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Hi Chad, Like to know more about modifying the circuit for the upgrade pair of reverse relays. Lots of juice and arching there. The connection do need to be sink wrapped due close proximity
to each other. I also modified, gently bent, the contacts to give maximum clearance and still allow for solid connection.
Would a diode on one side of one or both relays help? What size and connection would it be? Who might know about it or ideas of where I can search this out? Ordering up the Durrell from Batteries + today. Thanks for comments below, Hank From: bushman165s--- via Elec-trak [mailto:elec-trak cosmos phy tufts edu]
Lots of small things to consider with this kind of a problem. I would check voltages on the fuse block, specifically top and bottom of each fuse. Make sure the holder is making good
contact on both sides with minimal voltage drop. The fuse holders degrade over time and can be problematic for everything. Someone did mention checking all switches in the speed control and I'll second that. The Start switch gets a lot of use and contacts may be burnished. Failing reverse switches can be
culprits also. There was a factory update for the reverse relay on the early E-15 models. Don't have the docs in front of me, but i believe it added a diode for one side of the coil. Y ou might check
to make sure that has been done. I have a "CA" and pretty sure I added it to mine when I first started working on it due to a similar startup problem. Good Luck, Chad ------ Original message------ From:
Charlie Date:
Mon, May 8, 2017 5:42 PM To:
Elec-Trak; Cc:
Subject:(ET) E-15 clacks in forward, buzzes in reverse, doesn't move. Well, we replaced the drive motor's burned stud, but Pete's tractor still doesn't go. When shifted into forward, one of the big contactors clacks loudly over and over, but I can't tell which one of them is making the noise. When shifted into reverse, the open-frame reverse relay behind the dash flips back and forth like a hummingbird's wing, buzzing loudly. Does anybody know what might be the cause of this? The tractor's an E-15 model 26AE15DA. Thanks, --Charlie |