Table of Contents
Advertisement
Section 3 - On the Water
Cummins MerCruiser Diesel engines must be used in applications that meet the operation specifications indicated by the
appropriate Cummins MerCruiser Diesel application manual. The power package must be equipped with a gear ratio and propeller
that allows the engine to operate at wide open throttle (WOT) at the engine's Rated Speed (RPM). Use of Cummins MerCruiser
Diesel engines in applications that do not meet specified operational parameters is not approved.
High Output Rating
A High Output Rating applies to variable load applications where full power is limited to one (1) hour out of every eight (8) hours
of operation. Reduced power operation must be at or below cruise speed (RPM). Cruise speed is dependant on the engine's
maximum rated speed (RPM):
Rated Speed (RPM)
2000–2800 RPM
2801–3500 RPM
3501–4500 RPM
This rating is for pleasure (non‑revenue generating) applications that operate 500 hours or less per year.
Operation Chart
Starting Procedure
Open the engine hatch and
completely ventilate the bilge.
Turn the battery switch on, if
equipped.
Turn on and run the engine
compartment bilge blower, if
equipped, for 5 minutes.
Check for leaks: fuel, oil,
water, fluid, etc.
Open the fuel shut‑off valve, if
equipped.
Open the seacock, if
equipped.
Prime the fuel injection
system, if necessary.
•
Turn the key switch to
"START" position and
release. OR
•
Turn the key switch to the
"RUN" position then
depress and release the
start/stop switch, if
equipped.
Warm‑up the engine at a fast
idle‑RPM for several minutes.
Page 26
Reduced Power Operation
After Starting
Monitor instrumentation to
confirm normal engine
operation.
If not normal, stop the engine.
Check for fuel, oil, water, fluid,
and exhaust leaks, etc.
Check shift and throttle control
operation.
Check steering operation.
Cruise Speed (RPM)
Reduction from Rated Speed (RPM)
200 RPM
300 RPM
400 RPM
While Underway
Monitor instrumentation to
confirm normal engine
operation.
Listen for the audio alarm.
Stopping and Shut Down
Shift the remote control lever
to the neutral position.
Run the engine at idle‑RPM
for several minutes to allow
the turbocharger and engine
to cool.
Turn the key switch to "OFF"
position.
Turn the battery switch off, if
equipped.
Close the fuel shut‑off valve, if
equipped.
Close the seacock, if
equipped.
Flush the seawater cooling
system if operating in
saltwater, brackish, or polluted
water.
90-8M0057081
MARCH 2011
eng
Advertisement
Table of Contents
