Reply to "P&D GP9 Drive Problems"

riogrande491 posted:
Sorry about the thread drift.
Pete—which Maxxon motor and from where did you procure it?

Bob, it's a Maxon RE 25, model # 118751. I get them from The Motorman at micro-loco-motion.com Used and surplus coreless motors of variety!

Same length as a Pittman 85xx but narrower at 25mm dia. Also the shafts have to be sleeved out from 3mm to ~4mm for Weaver/P&D drive. I've bought 4 so far, all work great. The spec sheet is borderline for HO decoders, but I've tested with 25 x 1lb cars on level track to make sure I could get away with it. Probably about 1/4 of what you'll need to pull on the A&O mind you... My locos are weighted to get to wheel-slip before stalling and I don't have any overload issues so far. I do mount the decoders on a brass sheet heat-sink with some CPU thermal goop. Not sure if that's really necessary but I'm a bit of a worrier... crazy

HTH

1/22/1711:45 PM

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