Hydraulic System Service Self-Propelled Peanut Combine
Accumulator
The accumulator system is connected to the
header lift system between the lift cylinders
and solenoid control valve. The accumulator
is used to control header ground pressure
(float) when it is necessary to operate headers
in contact with the ground.
The accumulator volume is 0.7 L (0.19 U.S.
gal).
The accumulator is maintenance-
cannot be repaired if damaged.
Valve for Raising/Lowering
Header
(Proportional Valve)
• Oil at a flow of (52 L/min;
reaches valve (A) from the pump.
•
Pressure relief valve is set to 21000 kPa
(210 bar; 3045 psi).
• There are three internal valves:
o Neutral flow valve
o Raise (solenoid) valve
o Lower (solenoid) valve
•
When raising, the neutral flow valve
automatically closes.
• Entire oil flow returns via the filter in neutral
flow or when pressure relief valve is
triggered.
•
When lowering, the entire return flow
discharges from the cylinders and goes
directly to the tank.
272 09/04/15 MAN141
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