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Message: <blockquote data-quote="Reptech" data-source="post: 559726" data-attributes="member: 38266">I'm pleased to report all seems well, however all these issues spurred me on to look a bit deeper. I scored an XLE fan on the bay partly so that I might have a replacement if ever it were needed and also to look in detail at one. It was quite interesting...The fan is very well constructed and comes apart very easily. The fan rotor blades are secured to the motor with a small single Allen type bolt and its nice to see that there is an access hole in one of the blades. The Allen bolt was tight and I put a drop of 'Plusgas' on it and also used a very small heat source to warm the area. No real drama though.[ATTACH=full]17305[/ATTACH]  The motor is secured to the housing via two screws and once the fan is loose on the shaft the motor just pulls out. The bearings are freed by loosing the two remaining bolts.This shows the rotor and you can see three spacers but significantly that horrible waxy green gunge. I'm sure that is dried lubricant as I noticed traces of that with mine oiling it in situ.[ATTACH=full]17306[/ATTACH]The bearings show the same gunk.[ATTACH=full]17307[/ATTACH]The bearings were cleaned as best as possible using Plusgas and a tiny brush. For oiling you can see in the bearing some whitish material and that is felt to hold lubricant. The bearings were placed in a low heat oven (about 70C) for 30 minutes or so and then oiled. This time around I used synthetic 0W20 motor oil which tbh seemed as suitable as anything.The cleaned bearing. I added quite a few drops of oil to the felt and bearing itself.[ATTACH=full]17308[/ATTACH]The bearings are self aligning meaning they swivel (albeit tightly) in their housings and so on reassembly make sure the rotor spins freely. A tip I read concerning shaded pole motors in general was to whack the motor shaft quite hard from the sides to help centre them. Use something soft to cushion the blow a little though.All back together again. I washed the fan and housing. When refitting the fan try and get it equally spaced so there is similar clearance between the blades on each face of the housing. When its in front of you it all makes sense and there are no hidden horrors pulling it apart.Ready for blast off. Does it work... dunno,, that's one for another day. How can it not though......[ATTACH=full]17309[/ATTACH]</blockquote>

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