M0258-01Model 3500
3-8 9/14
TM
Row Unit Operation
FIELD OPERATION
NOTE: Adjust down pressure with planter lowered and row openers in ground for most accurate adjustment.
Pressure can be adjusted from tractor using control console, or at planter using manual control valves on
compressor assembly.
Control console
ADJUST DOWN PRESSURE FROM CAB
Push toggle switch left to increase or right to decrease pressure.
ADJUST DOWN PRESSURE AT PLANTER
Push and hold decrease or increase button on compressor assembly to decrease or increase pressure.
NOTE: Value on the air pressure gauge is NOT down pressure force. Multiply air pressure (psi) by four (4) to
calculate down pressure.
LOCK UP PUSH ROW UNITS EQUIPPED WITH PNEUMATIC DOWN PRESSURE SPRINGS
1. Press and hold button on solenoid until pressure gauge reads 5 PSI.
2. Lock up units. See “Interplant Push Unit Lockup” for instructions.
3. Turn shutoff valve handle perpendicular to valve body to turn off push row unit air supply.
Pressure gauge
Increase
pressure
Decrease
pressure
Shutoff valve
Air compressor assembly controls
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