13
OPERATION
STEP 2: SETTING THE DEPTH
Planter mounted 4000 Nutrient Pro assemblies are only adjustable by the depth control pin. If 4000 Nutrient Pro
assemblies are to be used for side dressing or pre-plant, raise or lower the coulter assembly/shank at the
toolbar as needed to achieve the desired depth. After setting the depth, tighten the horizontal 5/8 X 2” bolt to
clamp the shank in place.
Gauge Wheel Depth Adjustments
o
18” Blade – Position 1 = 1 ½”, Position 2 = 2 3/8”, Position 3 = 3 ¼”, Position 4 = 4 1/8”, Position 5 = 5”
o
20” Blade – Position 1 = 2 ½”, Position 2 = 3 3/8”, Position 3 = 4 ¼”, Position 4 = 5 1/8”, Position 5 = 6”
NOTE:
If usin
g a 13” gauge wheel, gauge wheel depth position 4 and 5 are NOT to be used.
STEP 3: ADJUST KNIFE TO BLADE CONTACT
Adjust the knife on each opener so the blade will turn by hand with slight resistance, but will not coast or freewheel. In
loose soil the knife adjustment is critical. The rubber shims are used to help set the knife position to the blade. The
correct knife setting will have the contacting edge of the knife in full contact with the blade or no more than .125” (1/8”)
gap at the top. The bottom of the knife contacting the blade is critical to help eliminate issues. After the knife is in the
correct position, tighten each nut the same amount of rotations. If adjustment is not maintained, soil or residue may
wedge between knife and blade, resulting in the blade not turning. Because of blade run out, rotate the blade one full
revolution after adjustment. Re-adjust knife as needed. Never strike the knife with a heavy object or damage may
occur.
The same knife is used on both 18” & 20” coulter assemblies & should be mounted so the bottom of the knife is
flush with the blade bevel.
