Wednesday, August 31, 2011
The shrink wrap would not shrink well enough and stay put near the body of the motor. I took the motor apart. Carefully. I did not take the brushes out first, you should. I pulled the motor out of the housing and gently pulled the wires through the hole in the motor housing. That freed up the motor and allowed me to inspect the commutator .
The next step was repairing the wiring. First I unwound the paper wrapper and cleaned the old wire gently with some 70% isopropyl rubbing alcohol. Then I made my mechanical connection and soldered it
Next I put some shrink wrap over this connection.
Then I put some larger diameter shrink wrap over the whole thing on down to the body of the motor.
Next I tried to crimp on a connector. I am just not strong enough to crimp the plastic coated connectors. I tried, but it didn't stay. So I eased the red plastic insulator back from the connector and soldered it to the wire.
I was able to slip these wires back through the hole in the motor housing but I was unable to get the motor housing back together. I was lacking about an eighth of an inch. I wondered if it was the "underwriter" knot so I took that apart and tried again. No go. I fiddled and fiddled, then I understood that there was something in the way where the shaft of the motor entered its housing. I looked in there and saw the oil wick. For the life of me, I could not get it out. I tried tweezers, a dental pick, tweezers again. I looked at the motor housing itself and saw a cap. I wondered if that should come off.
I finally was able to get the housing screws started and decided to just try to tighten them in hopes it would compress that oil wick. As I was tightening the screws, the cap popped off in my hand and spit out the felt oil wick.