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(ET) lift motor ground fault found
Ok, so I took apart the front lift motor, as it had gone to ground...
First, the thing was *FULL* of carbon crud. As in yuck. Cleared that
out, checked. Still fault.
After cleaning it up I took off the brush assembly. One of the brushes
was down to 25%, the other was quite simply gone. Replaced the missing
brush, checked the field windings. Oddly enough they had not gone to ground.
Checked the armature: Yup. Ground.
The armature smelled like baked wire. They all seem to, this one appears
to have had it's insulaion burned somewhere and simply went to ground.
I have some spare armatures from chrysler lift motors. Note: Even the
wrong side ones are handy to have: You have the right side gear
assembly, and the armatures/brushes interchange.
The third wire that goes back to the rear of the motor also was totally
baked. Bad design. So I driller a hole in the side of the motor, and
installed a new wire going out the side.
The motor is together again, no ground faults. I think I'm going to run
it at 12 volts instead of 18 from now on: I'm really sorry to say this
but I think running these motors at 18 volts just burns up the wiring
when they load up with something like the snowblower. Running them at 12
will be a bit slower, but do we really care *that* much?
PS: The wire size and windings are identical between an Elec-trak
original motor and a generic mopar one. Thus they are *NOT* specialy
wound or anything for 18 volts.