WÄRTSILÄ 41508, Инструкция по эксплуатации

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The thrust bearing rails are located at the flywheel bearing. The
outer rails close to the flywheel are marked with 00 and the inner
rails with 0.
The camshaft bearings are designated as the main bearings, the
thrust bearing bushes being designated 00 (outer) and 0.
Camshaft gear bearings. The bearings located on the flywheel side
are designated 00 and the inner bearings 0.
Upper and lower bearings shells. In bearings where both the
shells are identical, the upper one is marked with “UP”.
Designation of bearings
Operating side and rear side. Details located at the operating side
may be marked with “M” (Manoeuvring) and correspondingly “B” for
the back of the engine (B-bank on a V-engine).
Clockwise rotating engine. When looking at the engine from the
driving end the shaft rotates clockwise.
Counter-clockwise rotating engine. When looking at the engine
from the driving end the shaft rotates counter-clockwise.
Bottom dead centre
, abbreviated
BDC
, is the bottom turning point
of the piston in the cylinder.
Top dead centre , abbreviated TDC , is the top turning point of the
piston in the cylinder. TDC for every cylinder is marked on the
graduation of the flywheel. During a complete working cycle, compris-
ing in a four-stroke engine two crankshaft rotations, the piston reaches
TDC twice:
a) For the first time when the exhaust stroke of the previous working
5 4 3 2 1
5 4 3 2 1
0
0 00
0 00
0 00
Fig 00-2
3200528935
34SG-200328-02 Contents, Instructions, Terminology