Toro 09168SL Lawn Mower User Manual


 
Reel Mowers 11
Toro University Technical Training
Think of the reel mower cutting action like a
scissors; two blades coming together, with light
contact, to cut the grass. Without sharp reel and
bedknife edges and properly maintained, light
contact, the reel mower will not cut the grass and
give a good quality of cut.
This illustrates the scissors-like cutting action, as
viewed, from turf level, below the cutting unit. Note
how the helix shaped reel blades, move across the
bedknife, to cut the grass.
Clip
To understand reel cutting theory, you must
understand the concept of clip and the shear point.
A shear point is any single point of contact made
between the reel blade and bedknife.
Here we can see the distance between two
successive shear points, one factor that affects the
clip rate.