Tab 6-18
GAV MANUAL VALVE TEST
Item
Function
Effect
001
START AST button
Starts the engine in astern direction (for reversible engine)
002
STOP button
Stops the engine
003
START AHD button
Starts the engine in ahead direction
004
CTRL. TR. button
Sends a signal for a control transfer to this LDU-20
005
PRINT button
Makes a screenshot of the current screen, refer to section
6.8.31 LDU-20 page - SCREENSHOT
006
INDEX button
Opens the INDEX page
007
GAVn button
Opens and closes the related gas admission valve (GAV), if
manual test request is active and conditions are OK
•
black fill - valve closed
•
no fill - valve open
NOTE:
Do a check of the sound of the movement of the gas
admission valve.
008
Manual Test Request button
Sends a signal for a manual test of the gas admission valves
NOTE:
You only can start the test mode, if the conditions
that follow are OK:
•
Engine at standstill
•
Turning gear is engaged
•
Usual range of servo oil pressure
•
Usual range of sealing oil pressure
009
Shutoff valve button
Opens and closes the shut-off valve for sealing oil (CV7296C)
X92DF
AA00-9606-19AAA-043B-A
Operation Manual
LDU-20 page - GAV MANUAL VALVE TEST
Winterthur Gas & Diesel Ltd.
- 337 -
Issue 002 2020-08
