As others have noted, I canâ??t imagine any reason why it would make a
difference. Multiple blade mowers require you to pay attention to that, for
obvious reasons. My old Troy Bilt had keyed hubs and a cogged belt driving
them, so that was easy (as long as you didnâ??t dork up replacing the cogged
belt). My current Exmark requires you to actually think about the blade
orientations when you install them:-)
â??
Tom Coradeschi
tjcora@icloud.com
> On 18 May 2021, at 5:52 PM, Karl Vacek <stearman809@gmail.com> wrote:
>
> Last time I sharpened my 21â?? walk-behind mower blade I thought of something
> thatâ??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. Itâ??s been off many times and thereâ??s no way to tell how
> it was mounted originally. The manual is silent on this.
>
> Power stroke shouldnâ??t matter, but maybe some dynamic issue one way or the
> other?
>
> Thanks!
> Karl
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