Alarm Indicator Functions
Alarm indicators and buzzer come on when
sensors detect an abnormality during
engine operation. The alarm indicators are
off during normal operation, but come on as
follows when an abnormality arises:
• Cooling water temperature alarm indicator
comes on when the fresh water gets too
hot.
• Lube oil pressure alarm indicator comes
on when the engine lube oil pressure
drops.
• Electric charge alarm indicator comes on
when there is a charging failure.
Rocker Switch Panel
The rocker switch panel has the following
functions.
1st Station Panel (Figure 8)
Start
Eng ON
OFF
Emergency
Stop
Sub throttle active
Sub throttle
0002026
1
3
2
Figure 8
1. To start and stop the engine:
• To start the engine, push upper half of
Eng ON switch (Start).
• To stop the engine, push bottom half of
Eng ON switch (OFF).
Note: The engine will take 2 to 7 seconds to
stop running after the bottom of the rocker
switch is pressed.
2. Emergency Stop (Figure 8, (2))
NOTICE: Use this switch only in an
emergency. Under normal
circumstances, use the Eng ON switch
(Figure 8, (1)) to stop the engine.The
engine shuts down suddenly when the
upper half of the Emergency Stop switch
is pushed. Push the bottom half of the
switch after the engine has shut down to
return the switch to the center.
Note: Restarting the engine after using the
Emergency Stop switch may be slower or
more difficult than normal starting.
3. Sub throttle Control (Figure 8, (3))
In the unlikely event that the throttle
control fails, the Sub throttle indicator
light will flash and the engine speed is
controlled by the Sub throttle. Engine
speed rises when the Sub throttle knob
is turned clockwise.
• When the Sub throttle indicator
flashes, turn the Sub throttle knob
counterclockwise to the end and turn
the knob clockwise gradually until the
Sub throttle indicator turns on (steady
light).
• Each engine is controlled by a
dedicated Sub throttle controller.
PRODUCT OVERVIEW
6LY3 LDC Operation Manual
17
© 2008 Yanmar Marine International