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Set the center section of coulters first. Spacers are included with the toolbar cylinders. Add or remove spacers until the center sec-
tion is positioned at the appropriate depth. Lower the unit until the lift cylinders bottom out on the stroke control spacers. Add or remove
stroke control spacers until the center toolbar section reaches desired application depth. For best results, move forward while lowering
the toolbar.
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After the center toolbar is set with the cylinder spacers, adjust the wing gauge wheel setting until the wings are level with the base
section and the entire toolbar is flat and even. Once the toolbar is set and leveled, further adjustment is typically not necessary.
Toolbar Down Pressure Relief Valve and Gauge
The down pressure relief valve provides adjustable hydraulic pressure to force the
coulters on the wings into the ground while allowing the wing to flex up and down as
needed to follow the contour of the ground.
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Turn clockwise to increase down pressure.
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Turn counter clockwise to decrease down
pressure.
IMPORTANT - It is VERY IMPORTANT NOT
TO EXCEED 1,350 psi of pressure on the down
pressure gauge. Excessive pressure can cause
premature wear on wing pivots and gauge wheels.
The standard pump for your NitroGro applicator is the Ace FMC-155-HYD-206 with PWM control. The
maximum hydraulic fluid input for this pump is 7 gallons per minute.
IMPORTANT - Do not exceed 7 gallons per minute hydraulic fluid input when using the Ace FMC-155-
HYD-206 pump. Refer to the pump's operating manual to regulate the hydraulic flow to the pump.
WARNING- Failure to regulate oil flow will cause motor failure.
The hydraulic pump is located below the tank and near the tank outlet to prevent cavitation and
provide faster pump priming.
Attach the pump hydraulic hoses to the tractor so the pump operates in the lower/retract
position. The pump can then be turned off in the forward "float" position. Turning the pump off
in "float" instead of "neutral" allows the hydraulic system pressure to equalize and prevents the
occurrence of damaging pressure spikes.
Connect the return line to a low pressure return port, if available. The low pressure return port
routes oil directly to the reservoir, minimizing return line pressure. Low return line pressure
extends the motor seal life and increases operating efficiency.
Turn the hydraulic flow of the tractor all the way down before you put the hydraulic fertilizer
pump into use. The applicator pump only requires 7 GPM of hydraulic flow to make 120 GPM of
fertilizer flow. If you don't turn down the tractor hydraulic flow to the pump, damage will occur.
(See Set-Up Instructions in the pump manual.)
The PWM valve controls the hydraulic flow to the pump, which creates a variable rate pump.
With the PWM valve, the pump controls the rate of fertilizer flow.
WARNING - Not a suitable pump for flammable liquids.
10
Adjusting the Field Depth
Hydraulic PWM Pump
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