you will know it is broken because it will completely stop functioning. A troubleshooting tip is to tap t...Read morehe part on theg round to see if the cutting line advances. This is an easy repair to make, and does not require any tools. You will need to look for the bump head attachment point on the bottom of the cutting head assembly.

This spool is for line trimmers. Spool houses the cutting line and fits inside the cutting head to cut grass and weeds. Wear work gloves to protect your hands when installing this part.

Genuine OEM replacement part, this item is sold individually. This spring is used on all of the trimmers listed below. It is installed between the inner reel and the outer spool assembly. Its purpose is to keep pressure on the Bump Head Knob Assembly.

This retainer clip is a metal piece used to secure components and provide stability inside trimmers. It is an authentic manufacturer replacement clip which is positioned on the trimmer hub and designed to hold the spool in position during use. If the retaining clip is worn down or broken, the trimmer head and outer spool will come loose a...Read morend may slip off the shaft, the trimmer line will tangle and jam, and the trimmer may experience reduced power. You will need a small screwdriver and set of pliers to remove the faulty clip, and a retainer ring tool to lock the new one in position. This part is sold individually.

Genuine OEM replacement part, this item is sold individually. This Guard is used on the trimmer models shown below. Its purpose is to keep debris from hitting the user. It also will keep the debris from hitting other people and objects when the trimmer is in use. The cutting line blade is included with this part, it keeps the cutting line at the correct length.

This part is an OEM from the Ryobi manufacturer. The lower flexible drive shaft (24 3/4") is made of metal, and is compatible with multiple tools and machines. This part is used to operate the device cutting head, and is regularly secured in the draft shaft housing. It is recommended to refer to specific manual and diagrams for repair ins...Read moretructions. This part is sold individually. A screwdriver is often helpful in the replacement.

This is an original replacement part manufactured for use with trimmers. The metal blade assembly attaches to the trimmer guard with two nuts and bolts, the hardware will come with the blade assembly. The blade assembly is used to trim excess line, the blade assembly is sold individually.

It is a genuine manufacturer-sourced replacement part that is supplied for use with handheld trimmers and tillers. This is the special clamp assembly which is used to secure the gearbox assembly to the outer boom housing. It is a high-quality component which is made of durable metal and it is sold individually.

This is an authentic replacement part manufactured for use with trimmers. This plastic outer spool assembly is used to house the spool of bump style trimmer heads. The outer spool assembly comes with the metal eyelets, and a retainer. The outer spool assembly is sold individually, please see model diagram for associative parts. Recommend...Read moreed additional parts: • Spring, part number: 791-610317B • Inner Reel, part number: 753-1155 • Bump Head Knob Assembly, part number: 791-153066B

This is an OEM part sourced directly from the manufacturer. The bushing housing assembly with shaft is designed for use in trimmers from Ryobi, Troy-Bilt, Yard Man, MTD, and Yard Machines. This part is made of metal, and is used to connect the trimmer head to the lower boom shaft. You will require a screwdriver when replacing this part. This item is sold individually.