New Holland CX720 Repair Manual page 2843

STEERING Hydraulic - Testing (D.20.C - G.40.A.20)
NOTE: Power Steering Not Working or Working Incorrectly
N° Test Point
1 Do the other high pressure functions
operate?
2 Pressure test at steering motor. Is
approximately 200 bar (2900 psi)
measured at motor 'P' port when
steering wheel rotated?
tee'd into line)
TRAVELLING - STEERING Hydraulic
Expected Result
YES
Go to test 2
YES
Fault lies in steering motor.
form steering motor tests and steer-
(gauge ing systems
BSC1257A_975
BSC1330A
2 4/7/2006
D.20.C / 11
Other Result (Possible Cause)
NO
Fault in the CCLS pump circuit.
Perform Load sense circuit test, Low
pressure standby test and high pres-
sure standby test
NO
Per- Suspect a fault within the Priority
valve.
spool for sticking
1
2
Inspect the priority valve