I have a Raymond 5200 model stock picker that started to act up while traveling. the operator said out of nowhere the SP went into "crawl" mode. they had slow travel of only about 1 MPH. I found 1 burnt brush on the drive motor. So in good faith I changed out all brushes just to be safe. I also cleaned motor up from any carbon build up. I still have slow travel and all other functions are normal.

Any help would be appreciated, thanks.