WÄRTSILÄ Vasa R22, Instruction Manual

Page: 174 / 297

The air outlet housing of the turbocharger is connected to the
air duct (2) of the engine through a piece of metal bellows (1),
which allows thermal expansion of the air duct, see Fig 15-1.
Caution! The surfaces of the turbocharger and the air duct are hot.
The exhaust pipes from the engine are also connected to the
turbocharger through metal expansion bellows. The exhaust pipe
after the turbocharger should be arranged according to the instal-
lation instructions.
The turbocharger is equipped with cleaning devices for cleaning
of both the compressor and the turbine by water injection.
The turbocharger is supported by a bracket, which is fastened
to the engine block at the free end of the engine with screws.
Turbocharger and air cooler
15.1.2 Turbocharger maintenance
Maintenance of the turbocharger is carried out according to the
instructions of the turbocharger manufacturer. It is recom-
mended to use the service net of the engine manufacturer or the
turbocharger manufacturer.
Normal overhauls can be carried out without removing the
turbocharger from the engine. When dismantling, remove the
protecting covers and the connection pipes for water. Loosen the
exhaust inlet and outlet pipes.
When reassembling, take care that all seals are intact. High
1
A
A
A - A
2
7
3
4
6
5
1. Bellows
2. Air duct
3. Air vent screw
4. Water box
5. Water box
6. Draining pipe
7. Hole for the
lifting tool
Fig 15-1
2215519212
15 Turbocharging and Air Cooling 22-200520
15 - 2 VTR Turbocharger