Thread Number: 17247
Kirby G4 vacuum odd sounds
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Post# 185382   6/13/2012 at 11:34 (2,945 days old) by ncovert (Grove City, PA)        

When I move the g4 when it is turned off and the power drive is in neutral, it will make sort of a grinding sound. Why does it do that?

Post# 185387 , Reply# 1   6/13/2012 at 12:36 (2,944 days old) by cparman (Wylie, Texas)        
Kirby G4 vacuum odd sounds

There is a gear assembly in the transmission. With respect to the gear assembly, one gear has teeth on the outer and inner of itself (I call it the ring gear). There is another gear (shaft gear)that syncs up with the (for lack of another term) ring gear. With that said, I believe the two gears are not fully disengaged causing the noise you are hearing.

Post# 185396 , Reply# 2   6/13/2012 at 14:15 (2,944 days old) by ncovert (Grove City, PA)        

How do I fix it?

Post# 185406 , Reply# 3   6/13/2012 at 14:52 (2,944 days old) by cparman (Wylie, Texas)        
Kirby G4 vacuum odd sounds

It depends on your expertise regarding Kirby's. Anyway, dissemble the Kirby motor unit down to the transmission and see if the bracket Cam assembly is broken or just dysfunctional in some way. Here is a good video showing the actual bracket cam assembly.

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