Toro 09167SL User Manual

Page of 28
 Rotary Mowers 
 
Toro University Technical Training 
 
Cutting Action 
 
Cutting action
 
A rotary mower cuts grass by impacting the blade 
cutting edge against the grass blades at a very high 
velocity. This cutting action requires that the blade 
cutting edge is sharp and rotating at an adequate 
speed. 
 
Three types of cutting decks are shown here; a 
recycler deck, side discharge and contour deck. 
 
Cutting Blade Design
 
From left to right. Low sail, high sail, medium sail, 
recycler sail, and atomic mulching blade. Higher 
sails, generate higher lift within the cutting chamber. 
The type of blade utilized, depends on cutting deck 
design and turf conditions.