[Shop-talk] Mower blade orientaaion relative to piston

[Karl Vacek]

Last time I sharpened my 21" walk-behind mower blade I thought of something
that's never occurred to me, after using the same brand of mower for 25
years..

 

On a Snapper, the blade can actually go on any way onto the square adapter
keyed to the crankshaft.  The mounting point is square, no pins, no longer
side, nothing.

 

One way would be aligned with the cylinder at TDC/BDC, and the other way
would be across.  It's been off many times and there's no way to tell how it
was mounted originally.  The manual is silent on this.

 

Power stroke shouldn't matter, but maybe some dynamic issue one way or the
other?

 

Thanks!
Karl

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