What matters need to be paid attention to when cleaning the main parts of the excavator？

The four main components for the excavator cleaning :

1.General considerations for cleaning

(1) when cleaning, must pay attention to the position of parts of the original assembly and assembly relations.

(2) when cleaning, must be well ventilated, fire control facilities complete site, when clean with gasoline, must pay attention to fire prevention.

(3) when clean with mechanical method, be careful not to damage the parts.

(4) because the organic solvent such as gasoline, kerosene, diesel oil can dissolve all kinds of oils, and easy to use, no damage to parts, cleaning effect is good, can be used for high precision matching parts cleaning requirements. But as a result of this kind of solvents flammable, so it is important to note that fire prevention.

Clean with alkaline solution, should first will be solvent heating to 80 ~ 90 degrees, and then into the parts cleaning, parts after the oil is clean, with hot water to rinse parts, residual alkaline solvent to remove the parts surface, prevent corrosion parts are, and then blow dry with compressed air to parts.

2. carbon deposit

Around the combustion chamber carbon deposit on the parts, can lead to piston ring stick to death, the valve closed lax, nozzle clogging and compression ratio change, therefore, in the repair process of diesel engine, be sure to clear out the carbon deposit. Removal of carbon deposit has two kinds of mechanical QingChuFa and chemical solvent QingChuFa.

(1) mechanical QingChuFa parts will be cleared first bubble in the kerosene, then use knife, shovel knife, wire brush tools such as scraping, shovel, brush to carbon deposit on the surface of parts.

(2) chemical solvent is to use carbon agent, back will take immerse parts of carbon deposit in return carbon agent 2-3 h (temperature of 80 ~ 90 degrees), soften carbon deposit, with the brush or cloth remove carbon deposit, and then rinse with hot water, the last use compressed air to blow dry. Steel parts and aluminum alloy parts return carbon agent formula is different.

3. scale removal

Diesel engine manufacturers specified coolant should be adopted, if use qualified cooling liquid or not use a hard water, in the waters of the cylinder head, cylinder and the inner wall of the radiator is formed on scale, affecting engine cooling, even crack. Scale general cleaning with chemical method, cylinder head and cylinder block USES the cleaning fluid to clean. Cleaning fluid formula and the method of use.

Radiator inside scale USES weak acid cleaning, will join the radiator pipe, the weak acid soaking after 8 ~ lOh, put, then wash with hot water several times, put the hot water.

4. the rust removal

Exposed parts of diesel engine because it is exposed to air, easy to produce rust. General use steel wire brush or scraper and gauze to remove rust, and paint.