New Holland CX720 Repair Manual page 2497

3. The charge pressure can also be measured at the
drive motor,(1), at test port (M3).
To find the actual charge pressure, check the case
pressure and subtract the case pressure reading
from the charge pressure reading.
Neutral
Forward
Reverse
Forward Brakes on
4. Servo Pressure
Gauges should be installed into the X1 (1) and X2
(2) ports of the control unit, located at the top of the
pump.
In neutral the pressure should be equal. As the
forward or reverse is activated a pressure rise on
one gauge should be countered with a correspond-
ing pressure drop on the other gauge.
This test may determine the reason for a unit that
creeps whilst the lever is in neutral. Joining the ports
together should stop the creeping, if this is the case
adjust the neutral position within the control unit. If
the unit still creeps when the ports are joined the
pump will require replacement.
POWER TRAIN - TRANSMISSION Hydrostatic
BSC1295A_942
Low Idle
36 Bar
522 PSI
28.3 Bar
410 PSI
29.5 Bar
428 PSI
26 Bar
377 PSI
BSD1448A
2 4/7/2006
C.20.F / 45
2
Charge Pressure
40.8 Bar
592 PSI
32.9 Bar
477 PSI
33.4 Bar
484 PSI
31 Bar
450 PSI
3
High Idle