Coleman A/C Motor Serviceable?
The Fan Motor in our Coleman Mach 15000 (Model 8335B8914 Serial 030218531) seized up tonight. I had a Zoom Spot Oiler onboard so up I went at 2313, no moon, Harbor Freight flashlignt. The oil wouldn't...
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UPDATE - And hopefully final. Or at least as final as things get on an RV. I had cleaned up the motor and the coils between trips. Then we started fridge and A/C while we packed for the current trip.
Motor stuck again. It seemed to have lost shaft end play, so I cleaned it up and removed a shim washer from the shaft.
Motor stucck again. We left on our current trip, but ordered the motor referenced above from Amazon, to be delivered to a local friend's home. Got it yesterday afternoon. Motor stuck again last evening, freed with WD-40, swapped it out this morning. It seems, or at least we hope, to be a little quieter.
The problem must be related to contamination of the sleeve bearing material. Every time I had it apart, the oil on the shaft at the inner end of one of the bushings was black. I found the bushings to be some kind of iron/steel, but they still have to be porous in some way to hold oil. I've heard of a material called "sintered iron" which I understand to be light weight so maybe that's it.
If I run into a bearing supply house, I'll probably get a couple bearings and felts and rework the motor as a spare. It didn't cost us a trip, and we didn't get stuck sitting in summer heat with no A/C.
I can usually fix what I take on, and don't buy all that many parts to do it. That includes a lot of various kinds of motors. But, as the Knights of Old knew:
Sometimes the Dragon Wins.
Thanks everybody!
Motor stuck again. It seemed to have lost shaft end play, so I cleaned it up and removed a shim washer from the shaft.
Motor stucck again. We left on our current trip, but ordered the motor referenced above from Amazon, to be delivered to a local friend's home. Got it yesterday afternoon. Motor stuck again last evening, freed with WD-40, swapped it out this morning. It seems, or at least we hope, to be a little quieter.
The problem must be related to contamination of the sleeve bearing material. Every time I had it apart, the oil on the shaft at the inner end of one of the bushings was black. I found the bushings to be some kind of iron/steel, but they still have to be porous in some way to hold oil. I've heard of a material called "sintered iron" which I understand to be light weight so maybe that's it.
If I run into a bearing supply house, I'll probably get a couple bearings and felts and rework the motor as a spare. It didn't cost us a trip, and we didn't get stuck sitting in summer heat with no A/C.
I can usually fix what I take on, and don't buy all that many parts to do it. That includes a lot of various kinds of motors. But, as the Knights of Old knew:
Sometimes the Dragon Wins.
Thanks everybody!
