Re: (ET) Lift motors

["RJ Kanary" <rjkanary nauticom net>]

 If they are the Delco® lift motors, there is a bi- metallic circuit
breaker, contained in the brush holder end of the motor. Time and fatigue
can take its toll, and cause the breaker to open too soon.Repeated cycling
will also cause enough heat build up to cause tripping, as will holding the
switch on with the motor stalled. Last, but not least, shortened brushes in
the motor will cause this concern. As far as I have been able to determine,
individual parts for service are not available.


RJ Kanary @ Bandi Bros. Inc.
Member TRNi  Since 1998
ASE® Certified Master Auto Technician
Member Tech Line Associates Since 1987
rjkanary nauticom net

----- Original Message -----
From: "Jim Coate" <jbc coate org>
To: "Elec-Trak List" <elec-trak cosmos phy tufts edu>
Sent: Sunday, September 30, 2001 08:44
Subject: (ET) Lift motors


> I've been having some problems with my lift motors, both front and rear.
> They will work for a bit then give out, but by waiting a while (few
> minutes to few hours) will always start working again. Is this a common
> problem?
>
> I've heard these are really 12 Volt automotive power window or wiper
> motors being pushed to 18V and 24 Volts repectively... is there some
> sort of internal thermal overload that is tripping? Or should I be
> looking for something actually broken?
>
> And has anyone built a better lift system use bigger 36 volt motors that
> can take abuse? I have a tiller on back and a plow blade on front... the
> system is pretty good for breaking up the ground and leveling things
> off, but there is a lot of demand on the lifts.
>
> _________
> Jim Coate
> 1992 Chevy S-10
> 1970s Elec-Trak E20
> http://www.eeevee.com
>