WinGD RT-flex50DF, Maintenance Manual, Page: 449 / 586

Maintenance
6606 − 1/A2
Winterthur Gas & Diesel Ltd.
3/ 3
3. SAC Air Side − Clean during Operation
The equipment necessary to clean the air side of the SAC is installed on the engine.
The quantity of contamination in the SAC is related to the condition of the airflow into
the SAC and the maintenance of the air suction filter on the turbocharger.
Note: It is recommended that you clean the SAC in tropical conditions because
of increased condensation.
3.1 Procedure
Clean the SAC while the engine operates at less than 50% load (see also the
instruction panel on the engine).The air temperature downstream of the compressor
(turbocharger) must not be more than 100
°
C. This is because heat will change too
much of the cleaning agent to evaporated.
1) Make sure that compressed air and fresh water are available at the shut-off
valves (1 and 12, Fig. 2) .
2) Open the ball valves (2 and 10, Fig. 2 ).
3) Fill the mixture tank with recommended chemical doses at the funnel (11).
4) Open the freshwater valve (12), fill the tank up to desire level.
5) Close the ball valves for air vent and freshwater (2 and 10).
6) Open the ball valve for compressed air (1).
7) Open the ball valves (4 and 9). The mixed fluid comes out of the nozzles (5) as a
spray into the SAC (6) for approximately one minute.
8) Close the ball valve compressed air (1).
9) Close the ball valves (4 and 9).
10) Open the ball valve (2) for
depressurization of the mixing tank.
11) After approx. 10 min flush the system
by fresh water, step 2 to 11 without
chemical.
2020
Scavenge Air Cooler
2020
ENGINE
PLANT
12
10
5
2
4
9
1
6
3
Fresh Water
Control Air
11
WCH02245
Fig. 2