Landoll 7130 TO THE MAX, Руководство оператора

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3-13 COVER BOARD ADJUSTMENT
Before operating the harrow, make sure the
leveling boards are set correctly for the current
amount of residue and soil ridge heights.
3-13.1 Recommended Settings:
a. Connect cover-board hydraulic lines into a
secondary bank hydraulic valve (if positioned
in a primary bank, you may not be able to turn
the down pressure control knob.) Lock the hy-
draulic control lever into the down position so
the cover boards will maintain constant down
pressure across the width of the harrow - au-
tomatically compensating for ridges or de-
pressions in the terrain. If a cover board hits a
rock or obstruction, it will float up and return
to its down position.
b. The factory recommended setting would be
a pressure reading between 0 - 500 lbs. of
pressure for optimum performance
(See Fig-
ure 3-22) . If more leveling is desired, increase
the pressure setting. If bunching of residue is
observed, decrease the pressure setting.
IMPORTANT
WHEN PRESSURE SETTING IS ABOVE 200
LBS., IT IS NECESSARY TO RAISE THE HY-
DRAULIC BOARDS WHEN TURNING ON THE
ENDS. DAMAGE TO THE COVER BOARDS
COULD RESULT IF YOU FAIL TO FOLLOW
THIS PROCEDURE.
3-12
Figure 3-22 Pressure Gauge