Centrifugal Clutch operation

[ipbr21054]

The recoil spring snapped on my Titan strimmer.
Ive purchased another spring unit & fitted it.

My question is about the centrifugal clutch operation before i continue putting it back together.

With the clutch spring fitted etc & the first output shaft installed when i softly pull the cord i dont see or feel the inner cabel spin as it passes out of the end of the shaft.

So is that supposed to happen meaning when the unit actually starts the clutch spring system opens up grabbing the wall of its casing thus then making it spin ?

The clutch part is like to small brake shoes attached with springs,when it spins fast maybe once started the parts expaned & the brake shoes then grab the inner wall which then makes the shaft spin ?

 

[Burnerman]

These centrifugal clutches need to spin at a pretty high speed to make them engage with the outer drum.
There is no mechanical connection between the motor and the end appliance without the clutch working.
At first sight the springs are remarkably powerful, but so is centrifugal force. Don't expect to see any friction lining material on the shoes.
The last sentence of your post is correct.
Keep the inner drum surface clean and grease free, if there's a small bearing at the end of the clutch drum then lubricate that.
See that the machine can idle slow enough so the appliance, whatever that may be, stops.
John

 

[ipbr21054]

So am i correct in that pulling it softly will not see the inner shaft cable spin.

It will only spin once started & springs fly out and grab the case.

Correct ?

 

[Burnerman]

That is correct, the engine must be running above tickover speed.
John

 

[ipbr21054]

Great.
I can now continue to put it back together.