3.1
Make sure that the LDU-20 is the active control location. If necessary, select the
CTRL.TR button to transfer control.
3.2
To change modes, move the cursor on the related button then push the rotary
button.
NOTE:
The indicator (orange triangle) shows the control mode of the LDU-20
(speed mode or fuel command mode).
NOTE:
If the MCM-11 becomes defective, a fuel command mode is selected
automatically.
NOTE:
While in edit mode, the text field has an orange frame. Turn the rotary
button to adjust the set point (turn clockwise to increase,
counterclockwise to decrease).
3.3
To adjust the speed or fuel command setpoint, move the cursor to the related field
then push the rotary button to enter the edit mode.
3.4
To go out of the editing mode, push the rotary button again.
4
To change the LDU-20 control location from the CONTROL LOC. page, do the steps that
follow:
4.1
Push the CTRL. TR. button to accept control to the LDU-20 at your location.
4.2
To get / accept control to / from a different location, select the related on-screen
button, then push the CHECK button.
5
To adjust the fuel injection parameters from the FUEL INJECTION page, do the steps that
follow:
5.1
Turn the rotary button to move the cursor to the related text field.
5.2
Push the rotary button to enter the edit mode.
5.3
Turn the rotary button to adjust the value (turn clockwise to increase, or
counterclockwise to decrease).
5.4
Push the rotary button again to go out of the edit mode.
WARNING
After an air run, the crankshaft can turn suddenly when the pressurized air in the cylinder
releases. There is a risk of death, serious injury or damage to components. Before you do
maintenance on the engine, engage the turning gear, or start the Crank Angle Determination
Algorithm (ADA) a second time:
•
Make sure that there is no pressurized air in the cylinder and the starting air pipes
•
Make sure that you open the relief valves on all cylinder covers to release the pressure
6
To do an ADA Start from the CRANK ANGLE page, do the steps that follow:
NOTE:
It is possible to do the ADA procedure with open or closed indicator valves.
6.1
In the LDU-20, get the USER PARAMETERS page.
6.2
Push the AIR RUN button until the engine status changes from ADA to AIR RUN.
NOTE:
It is also satisfactory if each cylinder was activated and has moved
automatically at the ADA procedure (independently from the direction in
which the engine turns).
NOTE:
If the ADA procedure has activated each cylinder but the engine stays in
its initial position, release the AIR RUN button. Do
6.3
If the ADA procedure is not successful (ie the absolute crank angle position could
not be found), do the steps that follow:
6.4
Open the indicator valves on all cylinders to release the compressed air.
6.5
Make sure that the starting air pressure is sufficient.
X52
AA00-0000-00AAA-131I-A
Operation Manual
Operate the local display unit (LDU-20)
Winterthur Gas & Diesel Ltd.
- 272 -
Issue 002 2018-11
