BEARING, BALL 90559833

Once I removed the orange motor cover, I determined that the ball bearing assembly had failed.

The most complicated part of the repair was (1) removing the outer race from the brush housing, which I did by disconnecting the wires from the brushes and then removing the 4 screws that hold the brush housing to the edger housing ... Read more so it was now a separate part (I used a nail set and gently tapped the old outer race out of the brush housing being careful not to break the plastic brush housing) and (2) removing the inner race from the motor shaft - which required borrowing a bearing puller. Note that the motor shaft DOES NOT have a bearing seat and you can drive the new bearing down too far on the shaft - so make sure that you put a mark on the shaft at the bottom of the old inner race before you pull the old inner race off of the shaft, so you know how far down on the shaft to install the new bearing assembly.

Once the inner and outer races were removed, I installed the new bearing onto the motor shaft using a socket and tapping on the top of the socket with a hammer to drive the bearing on the motor shaft. This was a trick from someone on the internet - if you don\'t have the appropriate press to install the bearing on the shaft. Select a socket size just larger than the shaft so it will slide over the shaft and with the edge of the socket that will rest just on the inner race of the bearing (and not the bearing seal between the inner and outer races). This is critical so you don\'t damage the bearing assembly when you hammer the socket to drive the bearing on the shaft - and only as far down on the shaft until the bottom of the new bearing inner race meets the mark on the shaft that you made before pulling the old inner race off of the motor shaft.

The brush housing slid down over the outer race pretty easily and did not need to be forced by tapping with a hammer or other tool. I reinstalled the 4 screws and reconnected the wires to the brushes and then reassembled the cover to the edger housing to complete the repair. the Edger works like new.

Disassembled the housing and removed the motor housing. Tapped the old bearing off of the motor shaft. I then replaced the brush holders with new as a maintenance item. I then replaced the blade and edge guide during the rest of the reassembly process. It all went well and since I cleaned everything up as I went, the edger now looks and r ... Read more uns as good as new. The whole process was facilitated by the exploded part view shown on the ereplacement parts website.

1) Took cover off of the motor compartment
2) Visually inspected the edger and found that the rear ball bearing had failed and broke apart
3) Ordered new ball bearing
4) Removed plastic bearing housing that also holds the motor brushes and took the brushes out
5) Used a bearing/pulley puller to remove what was left ... Read more of the old bearing from the motor shaft
6) Removed the other left over part of the old bearing from the plastic bearing housing
7) Placed new bearing on motor shaft and used socket and hammer to tap the bearing down the motor shaft - tap the inner ring of the bearing and never the outer ring or the bearing will be damaged
8) Once the new bearing was at the correct place on the shaft, I replaced the plastic bearing housing, and then put the brushes back in the housing. You will know that the bearing is at the correct spot on the shaft when the bearing fits into the bearing housing and the housing is flush with the motor housing
9) Screwed the outer cover back