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Post by keystonefarm on Dec 23, 2019 11:16:32 GMT -8
What are you all using as replacement motors? There is a used I1sa currently up for action on eBay that has electronic issues. The seller thinks it might be the motherboard, but isn’t sure. Before I would consider taking on another project, I want to make sure I can source a decent motor. I’m assuming I would have no choice but to get a replacement board from BLI. Do the motors damage the board or vice versa? I really want one of these locomotives, but I’ve never repaired a modern (with electronics & sound) steam locomotive. Thanks, Mark J. Reading, PA Mark when I modeled the 1956 era I had 12 of the BLI I-1's and 10 of the M-1a's. Only issue I ever had with the BLI steam locos's was the axle gear splitting. I sent only the geared axle back and for most of the time no charge and a new axle gear was installed by them, I also had a few J's H's and L's and some RDG T-1's The L's did have a decoder problem but that was taken care of. Call BLI they will give you a R/A (return authorization ) and send in what ever needs to be repaired or replaced. ---- Ken
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Post by craigz on Dec 24, 2019 19:20:08 GMT -8
What are you all using as replacement motors? There is a used I1sa currently up for action on eBay that has electronic issues. The seller thinks it might be the motherboard, but isn’t sure. Before I would consider taking on another project, I want to make sure I can source a decent motor. I’m assuming I would have no choice but to get a replacement board from BLI. Do the motors damage the board or vice versa? I really want one of these locomotives, but I’ve never repaired a modern (with electronics & sound) steam locomotive. Thanks, Mark J. Reading, PA I haven't replaced BLI motors; they seem to be of pretty good quality. On the steamers I also had the split main gear issues; I got the parts from BLI and replaced them myself on a couple of I1sa; have others still to do. What I HAVE replaced is the decoder...and used TCS decoders in those cases. If you open the model and remove ALL the BLI electronics, it's just another decoder install except for chasing down what wire on the engine/tender harness goes where. A multimeter is your friend here.
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Post by llxlocomotives on Dec 30, 2019 9:49:17 GMT -8
Having trouble understanding how the decoder kills the motor, unless a high voltage condition is experienced. Clearly the 6 volt test on two motors, show a large difference and a high current draw on one. .75 amp at six volts would be 1,8 amps at the full rectified voltage. Probably too high. This assumes that is a stall value. If these are no load operating current draws, then they really are a problem. It seems that several posters have experience a “hot” condition followed by a “short” alarm. The question is that the actual sequence, or was the heat cause by a short, which the booster picked up after things got really hot. It is probably the heat from the short that is killing the motor. The issue is where is this “short” coming from? Faulty electrical path on the mother board? Or in the decoder? Why?....
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