18.2 Space requirements for maintenance
18.2.1
Working space around the engine
The required working space around the engine is mainly determined by the dismounting dimensions of
engine components, and space requirement of some special tools. It is especially important that no ob-
structive structures are built next to engine driven pumps, as well as camshaft and crankcase doors.
However, also at locations where no space is required for dismounting of engine parts, a minimum of 1000
mm free space is recommended for maintenance operations everywhere around the engine.
18.2.2
Engine room height and lifting equipment
The required engine room height is determined by the transportation routes for engine parts. If there is
sufficient space in transverse and longitudinal direction, there is no need to transport engine parts over the
rocker arm covers or over the exhaust pipe and in such case the necessary height is minimized.
Separate lifting arrangements are usually required for overhaul of the turbocharger since the crane travel
is limited by the exhaust pipe. A chain block on a rail located over the turbocharger axis is recommended.
18.2.3
Maintenance platforms
In order to enable efficient maintenance work on the engine, it is advised to build the maintenance platforms
on recommended elevations. The width of the platforms should be at minimum 800 mm to allow adequate
working space. The surface of maintenance platforms should be of non-slippery material (grating or chequer
plate).
18.3 Transportation and storage of spare parts and tools
Transportation arrangement from engine room to storage and workshop has to be prepared for heavy engine
components. This can be done with several chain blocks on rails or alternatively utilising pallet truck or
trolley. If transportation must be carried out using several lifting equipment, coverage areas of adjacent
cranes should be as close as possible to each other.
Engine room maintenance hatch has to be large enough to allow transportation of main components to/from
engine room.
It is recommended to store heavy engine components on slightly elevated adaptable surface e.g. wooden
pallets. All engine spare parts should be protected from corrosion and excessive vibration.
On single main engine installations it is important to store heavy engine parts close to the engine to make
overhaul as quick as possible in an emergency situation.
18.4 Required deck area for service work
During engine overhaul some deck area is required for cleaning and storing dismantled components. Size
of the service area is dependent of the overhauling strategy chosen, e.g. one cylinder at time, one bank at
time or the whole engine at time. Service area should be plain steel deck dimensioned to carry the weight
of engine parts.
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Product Guide Wärtsilä 34DF - 3/2012
Product Guide
18. Engine Room Layout
