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#1
08-21-2013, 10:00 AM
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1811 PTO field melted
If you guys remember last fall, I was having some issues with many things, as this Cub apparently wasn't quite the find I thought it was.
To make a long story short, I had a lawn cart full of some rock and sod, backing it to the edge of my ditch the lawn cart went too far over dragging the 1811 backwards with it. The ditch was only deep enough that the lawn cart hit bottom with the Cub's front wheels on the top lip. After finally getting it out I had broken the rear seal, the automatic reliefs were shot, and on and on... Used this as a perfect excuse to get some additional parts to repair everything that I knew needed to be done. However the PTO was not touched as it was working perfectly. Not so any more. I took it out to mow and about 8-10 minutes in she started smoking. Not my typical burning oil smell, and parked it and found a mouse half cooked around the heat shield and the head. Figuring this was what was grilling, I took it out for the rest of the day fine. The next time I took it out to mow it did the same thing, but the PTO quit on me. Tore it apart to get to the PTO and the potting on the field had melted, letting the windings get pulled into the directly keyed PTO disk. Needless to say this field was shot. I found myself a new field, and installed everything, even tipple checking the air gap as I thought that this could have been the culprit (I knew I hadn't checked this at all...) figuring that an excessive air gap could have been the source of the heat that caused the potting to melt. New field lasted about 2 minutes before it started smoking and I shut it down... The new field is drawing just a hair over 4 amps when engaged, so that shouldn't be the cause of the heat. Any ideas as to what else I need to look at? The new field can still be useable if I can find the melting point of the potting to push the field back into the housing and reseal it as it didn't wear through any wires in the coil. 
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
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