4-10
Switches and Controls (cont’d)
Redundancy Switch
The Redundancy Switch allows you to start and operate the
machine with the EMS system switched off. This may be
necessary in the event of system failure or when jump-
starting the machine. The switch is located in the fuse box
behind the seat.
Under normal conditions the switch A is OFF. The switch has
a lock in the cap which must be slid towards the centre of
the switch when pressing.
By switching the Redundancy Switch the engine can be
started, the hydraulic functions are operable and the engine
will run at idle speed. The monitor will display “LIMP
MODE”. The machine should be operated in this mode only
to allow the machine to be moved to a safe position (See
below for a method of raising engine speed while in this
mode.)
Mechanical Engine Speed Override
To use the machine in redundancy (LIMP) mode, adjust the
mechanical engine speed override screw B. Increase the
r.p.m. to an intermediate speed which is adequate for the
machine to operate.
Servo Controls Immobilisation
There are two means of immobilising the machine servo
controls:
1 Raising the Control Lock Lever (see Left Console).
2 Pressing the Servo Isolator Switch (see Facia Panel).
Note: If you use the Control Lock Lever to isolate the
controls, then only that lever can reactivate the controls.
Similarly, if the Servo Isolator Switch has been used to
isolate the controls, only that switch will reactivate them.
Section 1 General Information
9803/9330
Section 1
4-10
Issue 1
Operation
AA
!
WARNING
Servo Isolator Switch
Use the servo isolator switch when you are not operating
the machine, to avoid accidentally operating the controls
and causing a dangerous movement of the machine.
Before adjusting the cab environment, e.g. opening the
windows or adjusting the seat, you must always isolate
the controls using the servo isolator switch.
8-1-2-7
AA
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