Spindle Shaft Assembly 90522788SV

1. Remove the guard - three screws.
2. Remove the sleeve that allows the head to rotate. This should have been easy but it was not obvious that there was a screwdriver notch to release it and allow it to slide away from the head.
3. Undo several screws to part the two halves of the cover. If this is done carefully, the rest of ... Read more the job is easy. If not, the large internal spring gets out of position and it\'s not obvious where it goes.
4. Partially remove the motor and shaft assembly (leave the motor wires intact).
5. Remove the snap ring to get the old shaft out. Be careful to get three parts off of the old shaft -- one of the washers is hard to see.
6. Put the shaft into the assembly with the motor using the parts from the old shaft.
7. Reassemble the two halves of the cover. Put the guard back on. Slide the sleeve back over the end of the cover.

Unscrewed and opened the lower housing containing the motor and sprocket drive wheel. Detached the sprocket and shaft assembly and spool, and replaced with the new one. Fitted into position and reattached all screws.

Opened trimmer head. Removed the spindle. Replaced spindle. Reassembled head.

Removed screws that held shield on head and removed shield. Removed screws that held the two sides of the cutter head assembly together and pulled apart. Kind of hard to pull halves out of head rotating ring. R&R spindle shaft assembly using old top bearing, washer and snap ring. Reverse procedure to assemble cutter head being careful to ... Read more get the head rotating spring in it\'s proper place inside the head! A little tricky getting everything back inside the two halves of the cutter head in their proper places! Pay attention to how the two head halves come out and go back into the head rotation ring!!

took out all the screws, and replaced the part, put back together and tested, worked a lot quieter used it the next day trimming around the house garage and shed