In normal use, check the coolant level at least once a month. If the weather is hot, check the number should be more. The diesel engine should be checked at normal operating temperature, observe the Baotou beiben heavy truck parts expansion cooling liquid in the tank, the liquid level should be in the “FULL” (full) marked with “ADD” (add) between the markers (or between labeled “GAO” and “DI”).
(1) cleaning of radiators. The radiator is arranged in the washing tank, cleaning off the scale, and its methods:
An aqueous solution containing 3% to 5% sodium carbonate is filled in the washing tank, and the temperature of the solution is kept at a temperature of about 80 DEG C to about 90 DEG C, and the radiator is removed after about 5 to 8h.
The washing pool filled with water solution containing caustic soda from 10% to 15%, heating the radiator in the solution for 25 ~ 30min, wash with water after removing. The radiator scale is serious, can use hydrochloric acid solution 3% ~ 5%, and by 3 ~ 5g per liter of solution with six methylene amine four, and then heated to 60 to 70 DEG C, cleaning of about 30min, with hot alkali water and finally rinse with hot water.
(2) sealing test. Baotou beiben heavy truck radiator parts after cleaning, should check whether the seal. Check the radiator inlet, with a cork or rubber plug plug, fill water with special sealing water mouth, from the drainage pipe with the inflator to radiator pump; or through the discharge pipe, the water blowing with the mouth, the radiator pressure increases, such as radiator leaking, water moves from the exudation. Mark and in Water Leakage.
(3) repair of radiator:
Baotou beiben heavy truck parts water room, damaged should be replaced, and the radiating core core correction, clear, complete removal of the upper and lower chamber and dirt within the core, and then the water room, according to the requirements of welding.
As mentioned above, the water chamber or the outer core can be leaky, soldering welding. If the inner pipe leakage, the outer fins cut, with sharp iron repair welding. Serious damage, allow individual pipe flattening (but not more than 3 root). After the restoration of the core application by checking the number of tube cleaners do not pass, shall not exceed 5% of the number of all the core pipe.
The inlet and outlet of the leaking water switch should be replaced, remove or replace grinding Water Leakage.
Repair cracks with radiator plugging agent. The radiator should be tested again after repair. During the test, the radiator will be put into the water, with 29 ~ 49kPa of compressed air to flush, if the 1min does not leak, then qualified. Radiator water capacity shall not be less than 98% of the original factory.