Operation
0820−1/A1
Winterthur Gas & Diesel Ltd.
1/ 7
Irregular Operation
1. Load Indications 1..................................................
2. Cylinder Lubrication 4..............................................
3. Exhaust Valve 5....................................................
4. Turbocharger 6.....................................................
5. Oil Mist Detector 6..................................................
6. Exhaust Waste Gate 7...............................................
1. Load Indications
At the same load indication compared to indications recorded before, or with data in
the acceptance records.
Problem Possible Causes Procedure
The scavenge air pressure
decreases
Scavenge air cooler (SAC) dirty on the air
side.
Water separator dirty or damaged.
See 6606−1 paragraph 3.
The intake temperature upstream of
turbocharger is high.
Make sure that the air intake
is clear.
The diffuser, blower and inducer to
turbocharger is dirty or damaged.
Clean the turbocharger during
operation, see the related
Turbocharger Manual.
The silencer upstream of the turbocharger is
dirty.
The turbine rotor blade is dirty or damaged.
The nozzle ring of turbocharger is damaged.
The exhaust gas boiler (plant side) is
clogged. There is increased resistance or
back pressure downstream of turbine.
Clean as soon as possible.
The scavenge air pressure
increases
The nozzle ring of turbocharger is dirty or
clogged.
Clean the turbocharger during
operation, see the related
Turbocharger Manual.
The exhaust temperature
upstream of turbocharger
increases
The air supply is not sufficient because of a
defect, or the turbocharger, silencer or
scavenge air cooler is very dirty.
Clean the turbocharger during
operation, see the related
Turbocharger Manual. See
6606−1, paragraph 3 Air side
cleaning of the SAC in
service.
The air flaps in the scavenge air receiver are
dirty or defective.
Clean, do an overhaul or
replace the air flaps.
The injection nozzles are worn. Replace the injection nozzles.
The intake temperature upstream of
turbocharger is high.
Make sure that the air intake
is clear.
The scavenge ports in the cylinder liner are
dirty.
Clean the scavenge ports.
2014
Operating Problems
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