rubbing sound

dale1 · Post by **dale1** » Fri Apr 23, 2010 8:43 pm

the pulley on the end of the motor rubbs on the plate behind it. what is the problem and how do i fix it?

charlese · Post by **charlese** » Fri Apr 23, 2010 10:07 pm

I believe the spacer that fits on the motor shaft is somehow crushed or missing. That part is called a Sheave Spacer - (PN, 504205) - $1.45.If this is the case, it's an easy fix.

Wait for others to offer an opinion before jumping into repair. There may be different causes on different models. Removing the tension spring will take special methods.

billmayo · Post by **billmayo** » Sat Apr 24, 2010 12:58 am

charlese wrote:I believe the spacer that fits on the motor shaft is somehow crushed or missing. That part is called a Sheave Spacer - (PN, 504205) - $1.45.If this is the case, it's an easy fix.

Wait for others to offer an opinion before jumping into repair. There may be different causes on different models. Removing the tension spring will take special methods.

The original sheave spacer was quite thin. I normally find the fan sheave sheave set screw has loosen and allowed the thin spacer to cut into the back of the fan sheave hub. The new sheave spacer is much thicker and can be used even when the thin spacer has cut into the fan sheave hub. I use blue LocTite on the fan sheave set screw when installing the fan sheave.

The other thing that can cause this problem is releasing the floating sheave when removing the belt so the floating sheave snaps againest the fan sheave.