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 is a genuine replacement part is designed for use with handheld trimmers. It is sourced from original manufacturer and it is sold individually. This split boom coupler includes metal coupler, knob and screws needed to fasten the upper shaft housing to the lower boom assembly. To complete this repair you would need a phillips head screwdriver.
The anti-rotation screw attaches to the lower handle clamp. This item is priced individually and is made out of metal. It is a genuine replacement part used in compatible tillers, trimmers, and blowers made by Ryobi, Troy-Bilt, MTD, Bolens, Yard Man, Yard Machines, and Cub Cadet. A torx screwdriver will be needed during the installation process. It will need to be replaced if it becomes stripped or broken.