ROLLOMAXIMUM XL
Page 21
A deeper setting will increase the level-
ling effect to that of a levelling board,
as a small bank of soil builds up in
front of the tines.
It is not designed to act as a dozer blade, but to break the soil down. As each tine
can move individually and thus yield to localised pressure, the crackerboard is
easy to use and requires little adjustment compared to a levelling board.
The crackerboard sections can run at different depths, which means it may be
necessary to zero the board by raising it to full height and then proceed to acti-
vate the outlet (marked:. green). The oil is thereby circulated in the series-
connected cylinders and any air in the oil is purged.
Adjusting harrowing depth
The harrow section (A) is parallel
mounted and is adjusted vertically up
and down by the double-acting cou-
pling (marked: white valve block no.
3).
.
The harrowing depth is adjusted in-
crementally by the "hydro clip" spacer
rings (B), which are mechanically
mounted by hand on the harrow sec-
tion's raise/lower cylinder on each
side. In total, there are two cylinders
on the machine, and the same and
equal number of spacer rings must be
fitted to each.
.
A
B
