WÄRTSILÄ VASA 6L32, Instruction Manual

Page: 179 / 394

11. Crank Mechanism:
Crankshaft, Connecting Rod, Piston
11.1 Counterbalancing of crankshaft
11.1.1 General
The crankshaft is counterbalanced by means of weights on the
crank webs. The Wärtsilä 32 engines have counterweights on all
webs.
11.2 Crankshaft
11.2.1 Description of crankshaft
The crankshaft is forged in one piece and provided with counter-
weights fastened with hydraulically tensioned screws.
At the driving end of the engine, the crankshaft is equipped with
a V-ring for sealing of the crankcase, a combined flywheel/thrust
bearing and a split gear wheel for camshaft driving.
At the free end, there is a gear for driving of pumps and usually
a vibration damper.
The crankshaft can be turned by a electrical turning device
operating the flywheel. Separate instructions for the vibration
damper are submitted, if the engine is equipped with such.
11.2.2 Crankshaft alignment
The crankshaft alignment is always done on a thoroughly warm
engine, immediately after the engine is stopped. The crankshaft
alignment should be carried out rapidly but carefully. Only the
crankcase cover for the cylinder being measured should be opened
and it should be closed immediately after measuring. It is recom-
mended to switch off any forced ventilation close to the engine.
1 Combine extensions with the transducer to the re-
quired length.
2 Connect cable on the measuring unit.
3 Turn on the measuring unit by pressing Power-button.
Push “Light” if needed.
4 Reset the measuring unit by pressing Reset-button.
32-200020 Crank Mechanism: Crankshaft, Connecting Rod, Piston 11
WÄRTSILÄ 32 11 - 1