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Re: Wiper motor is worse!

To: "Brian Sanborn" <sanborn@net1plus.com>, Triumph List <triumphs@autox.team.net>
Subject: Re: Wiper motor is worse!
From: Tony Rhodes <ARhodes@compuserve.com>
Date: Sun, 14 Mar 1999 21:03:45 -0500
Message text written by "Brian Sanborn"
>If I understand what your describing.... you ran the motor with the end
>plate off.   This would cause the armature to get magnetically seized on
>the field coil.  The bearing in the end plate keeps the shaft lined up
>right in the middle of the field coils.....  that's what makes the motor
>go.  You may have jammed the gearbox with the shaft cocked.<

I though it might be as simple as that.....  I tried to avoid letting the
smoke out.

I tried to left and wiggle the motor shaft by hand, but it was magnetically
locked.
It turned easily with it off...  I doubt it is permanently damaged. 

The motor axle shaft is very wiggly with the end plate and housing off.  I
tried to spin
it by hand and in one direction it wanted to spin out of the gear box.  I
gave it a half
hearted tug and it came fully out!  Did I break it?  I put it back in and
spun it the right
way and it seemed to try to move the wipers....

I guess I have to remove the damn thing.

It looks like getting the 2 bolts from the footwell will be nasty.  Is it?

Do you know the circuit diagram  _inside_ the motor?  Does each individual
contact on the
axle shaft ground to the shaft itself?  I.E.  are the two brushes
electrically separate, and only one
conducts at low speed and both at high speed?

-Tony

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