ON THE WATER
SECTION 3
CMD-3967823 / 90-865237030 OCTOBER 2003 Page 25
CE465
Duty Cycle Rating
IMPORTANT: Damage caused by improper application or failure to operate the power
package within the specified operating parameters, will not be covered by the
Cummins MerCruiser Diesel Limited Warranty.
It is the responsibility of the boat manufacturer and/or the installing dealer to ensure that the
power package is properly applied. In all cases, the power package must be equipped with
a propeller that will allow the engine to operate at wide open throttle (WOT) at the Rated
Engine rpm.
PLEASURE DUTY RATING
The Pleasure Duty Rating applies to recreational planing craft used exclusively for pleasure
and recreation. Typical applications include pleasure craft such as sailboats, ski boats,
runabouts, speedboats, and other planing hulls. Application must conform to the Pleasure
Craft / Recreational duty cycle shown (EPA Mode Number Cycle 5 / ICOMIA 83-28 Duty
Cycle).
EPA Mode Number
-
Modes
-
Duty Cycle
1 2 3 4 5
Engine Speed (Percent of WOT) 100 91 80 63 Idle
Engine Power (Percent of Total) 100 75 50 25 0
Time At Given Mode
(Percent Of Total Operating Time)
8 13 17 32 30
79175
a
b
c
d
e
Chart showing full power operation is limited to a maximum of 1 of 12 hours
a-Mode 1: 1.0 hour (8 percent)
b-Mode 2: 1.5 hours (13 percent)
c-Mode 3: 2.0 hours (17 percent)
d-Mode 4: 4.0 hours (32 percent)
e-Mode 5: 3.5 hours (30 percent)
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