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CD5
Important Information
CD598
Operation and Maintenance
RECOMMENDED OPERATION / DUTY CYCLE
It is the operator’s responsibility to operate within the following specified operational capability, or duty cycle, as
applicable to engine and installation:
PLEASURE DUTY RATING
• Engine Specified Operating rpm Range
Model
Rpm
D4.2L and D4.2L LD 3400-3600
D3.6L, D2.8L D-Tronic, D4.2L D-Tronic 3600-3800
• Wide-Open-Throttle operation is limited to short periods of time.
LIGHT DUTY RATING
• Engine Specified Operating rpm Range
Model
Rpm
D4.2L and D4.2L LD 3400-3600
D3.6L, D2.8L D-Tronic, D4.2L D-Tronic 3600-3800
• Wide-Open-Throttle operation is limited to less that 10% of operating time.
• Continuous cruising rpm is limited to at or less than 90% of Wide-Open-Throttle rpm.
• Annual operating time is not to exceed 500 hours.
NOTE:
Pleasure duty rating
applies to recreational planing craft used exclusively for pleasure and recreation.
Light duty rating
applies to planing boats where the use of full rated power at maximum rated RPM is limited (as
stated above). Examples of Light Duty applications include, but are not limited to: search and rescue craft, fast
patrol boats, fire boats, dive boats, and limited season fishing boats such as sport-fish charter boats. Application
to common commercial crafts having full-displacement or semi-displacement hulls exceeds the recommended
operational capability, or duty cycle.
IMPORTANT: Damage caused by improper application or failure to operate within the operational
capability, or duty cycle, will not be covered by the MerCruiser Diesel Limited Warranty.
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