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Re: (ET) Need a lot of detalied how info
- Subject: Re: (ET) Need a lot of detalied how info
- From: Ken Olum <kdo cosmos phy tufts edu>
- Date: Wed, 23 Apr 2003 16:18:41 -0400
- Delivery-date: Wed, 23 Apr 2003 16:18:57 -0400
- Envelope-to: elec-trak-outgoing cosmos phy tufts edu
- In-reply-to: <4.2.2.20030421230823.00afd180@mail.gemair.com> (message from Paul and Sue Abendroth on Mon, 21 Apr 2003 23:17:40 -0400)
- Sender: owner-elec-trak cosmos phy tufts edu
From: Paul and Sue Abendroth <pabendro gemair com>
Date: Mon, 21 Apr 2003 23:17:40 -0400
At 09:34 PM 4/21/03 , Roy Vanderhoef wrote:
>The first problem is for some reason the ET started pegging the usage
>meter in the upper speed ranges. All is fine in the first couple
>ranges. If I remember correctly it was some sort of resistor bank or
>something like that that you guy/gals said was most likely the problem.
>So where do I start, What do I check, where is it located, and how do I
>test it, and replace it. Where do I get the replacement parts. Etc
Most likely are the 2 resistors - the flat silver colored strips ahead
of
the battery charger, mounted to the bracket the timer is on. When they
fail, you can usually see the break. The posts they are mounted to may
be
loose. The switches are the last micro-switches on the throttle
control,
but less likely to be the problem.
That doesn't seem right. I thought the metallic resistors were the
ones that decrease the armature current and are invoked in the low
speeds. The field weakening resistors, which would cause the current
problem if open, are on some other card.
Ken