Hitch Adjustment - Landoll 6230 Series Operator's Manual

4-12 HITCH ADJUSTMENT

4-12.1 It is important for the disc to maintain a
proper draft line with the tractor to do a level
job of discing. The draft line will vary de-
pending on soil conditions and tractor
drawbar height. The disc is equipped with an
adjustable hitch to help insure a proper draft
line with the tractor.
4-12.2 Generally tractor drawbars greater than
20" tall will require the hitch to be in the up-
per position. Drawbars 20" and below should
be in the lower position. Operating conditions
may also influence the hitch adjustment.
4-12.3 A hitch adjustment that is too high will
leave a center furrow, as the front of the disc
will operate too deep. A low hitch adjustment
can cause a center ridge, regardless of lev-
eler setting.
IMPORTANT
EXCESSIVE DOWN PRESSURE WITH GAUGE
WHEELS CAN ALSO CREATE A CENTER
RIDGE REGARDLESS OF HITCH AND LEV-
ELER SETTINGS.
4-12.4 To adjust the hitch (See Figure 4-13):
a. Lower the disc to the ground.
b. Adjust the leveler screw (manual or hydrau-
lic) in or out until the pressure is relieved on
the leveling system (See Sections 4-9 and
4-10).
c. Remove the 1-8 X 4 hex head cap screw
and hardware from the leveler ball joint link at
the center rear of the hitch weldment.
d. Loosen, but do not remove the bolts that
pass through the ball joint connections at the
outer rear connections of the hitch.
e. Remove the bolt through the two hole clamp
plates (above or below) the rear connections
of the hitch ball joint.
f. Vertically raise or lower the hitch to the de-
sired operating position.
g. Reinstall the bolt through the two-hole
clamp plates to secure the hitch in the new
position.
LEVELER BALL
JOINT LINK
1-8 X 4 HEX
HEAD CAP
SCREW AND
HARDWARE
HITCH WELDMENT
6230hitchadj
Figure 4-13 Hitch Adjustment
h. Retighten all hitch bolts.
i. Install the bolt in the leveler ball joint link in
the new position at the rear of the hitch and
retighten.
IMPORTANT
WHEN THE HITCH IS IN THE LOWER POSI-
TION, THE LEVELER BALL JOINT LINK WILL
BE IN THE UPPER MOUNTING HOLE AT THE
REAR OF THE TONGUE. IF THE HITCH IS IN
THE RAISED MOUNTING POSITION, THE
LEVELER BALL JOINT LINK WILL BE IN THE
LOWER HOLE AT THE REAR OF THE
TONGUE.
4-13