Guy64
Member
Yep, Greg, as well as both SD60s. You thinking of getting one?
There are a couple of minor tweaks I've done with all 3 locos. Since they do run on 19" curves once in a while, I had to file down the ends of the coupler shanks so the hi-rail couplers can pivot on the trucks, as well as with the trucks.
Also, there was an occasional derailing problem on 19" curves. The lead wheel would climb the outer rail. After breaking them in, I opened the trucks to see how they were designed, and found that a few of the coil springs on the 1st and 3rd axles were compressed too much. I stretched them so that all were the same length (leaving about 1/16" of the square bushings sticking up from the gear housing before reassembly), checked the contact wiper tension (often too much from the factory). No problems after these adjustments.
All that was done to the U25B as well.
There are a couple of minor tweaks I've done with all 3 locos. Since they do run on 19" curves once in a while, I had to file down the ends of the coupler shanks so the hi-rail couplers can pivot on the trucks, as well as with the trucks.
Also, there was an occasional derailing problem on 19" curves. The lead wheel would climb the outer rail. After breaking them in, I opened the trucks to see how they were designed, and found that a few of the coil springs on the 1st and 3rd axles were compressed too much. I stretched them so that all were the same length (leaving about 1/16" of the square bushings sticking up from the gear housing before reassembly), checked the contact wiper tension (often too much from the factory). No problems after these adjustments.
All that was done to the U25B as well.