|
Post by oldfashion on Aug 21, 2023 10:08:15 GMT
Today I had a closer look on the belt because it has to be replaced. Manufactured by Continental. Seams that Opel (General Motors) had contact to Frigidaire way before 1945. After war they produced the fridges in license in Germany.
|
|
|
Post by turbokinetic on Aug 21, 2023 12:13:19 GMT
Today I had a closer look on the belt because it has to be replaced. Manufactured by Continental. Seams that Opel (General Motors) had contact to Frigidaire way before 1945. After war they produced the fridges in license in Germany. View AttachmentView AttachmentFascinating. That looks like the 1921-1928 Opel logo, I would say.
|
|
|
Post by oldfashion on Aug 22, 2023 4:51:38 GMT
Motor-Service - the grease-battle just started ... www.flickr.com/photos/182104126@N04/albums/72177720310647667I tried to clean the stator windings with isoprop and brake cleaner cause they got some oil dust, but not very successfully. The impact of negleted service from decades is awefull. I tested the isolation before and after. Reading climbed from 18Meg to 30Meg after oven dry baking. Because of the still oily surface I decided not to soak the winding with some varnish (I would have tried thinned shellac). It is better to have them open for better cooling effekt. The rating plate states no operation above 40°C (104F), so I think it's getting pretty warm inside also under normal conditions. Do you know what material they used for the yarn filling of the bearing oiler? Wool or hemp?
|
|
|
Post by turbokinetic on Aug 22, 2023 15:24:58 GMT
Motor-Service - the grease-battle just started ... www.flickr.com/photos/182104126@N04/albums/72177720310647667I tried to clean the stator windings with isoprop and brake cleaner cause they got some oil dust, but not very successfully. The impact of negleted service from decades is awefull. I tested the isolation before and after. Reading climbed from 18Meg to 30Meg after oven dry baking. Because of the still oily surface I decided not to soak the winding with some varnish (I would have tried thinned shellac). It is better to have them open for better cooling effekt. The rating plate states no operation above 40°C (104F), so I think it's getting pretty warm inside also under normal conditions. Do you know what material they used for the yarn filling of the bearing oiler? Wool or hemp? Hi Ansgar. Very nice pictures! As for the motor rating plate, the 40°C marking is the temperature rise above ambient (at full load.) For instance if the motor is operated in a 30°C ambient temperature, the motor will warm up to about 70°C. That motor likely has NEMA class "A" insulation which is good for a maximum continuous winding temperature of 105°C. Therefore you could expect it to work safely in an ambient of about 65°C or about 149F. If they don't mark the insulation class, it's "A" by default. The most common class for modern motors is Class F which is good to 155°C. There is also a 180°C Class "H" which is for specialty uses. If your motor has been rewound in the last 30 years or so, it likely has Class F winding in it. If it's original, it will be Class A. As for the bearing oil wick, that is going to be cotton or wool. I would think hemp might have too many large fibers which could become lodged in the oil clearance of the bearing. I have replaced the original packing with 100% cotton yard bought from a crafts shop. That has worked well for me. My kitchen fridge is similar to yours. I re-packed its motor oil wicks about 5 years ago and it's still going strong.
|
|