Is this the correct way to clean the exterior of a concrete mixer truck engine?

External cleaning of the concrete mixer truck engine

Step 1: First, cover the electrical appliances of the mixer truck with plastic film. Then, press a semi-wet towel over the upper side of the film to prevent high-pressure water from flowing into the distributor, making it difficult to start the mixer truck.

Step 2: Use a high-pressure water gun to flush the adhering dirt on the inner side of the engine and the outer surface of the mixer truck engine from top to bottom from the side of the engine.

Step 3: Evenly spray the external cleaning agent for the mixer truck engine directly onto the wet mixer truck engine and the surrounding area of the engine compartment. After three minutes, use a fiber brush to clean all the components that can be reached in the engine compartment.

Step 4: Use a high-pressure water gun to quickly rinse off the scrubbed dirt.

Step 5: Then spray the external cleaning agent for the mixer truck engine onto the engine surface. The operation steps are the same as above. Repeat this process until the exterior of the mixer truck engine is thoroughly cleaned.

Step 6: Finally, dry the thoroughly rinsed mixer truck engine with a semi-wet towel, and use a vacuum, water and air dryer to remove the areas that are hard to reach by hand. Then, let it air dry.

Step 7: Apply a plastic and rubber protective agent to polish the plastic and rubber parts on the inner side of the engine compartment, and then coat the metal parts.

Step 8: Finally, inspect the maintained mixer truck engine and the inner side of the engine chamber with a clean non-woven polishing cloth.