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Old 07-14-2020, 11:08 AM   #1 (permalink)
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Question Stainz troubleshooting

I just bought a well worn Stainz 0-4-0 and went to test it. Using a Bachman 3amp variable power supply, the voltage goes up, the amps stay at zero.
I even hooked up the power by a set of test leads to the skates. No joy.
I've used this power supply on LGB locos in the past and there was no problem.

If I remember my basic electricity, zero amps means that the motor is not getting connected to the power.

So, before I tear down the loco, are there any tips and tricks.
And any tear down advice? I should be able to find a parts diagram somewhere on the net.

Thanks in advance
WES
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Old 07-14-2020, 04:08 PM   #2 (permalink)
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Unhappy Stainz troubleshooting

After the teardown, found the motor turns stiffly and does not run when power applied direct to the two brass power pickups (that go direct to brushes) - now looking for an upgrade motor or replacement.
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Old 07-15-2020, 07:41 AM   #3 (permalink)
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LGB 62201 short shaft motor. Trainli.com, just under $60 plus shipping.
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Old 07-16-2020, 03:03 PM   #4 (permalink)
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Cool Stainz troubleshooting

Never leaving well enough alone, I kept digging.

Finally found the culprit: the brush spring on the 'red' side has no tension, so the brush does not touch the commutator.

Last edited by gizmorama; 07-16-2020 at 05:08 PM.
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