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

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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