(ET) Alltrax noise

[Dean Stuckmann <dstuckmann icloud com>]

Hi,
I installed an Alltrax in my E16 about 10 years ago and love it but 
recently, I've been hearing some moans and groans that sound like they are 
coming from the controller. This is typically heard when the loads 
increase around quarter throttle. At higher speeds, the noise is gone. 
Everything seems to work fine but it just said I don't recall ever hearing 
this before.

I had to replace the throttle pot about a month ago as the speed would 
jump around. It must've been worn out because I could tap on the lever arm 
while I was driving and the speed would change. Could those rapid changes 
in ohm readings have damaged the controller? But as I said, the tractor is 
working fine now with the exception of the noise. The wiring seems tight. 

I seem to recall a previous post regarding field voltage, and if that is 
out of whack, it can damage the controller. Does anyone know the procedure 
for checking field voltage?

Any thoughts is appreciated!

Thanks and have a great day.

Regards,

Dean Stuckmann
5432 County Road U
Newton, WI 53063-9624

920-901-2288


-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20251101/9cf8faf4/attachment.htm>