Operation Manual

6
© 2002
6.3.1 Cleaning Intervals
6.3.2 Cleaning Cooling System
● The amount of contamination in the cooling
system depends on the engine application.
● Spilled oil or fuel on the engine increases the
risk of contamination. Be especially careful if
the engine is used in dusty environments.
● Serious contamination can occur, for
example:
– on construction sites where there is a
high level of air-borne dust.
– in harvesting application where there are
high concentrations of chaff and chopped
straw in the vicinity of the machine.
● Because applications vary, cleaning in-
tervals have to be determined from case
to case. The cleaning intervals given in
the table below can be used as a guide.
Series 1012/1013
● Place a cleaning bath under the heat ex-
changer (it. 2).
● Remove the service flap on the heat ex-
changer (see insert).
Compressed Air
– Blow out heat exchanger with com-
pressed air (first from it. 3, then from
it. 1).
Be careful not to damage the cooling
fins.
– Wash out loosened dirt with a hose.
Checking / Cleaning Intervals
Suggested OH Application
2000 Ships, gensets in enclosed
spaces, pumps
1000 Vehicles on paved roads
500 Tractors, forklift trucks,
mobile gensets
250 Vehicles on construction sites
and unpaved roads, construc-
tion equipment, compressors,
underground mining equipment
125 Agricultural machiner,
harvester tractors
Cold Cleansing Agent
– Spray the heat exchanger with a com-
mercial cold cleansing agent and let
stand for about 10 minutes.
– First spray clean with a water jet from
position 3 then from position 1 (do not
spray sensitive engine components
directly with a water jet, eg generator,
cables, electronic components, fan
drive).
Cleaning with steam or with hot water
– Remove oil and grease residues with
the jet set at a gentle setting.
● Refit service flap.
● Run the engine up to normal operating
temperature to evaporate any remaining
water.
Series 1012E/1013E
● If an external cooling system is fitted, follow
the manufacturer’s instructions.
Unit engine
● Clean as described under series 1012/1013.
The cleaning jet must be positioned parallel to
the cooling-air ducts.
Hose pressure: max. 100 bar
© 26 252 1
6.3 Cooling System Service and Maintenance