New Holland CX720 Repair Manual page 2505

4. Insert a hex wrench into the pressure adjusting screw
(1).
Move the control lever so that pressure increases
in the high pressure closed circuit to the pressure
limiter setting. The limiter setting is reached when
the pressure stops increasing and remains steady at
a given level as shown on the gauges.
NOTE: A plastic dust cap may be used in the adjusting
screw.
Keep clear of all drives. Rotating elements may cause
serious bodily injury. Z108
5. Rotate the pressure adjusting screw with the hex
wrench until the desired pressure level is established
as shown on the gauges.
NOTE: Clockwise rotation of the adjustment screw will in-
crease the pressure setting, and counterclockwise rotation
will decrease the pressure setting. Each complete rotation
of the adjusting screw changes the pressure setting by 93
bar (1350 psi).
6. While holding the hex wrench and pressure adjust-
ing screw in the same position, tighten the adjust-
ing screw locknut (1) to 27 N·m (20 ft. lbs.) (5 mm
wrench). Do not over-torque.
Move the control lever so the pump returns to neu-
tral position. The pressure in the high pressure circuit
should return to the charge pressure setting. To ver-
ify the actual pressure setting, repeat step #4.
Shut down the combine and remove the two 690 bar
(10,000 psi) gauges and install the gauge port plugs.
7. The same procedure is used for setting the pressure
on the other multifunction valves, but the control lever
must be activated or moved in the opposite direction
so that the pressure develops in the opposite high
pressure side of the closed circuit.
POWER TRAIN - TRANSMISSION Hydrostatic
CAUTION
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