jcb JS300 Service Manual page 629

Test Run Mode
To select the test run mode, proceed as follows:
1 Start the engine and enable the hydraulic controls. If
necessary operate the machine until the hydraulic oil
temperature is between 50 ºC and 85 ºC.
The test run mode will not enable unless the hydraulic
oil temperature is within the correct range, and the
hydraulic controls are enabled.
2 Select the test run mode to display the test run status
K Selecting
screen.
Modes ( T C-203)
3 Press the select rotary control on the DECU to start
the test run mode. The engine automatically goes to
the H power band.
1
2
3
Fig 3. Test run status screen
1 Engine rpm (actual)
2 Pump solenoid current (actual)
3
Hydraulic oil temperature (actual)
(1) If the symbol is grey, the oil temperature is out of
range. The test run mode is not enabled.
To exit the test run mode press the back button or home
button. Disabling the hydraulic controls or switching off the
engine will also exit the test run mode.
C-204
the Diagnostic
C130400
(1)
9813/5100-1
Section C - Electrics
Machine Diagnostic Modes
Selecting the Diagnostic Modes
Pressure Switch Status Mode
To select the pressure switch status mode, proceed as
follows:
1 Start the engine and enable the hydraulic controls.
2 Select the pressure switch status mode to display the
pressure switch status screen.
Diagnostic Modes ( T C-203)
1
2
3
4
Fig 4. Pressure switch status screen
1
High flow auxiliary pressure switch
2 Overload caution pressure switch
3 Travel pressure switch
4 Swing pressure switch
5 Excavator pressure switch
6 Crowd pressure switch (quickhitch)
7
Boom up pressure switch
(1) The symbol is only shown if the applicable option is
fitted.
When a symbol on the status screen is grey, the
applicable pressure switch is not active.
When a symbol on the status screen is green, the
applicable pressure switch is active.
To exit the pressure switch status mode press the back
button or home button. Disabling the hydraulic controls or
switching off the engine will also exit the pressure switch
status mode.
K Selecting the
5
6
7
C130390
(1)
(1)
(1)
(1)
C-204