Chart A: No Servo Controls (System Fails To Operate); Dismantling And Assembly - jcb 214e Service Manual

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Section D
47 - 2
Fault Finding
Chart A - No Servo Controls (system fails to operate)
START
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)
Are the servo pressure isolation
valve solenoid coils faulty?
Are the relevant electrical
fuses intact?
Is the wiring to the servo pressure
isolation valve solenoid coils intact?
Renew servo pressure isolation
valve cartridge.
9803/3280
Precision Control (Servo)
NO
NO
YES
YES
Refer to Servo Pressure Supply Valve

- Dismantling and Assembly.

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Controls
Check the function of the seat mounted
proximity switches and condition of
YES
associated wiring for damage. Repair
or renew as applicable.
Renew the solenoid coil(s).
YES
Inspect and test all relevant wiring
for damage and short circuits.
NO
Repair as applicable. Renew the fuses.
Repair or renew as applicable.
NO
Section D
Refer to Electrical Operation
- Joystick Controller.
A405600
47 - 2
Issue 1