New Holland CX720 Repair Manual page 2473

Multifunction valve - Static description (C.20.F.11 - C.30.A.20)
The multi function valve has four functions, and three different valves.
The valves with in the multi function valve are as follows:
A Charge Pressure Check Valve to keep the system full of oil.
•
A Pressure Limiter Valve to make the work pressure (delta p) does not exceed 420 bar (6090 psi).
•
A High Pressure Relief Valve to protect the system from shock loads above 450 bar (6525 psi) (delta p).
•
The multi function valve also includes a bypass valve to enable the vehicle to be moved at very low speeds for short
distances if an engine failure occurs.
The bypass valve is a manually operated valve and oil flow generated by the drive motor (acting as a pump) is allowed
to flow to the suction side of the motor.
A.
B.
C.
D.
E.
F.
G.
H.
J.
K.
L.
M.
8a -9a.
8b -9b.
8c-9c.
8d -9d.
POWER TRAIN - TRANSMISSION Hydrostatic
Bypass Actuator
Pressure Limiter Adjustment Screw
Pressure Limiter Lock Nut
Pressure Limiter Housing
Pressure Limiter Spring
Spring Seat
Check Valve Carriage
High Pressure Relief/check Valve Poppet
Valve Seat
Spring
Pressure Limiter Poppet Seat
Pressure Limiter Valve Poppet
Charge Check Valve
Pressure Limiter (420 bar) (6090 psi)
High Pressure Relief Valve (450 bar) (6525 psi)
Bypass Valve
1
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