Service Manual

6
© 2001
6.8. Engine Cleaning Service and Maintenance
6.8.1 Engine cleaning
Using compressed air
● Switch off the engine.
● Remove engine covers and cooling air
hood. Replace them after cleaning and
before the test run.
● Cover electrical / electronic components /
connections (e.g. generator, starter, gov-
ernor, solenoid).
● Blow air through the engine, taking particu-
lar care not to damage the cooler and
cooling fins (begin to blow through air from
the exhaust side).
Remove the dirt which has blown into the
interior space.
Using cold-cleaning compound
● Switch off the engine.
● Remove engine covers and cooling air
hood. Replace them after cleaning and
before the test run.
● Cover electrical / electronic components /
connections (e.g. generator, starter, gov-
ernor, solenoid).
● Spray the engine with the commercial cold-
cleaning compound and allow to react for
approx. 10 mins.
● Spray clean the engine with a strong water
jet, repeat if necessary.
● Allow the engine to run warm so that the
remaining water evaporates.
Using high pressure device
● Switch off the engine.
● Remove engine covers and cooling air
hood. Replace them after cleaning and
before the test run.
● Cover electrical / electronic components /
connections (e.g. generator, starter, gov-
ernor, solenoid).
● Clean the engine with a steam jet (max.
spray pressure of 60 bar, max. steam
temperature of 90ºC).
● Allow the engine to run warm so that the
remaining water evaporates.
Clean the engine only when the
engine is switched off!
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