Rotary Mowers | 15 |
Cutting Unit Adjustments
Height of cut and attitude
Consistent blade height
Height of cut adjustment and attitude
The height of cut is usually set by the placement of spacers on the castor wheel shafts or with the height of the rollers on contour type cutting units. The effective height of cut can be checked on the turf. This can be accomplished by inserting a narrow ruler down into the turf.
Rotary cutting units are normally 1/8" - 1/4" lower at the front than in the back. This attitude or slope of the deck cuts down the horsepower requirement to turn the blades due to the blade only cutting on for the forward 180° of it’s rotation. If the deck has multi- blades and this attitude is too far down at the front the center will cut lower than the sides due to the center blade being farther forward.
The attitude can be checked by measuring from a flat surface up to the forward blade tip. Rotate the forward tip to the rear and take the measurement at the back. The difference in dimension is the attitude.
If the cutting unit has
Bent or warped blades. Bent blade spindles.
Height of cut adjustment different on each side. The attitude or slope of the cutting unit deck being incorrect.
Toro University Technical Training
