Chapter 3. Propulsion, MJM 40z Owner’s Guide page 8
Check Fuel Filters
RACOR FILTERS
are installed after the shut-off valves in the
fuel lines, inside the Systems Room, on either side of the bulkhead, just forward
of the generator. Check these filters regularly for contamination or water that will
appear as a dirty gray, cloudy substance in the clear bowl. You should be able
to see through the pink fuel in the bowl. Bubbles in the filter while the engine is
running indicate a leak on the suction side of the fuel system.
Check Fuel Level
The primary cause of engine failure is running out of fuel.
Unlike gasoline engines, diesel engines need more fuel than they burn. They
return excess fuel to the tank. The feed and return of fuel to the port and
starboard engines are to their respective 175-gallon fuel tanks. The two
fuel tanks are connected at the bottom by a compensating fuel line with
isolating shut-off valves at aft inboard corners. The shut-off valves are normally
closed to prevent fuel from migrating from one tank to the other if the boat
lists. Shutting them and filling tanks to different levels also offers a convenient
way to trim an unevenly loaded boat. There’s a fuel level sensor in each tank.
(See Fuel Shut-off valves in
Safety Equipment,
page 4.)
3.3
S
TARTING THE
E
NGINES
Ensure
ENGINE HATCHES
are closed and that there are no lines and
hoses in the water near the drives before starting engines.
Turn on the
PORT ENGINE BATTERY
switch and
STBD ENGINE BATTERY
switch at
the upper right of the
120V breaker panel.
Don’t start the engine if people are in the water nearby.
Initiate e-Key Panel
At the helm, a red light flashes under the “
O
” symbol on the
e-
KEY PANEL
.
Hold the key fob in front of the “
O
”
symbol to unlock the
Electronic
Vessel Control (EVC)
system. A sound confirms the system is unlocked. The red
lamp goes out to indicate the system is unlocked.
T
wo key fobs come with the
boat. You can add two more. (See
Key Management
in the
VPOM
.) It’s not
necessary to use the fobs every time you start or turn off the engines.
Ensure the
ENGINE/SHIFT CONTROL LEVERS
are in neutral. The engines won’t
start if either lever is in gear.
Turn on Engines
Volvo recommends that you start the
PORT ENGINE
first and
shut down the
STARBORD ENGINE
first. Push the
IGNITION
buttons and wait until
the engine data appear on the
ENGINE CONTROL DISPLAY panel
.
Alarm Display
If, when an ignition button is pressed, there is a long continuous
beep and a “Stop Sign” appears on the
ENGINE CONTROL DISPLAY
panel, the
diagnostic function has registered a malfunction. (Refer to section
Fault
Handling,
page 68 of the
VPOM
for information and recommended actions.)
Start the Engines
Push the
START/STOP
button once for each engine. If you
don’t hear the engines (these are quiet boats) look at the
ENGINE CONTROL
DISPLAY
panel to see that it climbs to 600-700 rpms.
The boat may move abruptly when the gear is engaged. Ensure the
boat is clear of all obstacles forward and aft. Cautiously shift to the
IDLE
FORWARD
position then quickly back to
NEUTRAL
position. Observe whether the
boat moves as you expect.
If a warning light or buzzer activates, stop the engine immediately.
Determine the cause and repair the problem before continuing to operate.
RACOR FUEL FILTERS
e-KEY PANEL
ENGINE/SHIFT CONTROL LEVERS
N=Neutral position, engine at idle
F=Drive engaged, forward motion
R=Drive engaged, reverse motion
T=Engine RPM control (throttle)
Summary of Contents for 40z
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