jcb JS300 Service Manual page 161

Buzzer
The buzzer is activated to notify the operator of a message or a fault. Some messages/faults are
acknowledgeable and will silence the buzzer and some messages/faults are not acknowledgeable and the
buzzer will continue until the message/fault clears. If a message/fault is acknowledgeable, it can be silenced
by pressing the enter button on the display.
The buzzer will come on constantly while the Quickhitch mode is enabled and is not acknowledgeable. The
buzzer will change to an intermittent signal while the Quickhitch is unlocked and is not acknowledgeable.
Throttle Motor Calibration (Where applicable)
Mechanical Engine
Engine speed is controlled by the MECU (Machine Electronic Control Unit). The display is used to help calibrate
the throttle. The following procedure will calibrate the throttle.
1. Start the engine
2. Navigate to the machine set-up menu
3. Use the rotary control to select the Throttle Calibrate icon.
4. Press the rotary control. The display will show RPM (Revolutions Per Minute) and Throttle % during the
calibration process. The calibration screen will show a cross when calibration is required/aborted/failed a
timer when calibration is in progress and a tick when the calibration is complete. Once the calibration is
complete the display will exit calibration mode and the operator will have full control of the throttle.
Diesel Particulate Diffuser
CAUTION The exhaust pipe becomes extremely hot when the engine is running and will remain so for some
time after the engine is stopped. If you touch the hot pipe you could be severely burned.
Owing to the exhaust emission reduction function, the odour of the exhaust gas emitted from the tail pipe is
different from that of a conventional diesel engine. This does not indicate a failure.
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Coolant level low (amber)
Battery no charge (amber)
Air filter blocked (amber)
Livelink (amber)
Livelink (red)
9831/1100-2
Operation
Instruments
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