Landoll 1230 Series, Operator'S Manual

Page: 52 / 64

4-16 DISC CUTTERS
4-16.1 For optimum performance, each disc cutter
should be in line with one of the shanks, ex-
cept the center shank. If necessary, adjust
the disc cutter spacing on the frame to ob-
tain correct alignment.
4-16.2 Disc cutter spring tension is increased or
decreased by turning the adjuster nut at the
top of each spring. Correct tension is at-
tained when the discs stay in the ground dur-
ing operation. Adjust all springs equally (See
Figure 4-25).
IMPORTANT
DO NOT FULLY TIGHTEN SPRINGS. COILS
MUST HAVE GAP, ALLOWING CUTTERS TO
PIVOT.
4-17 SPRING CUSHION CLAMPS (STANDARD SHANKS)
4-17.1 The standard shanks are equipped with
spring cushion clamps. Spring tension is set
at the factory and is not adjustable. The set-
ting is for optimum shank and frame protec-
tion (See Figure 4-26).
Operating Note: Maintain an operating depth so
the spring retaining bolt does not continually
protrude above the spring support.
4-18 AUTO-RESET CLAMPS (DEEP-TILL SHANKS)
4-18.1 The optional deep-till shanks are equipped
with auto-reset clamps. If an object is struck
and the shank trips while chiseling, the
shank automatically resets without stopping
forward movement.
4-18.2 Spring tension is set at the factory provid-
ing a trip force of 2800 lb.
a. Remove one washer from under the adjust-
ment nut to increase the force to 2900 lb (See
Figure 4-27).
b. Remove a second washer to increase the
force to a maximum of 3000 lb.
IMPORTANT
DO NOT EXCEED 3000 LB. TRIP FORCE TO
PREVENT SHANK DAMAGE.
4-16
Figure 4-25 Concave Disc Coulter Cutters
Figure 4-26 Spring Cushion Clamp (Std Shank)
Figure 4-27 Auto-Reset Clamp