ABB A140-H56 Operation Manual page 66

Operation Manual / A130-H.. - A140-H..
8 Periodic maintenance
8.2.1 Wet cleaning of the compressor with external water pressure vessel
Turbochargers can be equipped with an external water pressure vessel (4) for wet cleaning of
the compressor.
Pressurized air from the compressor casing (1) of the turbocharger passes through the
pipe (2) into the water pressure vessel (4). As a result, the water is pressed into the pipe (6)
and guided to the filter silencer or air suction branch.
8.2.2 Prerequisites
To carry out the cleaning operation checked and recommended by ABB Turbo Systems, the
engine load must be 50 % to 85 %.
8.2.3 Procedure for wet-cleaning the compressor
Cleaning parameters for each compressor
Engine load Filling amount of water pressure vessel [dm
50 ... 85 %
Table 9
Operation of the water pressure vessel
Remove sealing plug (5).

Fill container with 0.4 dm

Screw in sealing plug (5) again.

Push valve activator (3) against the spring and hold for 10 ... 15 seconds until the whole

volume of water is injected.
After cleaning operations, a waiting period of at least five minutes is required for the com-

pressor stage to dry.
© Copyright 2013 ABB. All rights reserved.
1 Compressor casing
2 Pressurized air inlet pipe
3 Valve activator
4 External water pressure vessel
5 Sealing plug
6 Water pipe to filter silencer or air suction branch
0.4
pure water.
3
HZTL2414_EN
] Water injection period [s]
3
10
Revision B
Page 64 / 115
March 2013