[ARCHIVED THREAD] - HVAC help

Posted: 7/6/2016 9:36:35 AM EDT

I have a Goodman furnace and the blower fan has slid down the motor shaft and rubbed the bottom of the furnace has happened twice - I keep re aligning and tightning. Do I need to lock tight the shit out of this or am I missing something. It seems like a dumb design as it's a pressure fit with with a jam bolt.

Anyonone deal with this before- of course it's hotter then hell today ?

Posted: 7/6/2016 10:03:39 AM EDT

[#1]

never had one come loose. You should be tightening it pretty good not just snug

Is is a square end set bolt or an allen head?

Posted: 7/6/2016 10:17:35 AM EDT

[#2]

It's a square end

Posted: 7/6/2016 10:22:39 AM EDT

[#3]

Get a new set screw. Tighten, loosen, tighten, loosen then tighten the screw. This will make the cup point of the new set screw cut into the shaft and hold better.

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Posted: 7/6/2016 10:28:26 AM EDT

[#4]

There are knurl pointed set screws that did in. It is quite uncommon for the screws to come loose though. Usual issue is not being able to get them loose.

[ARCHIVED THREAD] - HVAC help

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[ARCHIVED THREAD] - HVAC help

[ARCHIVED THREAD] - HVAC help