As mentioned in a previous post, I have a large number of steamers out of service due to decoder issues. My Broadway Limited T1 was one of them, or at least that's what I thought. See, for the past few years, I can put this locomotive on the rails, give it some throttle and it just sits there and goes "chug-chug...chug-chug" and doesn't budge.
I tried everything I could decoder wise. I tried resetting by setting CV8 to 008 and no change. I tried the reset button on the decoder (something unique to BLI) and no change. I finally fired off an e-mail to BLI explaining the situation and that the locomotive was out of warranty.
A few days later, BLI responded by asking me what happened if I started the locomotive and muted the sound. Specifically they wanted to know if the motor hummed. I went ahead, muted the sound, gave the locomotive throttle and it moved!
Excited, I hooked up the Broadway Limited cars and sent her around the layout. She was running like a champ! But, I celebrated too soon. The locomotive made it from Cassandra to Altoona and then, it stopped and "chug-chug...chug-chug."
Discouraging for sure, but I got scientific. I muted the sound and put my ear to the locomotives boiler, The motor was indeed humming. The problem is mechanical and not the decoder. I suspected the problem could be a broken link in the drive shafts. I removed the shell and performed a visual check of the drive train and everything looked okay. I manually rotated the motor and all the gears turned properly.
I found after rotating the drive train manually, the locomotive would run. However, it inevitably locks up again. Now I know what the issue is, I'm just not sure how to fix it.