Landoll 1230 Series, Operator'S Manual

Page: 57 / 64

4-22 COULTER CUTTERS
4-22.1 Cutters with 22" diameter concave discs
are standard equipment. The discs cut ag-
gressively and mix residue with worked soil.
4-22.2 Rippled disc coulters 20" in diameter are
available for loosely working the soil with
minimal surface residue loss (See Figure
4-34) .
4-22.3 Disc coulter down pressure is adjusted by
tightening or loosening spring pressure. See
the ADJUSTMENTS Section.
4-23 LEVELING BAR
4-23.1 The leveling bar knocks down soil ridges,
providing a smoother field finish. Optional
straight, spike-type teeth can be added to the
bar if desired.
4-23.2 Four holes allow vertical adjustment (See
Figure 4-35). To change, remove the clip pin
and pivot pin, and relocate as desired.
4-23.3 To adjust down pressure, change the
chain length between the springs and chain
attachment bolt.
4-24 DEEP-TILL SHANKS
4-24.1 Deep-till shanks are available to replace
the standard shanks on the rear bar of rigid
frame implements only (See Figure 4-36) .
The shanks reduce compaction problems by
shattering the soil 4" (102 mm) below the
standard chisel shanks.
4-24.2 The shanks are equipped with automatic
reset clamps, allowing non-stop field opera-
tion.
4-21
Figure 4-34 Rippled Disc Coulter Cutters
Figure 4-35 Leveling Bar
Figure 4-36 Deep-Till Shank