It's the other way around, in reverse. :) The E-20 traction motor
has the larger diameter twin groove pulley.
RJ
On 2/8/2023 10:46 AM, Chris Zach via Elec-trak wrote:
On 2/8/2023 9:41 AM, Larry Chace wrote:
HI, Chris. Sorry to hear about your E20 problems. I hope you have a
nice warm shop in which to work on it.
Thank you! I have a work shed, but it's pretty nice. The most annoying
problem is laying on the ground outside dropping the motor :-)
Regarding using an E15 motor -- is it compatible with the E20 motor?
Having both an E15 and an I-5, I should know, but it's more of a
vague feeling than actual knowledge.
It's similar, a bit smaller but I don't go to the edge with the E20 so
it should work fine while I either rewind or find another E20 motor.
The real problem would be the lack of a thermal cutout switch (I can
just bypass that with a jumper on the D sub connector) and the fact
that the E20's field wires go right into the motor from the D sub
while the E15 goes through a pair of spade connectors (easy to make a
quick adapter
They also have different rpms at full throttle, don't they?
I think they spin at the same speed but they do have different pulleys
on the motor shaft. The E20 has a smaller(?) pulley if I recall and of
course it has two sheaves. The E15 has a single sheave and belt.
I know I removed the pulley from the E20 when I rebuilt it, not sure
if I did that with the E15. One step might be to get the pulley off
the E15 and swap in the E20 one.
_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
Virus-free.www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>