Operation
0290−1/A1
Winterthur Gas & Diesel Ltd.
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Operation at Overload
1. General
Usually, the engine is only operated at overload (110% of CMCR power) during sea
trials when there is an authorized representative of the engine builder on board the
ship.
The limit for operation of the engine at overload is a maximum of one hour each day
(see also 0070−1 The Relation between Engine and Propeller).
During operation at overload, you must carefully monitor the engine. If there are
unusual indications, you must decrease the load (power).
The load indication (fuel injection quantity) and the exhaust gas temperature
upstream of the turbine show the engine load (see 0250−1 Operating Data Sheet,
and the Acceptance Records).
The coolant temperatures must stay in their usual ranges.
In usual service, the full load position of the load indication (fuel injection quantity)
must stay in the limits given (see the Acceptance Records).
The maximum permitted position of the load indication (fuel injection quantity) is given
in the Acceptance Records. The adjustments are only permitted to show the CMCR
power during sea trials with an overspeed of 104% to 108% of CMCR power.
The conditions given below affect the speed of the ship:
D Sailing into strong head winds
D Sailing in heavy seas
D Sailing in shallow water
D When there is unwanted heavy growth on the hull.
The governor increases the fuel quantity to keep the speed of the ship constant. The
increase in the fuel injection quantity shows on the FUEL INJECTION page in the
LDU−20 (see 4002−2, paragraph 3.7).
Operation
2014
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