Operation0450−1/A1
Winterthur Gas & Diesel Ltd.
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2.4 Indications of a Fire
The indications of a fire as follows:
D You can hear the related temperature alarms.
D A large increase in the exhaust gas temperature of the related cylinder and an
increase in piston underside temperature.
D In some conditions the turbocharger can surge.
2.5 Fire-fighting Procedures
It is recommended that you do the procedures that follow:
1) Decrease the engine power.
2) Cut out the injection of the related cylinder as given in steps a) and b):
a) In the LDU−20, get the FUEL INJECTION page (see 4002−2, paragraph 3.7
Fuel injection).
b) In the Inj. cutoff field for the related cylinder(s), set the parameter to 0.
3) Although there is high temperature in the cylinder(s), increase the feed rate of
lubricating oil to maximum as given in steps a) and b):
a) In the LDU−20, get the CYL. LUB. page (see 4002−2, paragraph 3.9).
b) In the Manual Lub. To Cyl # field, set the parameter to the related cylinder
number.
4) In the Adjustment column, set the parameter to 150%.
Note: This will make sure that the cylinder(s) is (are) lubricated (see 7218−1
paragraph 6.4).
If the plant has a specified fire extinguisher system, (CO
2
gas) the containers can be
attached to the applicable connections on the scavenger air receiver. The related
shut-off valve must be fully leak-proof.
5) If you think there is a fire, shut down the engine and fill the scavenge space with
CO
2
gas.
Note: Make sure that you read 0210−1 Safety Precautions and Warnings,
paragraph11 Carbon Dioxide (CO
2
gas).
If steam is used to extinguish a fire, you must do the procedures to prevent corrosion.
It is possible that after approximately 5 minutes to 15 minutes, a fire will be
extinguished.
6) To make sure that a fire is extinguished, do a check of:
D The exhaust gas temperatures
D The temperatures of the doors to the piston underside space.
After the procedures above, you must stop the engine as soon as possible and find
the cause of the fire.
7) Do steps a) to e):
a) Do a check of the cylinder liner running surface, piston and piston rings.
b) Do a check of the air flaps in the scavenge air receiver (replace if necessary).
c) Do a check of for possible leakages.
d) Do a check of the piston rod gland as much as possible.
e) Do a check of the injection nozzles.
2014
Procedures to Prevent Contamination and Fire in the Scavenge Air Spaces
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