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Re: (ET) Running but still odd things, tiny screw head on the thermal breaker, left or right?



              I personally would not kludge anything that is supposed to protect an over forty year old device that is irreplaceable. The spring steel fatigues and corrodes resulting in unpredictable performance. A Google search would be a good place to start.:)


RJ

On 5/20/2019 9:55 AM, Hank Ralston wrote:
Finally got my ET15 to go in all speeds forward and back by pushing in all the shifter micro switch and tighten them down a bit more than they were.
Also tightened some of the clips on the card, just a little at a time, and put some new fasteners on wire group 49 & 11 that go to the forward and back relays.  

Still a bit quirky, but at almost 50 years old guess we all were, even with new boards and a new relay.

My problem now mirrors yours.  The freak 'n thermal switch seems to be too sensitive.  I'm very safety minded, (RIT engineering student, commercial Underwriter & Insurance agent),  but I'm tempted to by bass it like I did on the many years ago for the snow thrower's circuit breaker.

II see that there is a tiny screw head on the thermal breaker.  Can it be adjusted?  It so, turn to the left or the right?

Thanks,
Hank
Ralston Agency, Inc.
-----Original Message-----
From: Chris Zach [mailto:cz alembic crystel com] 
Sent: Monday, May 20, 2019 8:01 AM
To: Elec-trak list <elec-trak cosmos phy tufts edu>
Subject: (ET) Running but still odd things.

Well, I finally finished refurbishing the deck with a new shell. This one has baffles, which means I need to think a bit before putting in my stiffener bar over the discharge chute (which is currently only supported by the little blanking plate). That part of the deck takes a lot of stress, need to think about it a bit.

Fired it up, lot of vibration. Took the blades off, spent some time with a cheap-o balancer (the Home Depot one doesn't really fit the holes) and took some metal off one side on each blade. Now there is a lot less vibration, but not quite perfect. Good enough.

New problem is that the tractor is going into speed 4 right off the bat even though all contactors are *not* closed. Very weird. In reverse it feels like the field is not coming on, also weird as the motor heats up quickly and trips the thermal switch on the motor housing.

I'm not sure if there is a field problem or a short in the main wiring or something else. It's never dull, I'll check tomorrow when the weather is down to the 70's.

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