I recently acquired a 736 Berkshire. Looking at the rollers, it appears to have had little run time.
Upon testing, it ran but barely. Checking it out, the E unit was working fine, the brushes were new and the commutator was clean. Taking the motor out, there seemed to be too much play through the housing. Checking the shaft on the gear side, it looked like there was too much. So I added a washer to reduce it a bit. Retesting the loco, again it ran better, but as soon as I added a train, it didn't have enough "power" to pull anything but itself.
Any suggestions as to what might be the problem and a solution. This is a first for me after servicing many, many locos.
