BlueBird S22H5DA - Manual (Page 15)

15
Blade versatility
Flail blade
Thatch is the dense layer of clippings, roots and
stems that forms between the soil and the base of
the grass. As thatch builds up, it prevents water,
air and fertilizer from being absorbed into the soil.
This causes shallow root development leading to
vulnerability to drought and frost. Excessive thatch
also creates an ideal environment for insects and
lawn diseases. Power-raking with flail blades
removes this thatch layer and restores your lawn
to good health. Flail blades offer the most
aggressive dethatching of all the blades offered.
Delta blade
Delta blades were created primarily for overseeding
existing lawn. They effectively incorporate grass
seed into the soil. This is an easy, reliable method
for rejuvenating poor lawns. The delta blade is also
useful as a vertical mower for cutting running stem
grasses and opening up the soil to oxygen, water,
nutrients and other chemicals. Delta blades are also
beneficial on slopes, terraces and in high clay
content soils where water runoff is a problem. The
blades should be set to penetrate the soil to a depth
of 1/8" to 1/4" with a maximum penetration of 1/2".
Spring tine
Ideal for the established lawn that is not in need of
a complete renovation but requires dethatching
(dry-spots, fungus, etc.). Spring tines are designed
to pluck dead grass and thatch out of the lawn
without tearing or damaging existing root structure.
With the flexible tines, the lawn is combed only 0.5
cm into the soil, so it cannot penetrate the root
structure. Spring tines provide less aggressive
dethatching than flail blades.
Setting blade height
The blades are raised and lowered using a depth
lever on the right side of the machine. Push in and
move lever to the correct height. Higher numbers
increase the blade depth.
CONTROLS
DEPTH LEVER
Check your seed bag for the manufacture’s
recommended depth of application.