Running The Engine For Ship Operation; Operating Ranges For Marine Engines - Man D2868 LE426 Operating Instruction

MAN marine diesel engines D2868 LE4.. / D2862 LE4..
Operation

7.5 Running the engine for ship operation

7.5.1

Operating ranges for marine engines

(1) Acceleration
S Brief operation for increasing the load by increasing the rpm
S Speed less than 100% of the rated speed
S If there is prolonged operation with overload, a warning is output via the MMDS
S Continuous operation is allowed for "heavy" operating mode
S Continuous operation is not allowed for medium and light operating modes
(2) Normal operation
S Continuous operation allowed, limit speed 100 to 102% of rated speed
(3) "As new" condition
S Operating range for new, fully laden ship
S Continuous operation allowed, limit speed 102 to 104% of rated speed
(4) Low load
S Operating range for relatively high rpm and low loads
S Continuous operation allowed but inefficient
68
Speed in %
Carefully read through the Operating Instructions before starting any work!
This particularly applies to the General Safety Instructions section
and the safety instructions in the various chapters.