ERR jerky start/stop

I recently installed a ERR Cruise Commander/Sound Commander in a Williams brass 4-6-2.

Everything functions well on my Legacy layout except that i cannot get the engine to start "gently'. At speed step 1, it jerks away at about 5smph but after that fine control works well. When I try to slowly decelerate, again, fine control is great until 5smph when the engine stops dead.

I tried all combinations of 100 speed steps, 32 speed steps, large motor and small motor - no improvement.

I have previously done several Cruise Commander (M) installations and they all start and stop smoothly so I'm hoping someone can help me correct this problem.

5/14/1310:53 AM

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gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

That sounds like the motor or gear train is binding, are you sure there is nothing mechanical in play here?

5/14/1310:55 AM

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NortonOGR Forum Member

Originally Posted by gunrunnerjohn:

That sounds like the motor or gear train is binding, are you sure there is nothing mechanical in play here?

+1. The few times my ERR cruise engines have not operated smoothly from the first blink on the Command base was when there was a mechanical issue. I would suggest trying to turn the motor shaft/flywheel by hand to see where it might be binding. Not sure which Williams Pacific you have but the early ones definitely had mechanical issues.

Pete

5/14/1311:06 AM

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SantaFeFanOGR Forum Member

You could also try setting the "motor size" selection to "1" (default is "2"). See the manual for the exact sequence to make this setting. Selecting "1" will apply less power at the initial speed steps, and even may require a few speed steps to produce motion.

5/14/1312:11 PM

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gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Jon, didn't he already do that with the small motor/large motor setting? He already tried that.

5/14/132:24 PM

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