lol I know, I saw it and I quicky got it lol I need it next year for a project for the car, I'm glad I got a storage unit now hah.
I knew it was going to be in the $300-400 range, the sun is in and out so I'm going to open it and adjust the motor to take the slack off of it and check to make sure things are dry and check the switch as well.
The belt looks a little loose I assume the motor can be moved up and down to take slack off of it?
Usually that is the case.
However, note that the belt should not be completely taught. There should be a little bit of slack. The rule of thumb that I use for fan/blower belts like this is 1/2" of movement when you push lightly on the belt with your finger mid-span.
A belt that is not tight enough will slip (often you can hear squealing especially at power-on). A belt that is too tight can put a heavier load on the motor and places more stress on the bearings, which can cause the bearings and belt to fail prematurely.
Maybe not. Some better fan motors have sealed ball bearings. If it doesn't have oil ports or grease fittings it is not meant to be lubed.
That looks like a 36" Air King if so I have one I dumpster dived, the reason it was chucked was the motor barely turned and having noting to lose I popped the motor open and found what ever was used as a lubricant had gelled into something that looked like yellow dog poop. There was some damage to the bushings but not a lot so I cleaned up the front and rear motor shafts wiped and oiled the bushings with some 30W I had on the shelf, I also oiled the felts but they where pretty ugly so I am not sure how much that helped, none the less that was a couple of summers back and the fan is still blowing.
Now that stated that motor is most definitely sealed, that is to say it has no external oil ports but that is controlled obsolescence and one way around that is a regular lubing of the bushings more so once the puppy mother seizes up.
On the back side of the motor is a little tab, as the motor slows down and the centrifugal switch slows down it moves backwards and touches the metal tab.. when the fan is on high you can hear it a little, not sure if normal.. when the video uploads you will hear and see it.