If you have lost field voltage, armature current will go through the
roof.With the armature resistors in the circuit, you essentially have a nine
hundred pound toaster.
Check and recheck the field control circuit. You will find your
gremlin there.
----- Original Message -----
From: "Richard Zachary"
To: "Elec-trak list"
Sent: Sunday, June 27, 2004 9:43 AM
Subject: (ET) E12 lost power
> Put in new solenoid coil at 1F just 3 weeks ago and everything seemed
> fine. Mowed weekend before last and everything was like new.
> Went to mow today and seemed fine for two seconds, it went about a
> foot and half, and then POW! everything stopped. 99.9% of power lost
> (very slight amount of movement possible both forward and back, but the
> power usage gauge was pinned to the highest point). Noticed an electric
> smell, and found a lot of heat up front. Three coils in front of the
> charger where RED and giving off loads of heat. One of the large wires
> coming off coil 2F was also hot.
> I tried the PTO switch and the mower deck by itself ran just fine,
> leading me to believe that the batteries are OK.
> Pulled the motor off and tested the resistance across the two main
> connection posts. The meter went to the top indicating a short across
> these posts.
> Had the motor redone with new bearings, brushes, rotor cut in April.
> Question is, could it be something other than the motor?
> Thanks in advance for any advise,
> Richard "Zack" Zachary
>
>
>
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> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>
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