My parts book shows S-1594 on top and 4B6697 on bottom. I don't know which is which though.
Thanks for the response. I do not know what I was looking at before in the parts book but now I see that the 4B6997 goes on the bottom. Strange that the parts book lists a quantity of 9 for each. There are 6 of these guides with 4 bolt holes each.
Thanks for your response.
My parts books show 12 and 12. For the 9U.
The 5V industrial engine shows 10 & 10, probably because it shares mounting of some other component.