Maintenance
3103−1/A1
Winterthur Gas & Diesel Ltd.
1/ 3
Crank Deflection − Measure
Tools:
1 Crankshaft equipment (dial gauge) 94305
1. General
It is sufficient to measure the crank-web deflection in accordance with the intervals
specified in the class rules. It can be necessary to measure the crank-web deflection
in unusual conditions, for example:
D Important change of crank-web deflection results compared to the data before.
D Bearing temperature alarms, or bearing damage.
D After the primary bearing shells were replaced, and again after approximately
100 service hours.
D If the ship has touched the sea bed.
For the examples given above, it is recommended that you speak to Wärtsilä for
support.
2. Preparation
Make sure that:
D The indicator valves are open.
D The ship floats freely in the water as horizontal as possible.
D The crankshaft is in position on all the main bearings.
The data that follow have an effect when
you measure the crank web:
D The engine is cold, or has service
temperature.
D The temperature difference between
the lubricating oil sump and the
seawater.
D The loaded condition of the ship (the
draught).
D Strong sunshine.
It is recommended that you include these
data in the records.
3. Measure
WARNING
Injury Hazard: Before you
operate the turning gear,
make sure that no
personnel are near the
flywheel, or in the engine.
Note: Make sure that you turn the
flywheel (1, Fig. 1) and pinion (2) in
the correct direction (The arrows
show the correct direction.)
2016
Crankshaft
2
1
013.051/05
Fig. 1
To Next Page
Loading...