Fan sheave scraping the motor

billmayo · Post by **billmayo** » Tue Apr 19, 2011 9:58 am

jcraigie wrote:Go easy on the prying so you don't bend/break anything. I found that with the motor securely held to the bench pulling and wiggling on the sheave it came right off. prying just seemed to cock it to one side or the other and bind it.

Very true. I use 2 large flat blade screwdrivers, one on each of the fan Sheave raised hub area and againest the front motor cover at the motor shaft. Never pry on the outter rim of any of the Sheaves as they bend and can break. Many times, I have to Vise-Grip the end of the key to keep it from sliding at the same time and binding the removal of the fan sheave.

I remove the fan sheave set screw and use Kroil in the set screw hole for a while before trying to remove the fan sheave.

ddvann79 · Post by **ddvann79** » Tue Apr 19, 2011 10:49 am

dauphin80 wrote:I tried to pry the fan sheave, but it was pretty tight. Where is the set screws for the fan sheave?

If you follow the long key on the shaft to where it slides into the sheave, you will see a set screw in between the blades of the fan sheave. Shine a decent LED flashlight into that area and you'll see the head of the setscrew. There's just one. Once you get that loosened up, the fan sheave should slide freely.

dauphin80 · Post by **dauphin80** » Fri Apr 22, 2011 5:15 pm

Thanks guys!! Job is complete. The set screw on the fan sheeve was loose. Runs like a top now. There is actually a hole in the bottom of the headstock to tighted or loosen the set screw with your long allen wrench.

Happy Easter All!! He is Risen!!

JPG · Post by **JPG** » Fri Apr 22, 2011 5:30 pm

dauphin80 wrote:Thanks guys!! Job is complete. The set screw on the fan sheeve was loose. Runs like a top now. There is actually a hole in the bottom of the headstock to tighted or loosen the set screw with your long allen wrench.

Happy Easter All!! He is Risen!!

Right on that exhaust port louver!!;)

beeg · Post by **beeg** » Fri Apr 22, 2011 6:59 pm

The easiest way I know of the get the screeching sound to return is. To pull on the sheave and then LET GO so it snaps back. KNOT something ya really want to do, but that's what will cause it. Here's some info on the repair procedure.

[ATTACH]12767[/ATTACH]

JPG · Post by **JPG** » Fri Apr 22, 2011 7:49 pm

beeg wrote:The easiest way I know of the get the screeching sound to return is. To pull on the sheave and then LET GO so it snaps back. KNOT something ya really want to do, but that's what will cause it. Here's some info on the repair procedure.

[ATTACH]12767[/ATTACH]

It is not the function of the set screw to hold the fan sheave away from the housing. That is the job of the spacer. It is 13/32" long with a 5/8" bore. A 3/8" bushing and a thin flat washer would be a more permanent 'fix'.

Truth be told, the washer is probably adequate with the original spacer. Washer goes between the spacer and the sheave.