Series 50 – Section 4.7 Radiator

Section 4.7
Radiator

The radiator is an OEM supplied component. Follow OEM guidelines.‪

Section 4.7.1
Repair or Replacement of Radiator

Perform the following steps to reverse flush the radiator:‪

1. Remove scale in cooling system by using a descaling solvent. Follow manufacturer's instructions.
2. Neutralize the system with a neutralizing agent. Follow manufacturer's instructions.
3. Drain the cooling system. Refer to "13.5.4 Cooling System" .
4. Remove the radiator inlet and outlet hoses.
5. Remove the water pump inlet and outlet hoses.
6. Attach a hose to the top of the radiator to lead water away from the engine.
7. Attach a hose at the bottom of the radiator and insert a flushing gun in the hose.
8. Connect the water hose of the gun to the water outlet and the air hose to the compressed air outlet.

   NOTICE:
   Apply air gradually. Do not exert more than 138 kPa (20 lb/in.2 ) air pressure. Too great a pressure may rupture a radiator tube.‪

9. Turn on the water and when the radiator is full, turn on the air in short blasts, allowing the radiator to fill between blasts.
10. Continue flushing until only clean water is expelled from the radiator.
11. Remove flushing gun and hoses from radiator.
12. Attach the water pump inlet and outlet hoses.
13. Attach the radiator inlet and outlet hoses.
14. Fill cooling system. Refer to "13.5.4 Cooling System" .
15. Refer to "11.3.5 Cooling System" for verification of proper radiator installation.