Great Plains NP4000 40-foot Operator Manual - Manual (Page 67)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 63
2012-03-28 Table of Contents Index 407-776M
Row Implement Adjustments
Terra-Tine™ Adjustments
Note: All adjustments must be made with the implement
in the fully raised position.
Refer to Figure 46
Excess Wear Risk:
Check that the Terra-Tine™ Row Cleaner tines DO NOT touch
the coulter blade or any other attachments. Such contacts
cause excess wear to all parts involved. At least
1 ⁄
2
in. (13 mm)
clearance is recommended.
1. When the blade is out of the soil, adjust the lock
collar height to set the height of tine fingers flush with
the bottom of coulter blade.
2. Side-to-side alignment can be done by rotating the
shank mount around the vertical shaft and
retightening the square head set screw.
3. The factory setting for Terra-Tine™ height is a
distance of 5.4 in. (13.7 cm) from frame bottom to
top of Terra-Tine™ mount.
Height may be adjusted at the mount set screw, or at
the frame clamp. Changing arm angle
also
changes tine height.
4. The factory setting for arm angle is minimum
(pivot mount hole closest to Terra-Tine™ mount).
Terra-Tine™ Down Force
Refer to Figure 47
A series of three holes in the spring adjuster
and pivot
mount plate provide five combinations for different
levels of spring tension. The following table shows the
down-force levels available.
Note: Changing force also changes height.
Note: All adjustments must be made with the implement
in the fully raised position.
Note: The factory setting is an initial setting. Vary it as
needed for your field condition and application
needs.
Figure 46
Terra-Tine™ Height
31658
1
1
Figure 47
Terra-Tine™ Force
13156
Position 1:
Minimum
Force
Position 5:
Maximum
Force
1
2
1
1
2
Terra-Tine™ Spring Tension (per Tine Disc)
Position Newtons Pounds
1 53 12
2 76 17
3 98 22
4 120 27
5 138 31
31875