Operator`s manual

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H. Periodic maintenance
H6. Maintenance every 2000 hours or every other year
H6.1. Clean coolant system (40)
Periodically check and clean the outside of the radiator by
means of compressed air or by flushing through with
water. Also clean from the fan side of the radiator.
The cooling system can be thoroughly cleaned if
problems occur in the function, in which case clean as
follows.
Clean the coolant system using a special cleaning agent
available from your dealer. Follow the manufacturer’s
instructions.
H 6.1.1. Draining
Always stop the engine before draining the coolant.
A
H34
1
--- ALWAYS open the cap (1) of the expansion tank first.
carefully. At running temperature the expansion tank
has overpressure (1.0 bar).
2
A
H35
--- Loosen the lower water pipe (2) (remove the finger shi-
eld if necessary). The best way to drain the system is to
loosen the upper end of the pipe and then loosen the
lower end, then the pipe can be bent to the side and the
fluid drained into a container.
A
H36
3
--- O p e n t h e t a p ( 3) on the cylinder block
--- Turn on the heater control in cab. Drain the fluid into a
container.
--- Drain the water pump by cranking the engine a few revs
with the drain plugs removed.
H 6.1.2. Filling
Mix the antifreeze and water according to the
manufacturer’s instructions.
Before filling:
--- Fasten the radiator lower hose (2)
---Close the drain plug of the cylinder group (3)
AH37
4
--- Loosen the hose placed on the thermostat housing
going to the expansion tank and check that the restric-
tor hole (Ø about 2 mm) in the union (4)isopen.Re-
fasten the hose.