M0290-01Model 4900
4-2 Rev. 8/19
TM
Fertilizer
Solenoid
Centrifugal Pump
Low level sensor 2
Pressure
Relief Valve
3-Way Valve
Filters
Low level sensor 1
(back of tank)
Underneath Fertilizer Tank
Solenoid allows oil to go to centrifugal pump and turn. It is controlled from the bulk fill IPN on the planter.
Safety Relay (not shown) shuts off the pump when no fluid is sensed in the lower Low Level Sensor.
Low Level Sensor 1 is located on back of tank and signals in the cab when tank fluid level is low.
Low Level Sensor 2 is located in the tee fitting after 3-way valve and prevents pump from running when fluid level
in tank is too low.
Centrifugal Pump is hydraulically driven and pumps fertilizer to the manifold rail delivery system.
3-Way Valve has three positions for filling the tank. Use the “FILL” position to fill the tank. Use the “PUMP” position
while operating. “OFF” turns the tank off.
Pressure Relief Valve is a 75 psi relief valve that allows liquid to return to the tank when valves are
shut off on all rows.
Bleed-off Hose is used for preventing or eliminating air-locking the centrifugal pump.
Bleed-off Hose
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