47 - 2
Section D
9803/3280
Section D
47 - 2
Issue 1
Precision Control (Servo)
YES
YES
NO
START
NO
YES
NO
YES
A405600
Does the system operate if the seat is
locked in the opposite facing position?
Check that the arm rests are
raised forward (i.e. not pushed back)
Check the function of the seat mounted
proximity switches and condition of
associated wiring for damage. Repair
or renew as applicable.
Are the servo pressure isolation
valve solenoid coils faulty?
Renew the solenoid coil(s).
Are the relevant electrical
fuses intact?
Inspect and test all relevant wiring
for damage and short circuits.
Repair as applicable. Renew the fuses.
Is the wiring to the servo pressure
isolation valve solenoid coils intact?
Repair or renew as applicable.
Renew servo pressure isolation
valve cartridge.
Refer to Servo Pressure Supply Valve
- Dismantling and Assembly.
Refer to Electrical Operation
- Joystick Controller.
NO
Fault Finding
Chart A - No Servo Controls (system fails to operate)