Internal cleaning of cooling system.
Removing oil and grease
- If possible, run the engine until it has reached
operating temperature and then drain the
cooling system.
- Remove the thermostat(s).
- Fill the system with clean, hot water mixed
with liquid dishwasher detergent intended for
household machines.
Concentration 1% (0.1/10 l).
- Run the engine for approximately 20-30 minutes until it has reached operating temperature. Do not forget the cab heating
system (if fitted).
- Drain the cooling system.
- Fill the system again using clean, hot water and run the engine for about 20-30 minutes.
- Drain the water from the system.
- Reinstall the thermostat(s).
- Fill the system with coolant.
Note: The cooling system must never be
cleaned with caustic soda. There is
a risk of damage to aluminium parts.
Removing deposits.
- If possible, run the engine until it has reached operating temperature and then drain the cooling system.
- Remove the thermostat(s).
- Fill the system with clean, hot water mixed with some of the radiator cleaning agent available on the market which is based on sulphamic acid and contains dispersing agents.
- Follow the manufacturer's instructions for the concentration and cleaning period.
- Run the engine for the specified time and then drain the cooling system.
- Refill the system with hot water and run the engine for about 20-30 minutes.
- Drain the water from the system.
- Reinstall the thermostat(s).
- Fill the system with coolant.