06-26-2019, 11:17 PM
Thanks Mike
I removed the fans from the B unit this evening.
![[Image: 2019627193_DSCF8157.JPG]](http://www.railroad-line.com/forum/data/glen%20haasdyk/2019627193_DSCF8157.JPG)
I drilled them out from the inside, starting with the small bit in the twist drill and working my way up to a 7/16 bit. I enlarged the holes one size up at a time, using my miniature drill press until the bits got too large. Then I continued to increase the hole, until the final size.
![[Image: 20196271121_DSCF8156.JPG]](http://www.railroad-line.com/forum/data/glen%20haasdyk/20196271121_DSCF8156.JPG)
As you can see the new fans drop right into the hole. I've started to drill out the fans in the A unit, that should be done shortly.
I removed the fans from the B unit this evening.
I drilled them out from the inside, starting with the small bit in the twist drill and working my way up to a 7/16 bit. I enlarged the holes one size up at a time, using my miniature drill press until the bits got too large. Then I continued to increase the hole, until the final size.
As you can see the new fans drop right into the hole. I've started to drill out the fans in the A unit, that should be done shortly.