Toro 09167SL Lawn Mower User Manual


 
Rotary Mowers 7
Toro University Technical Training
Rotary mower clip
To understand rotary cutting theory you must
understand the concept of clip.
Clip can be defined as the forward distance traveled
by the cutting unit during one revolution of the blade.
This distance is divided by the number of blade tips
to arrive at the clip dimension. The dotted lines
represent the cut path by the previous blade tip.
Although the blade cutting edge may be 3" - 4" long
the very tip is the primary contact point with the grass
blades on each pass.
The remaining portion of the cutting edge will tend to
cut off the stragglers from the previous blade pass.
The blade tips are normally lower than the rest of the
blade to avoid any drag on the turf absorbing rotating
horsepower and damaging the grass.
Factors which affect clip:
Blade speed
Ground speed
Requirements for
acceptable performance
Three basic requirements for acceptable
performance:
The blade must be straight with sharp cutting edges.
The blade must have the proper attitude in relation to
the ground surface.
The blade must rotate at the proper speed with an
accommodating ground speed to get an acceptable
clip.