1. Drain the water from the cooling system and remove the pipe from where the diesel engine is connected.
2. Accurate 4% of rust removal acid solution and water, acid into the water, do not reverse.
3. Let it mix for a few minutes, then heat the solution to 49 ° C (120 ° F), the highest point, but no higher.
4. Slowly pour the solution through a filter cap or a branch into the pipe, where it will boil and foam. When the reaction stops, fill the radiator with the heated solution.
5. Let the solution sit in the system for a few minutes, then return the solution to its original container through the bottom pipe or drain.
6. Check the inside of the tank. If there is still scale, repeat the above steps to increase the acid solution to 8%.
7. After descaling, the following steps should be followed to neutralize the acid reaction: fill the container with clear water, heat to boiling point, plus daily comb crystal, according to the following ratio: 500g comb with 20 liters of water (1 pound with 4 galans of water), with this solution into the radiator, and then let it flow back to the original container.
8. Rinse the radiator several times with the above method, and finally let it stop in the radiator for one hour after filling. Rinse with hot water after emptying.
9. Before installing the radiator again, use water twice the normal working pressure to test whether there is leakage. Sometimes there will be water leakage because of scaling removal.
10. Before rerunning, the coolant should be added with the necessary anti-corrosion agent and the appropriate amount of high condensing agent.
Post time: Jun-02-2023