Operator`s manual

Maintenance RD 27
wc_tx000426gb.fm 60
5.13 Engine Cooling System
See Graphic: wc_gr002226
Danger of burns. Only clean the engine cooling system when the
engine is cold.
5.13.1 Stop the machine, apply the parking brake and switch off the engine.
Allow the cooling system to cool completely.
5.13.2 Open the engine hood.
5.13.3 Slowly loosen the cooling system pressure cap in order to relieve
system pressure. Remove cap (a).
5.13.4 Remove the lower hose that is connected to the radiator. Allow the
coolant to drain into a suitable container (b).
Note: In the interests of environmental protection, place impermeable
sheeting and a container under the machine to collect the liquid which
drains off. Dispose of this liquid in accordance with environmental
protection legislation.
5.13.5 Replace the lower drain hose. Fill the cooling system with clean water
and with a 6 to 10% concentration of cooling system cleaner.
5.13.6 Install the cooling system pressure cap.
5.13.7 Close the engine compartment.
5.13.8 Start the engine and let it run for 90 minutes.
5.13.9 Stop the engine and allow the cooling system to completely cool.
5.13.10 Remove the cooling system pressure cap.
5.13.11 Remove the lower drain hose from the radiator. Drain the cleaning
solution.
5.13.12 Flush the cooling system with water until the draining water is
transparent.
5.13.13 Replace the lower drain hose.
5.13.14 Using long life, premix coolant, fill the coolant level to 1 cm of the
bottom of the fill pipe.
5.13.15 Start the engine and let run. Leave the cap off until the thermostat
opens and the coolant level stabilizes.
5.13.16 Inspect the gasket on the cooling system pressure cap. Replace the
cooling system pressure cap if the gasket is damaged.
5.13.17 Install the cooling system pressure cap.
WARNING