1. Often check whether the gearbox oil level of commercial concrete cement mixer truck is normal. The inspection method of the automatic gearbox oil of the commercial concrete cement mixer truck is different from that of the engine oil. The engine oil should be inspected in the cold condition, while the gearbox oil of the commercial concrete cement mixer truck needs to be preheated to about 50 ℃, and then the gear lever should stay in each gear for 2 seconds and then be placed in the parking gear. At this moment, the normal oil level of the oil dipstick should be between the highest and lowest line, If not, add oil of the same quality in time.
2. Grasp the period of replacing the gearbox oil of commercial concrete cement mixer truck. The internal control organization of the automatic gearbox of the commercial concrete cement mixer truck is very fine and the cooperation gap is small, so most manufacturers advocate that the oil change period of the automatic gearbox of the commercial concrete cement mixer truck is usually two years or 40000-60000 km. In the process of normal operation, the working temperature of gearbox oil of commercial concrete cement mixer truck is usually about 120 ℃, so the quality demand of oil is very high, and it is necessary to keep it clean.
Secondly, the gearbox oil of commercial concrete cement mixer truck will produce oil dirt after a long time of use, which may form oil sludge, increase the wear of friction plates and components, and also affect the system oil pressure, so that the power transmission is affected. Third, the sludge in the dirty oil will make the movement of the valve body in each valve body blocked, and the oil pressure control will be affected, so that the automatic gearbox of the commercial concrete cement mixer truck will be abnormal.
3. Replace the transmission oil correctly. At present, the better oil change method is dynamic oil change. Special gearbox cleaning equipment is selected. In the process of gearbox operation, the old oil is fully circulated, and the new gearbox oil is added after the discharge is clean, so that the oil change rate is more than 90, and the outstanding oil change effect is ensured. The driver of the commercial concrete cement mixer truck should cultivate the knowledge of automatic inspection, protection and maintenance, be able to learn some basic knowledge of protection and maintenance of the commercial concrete cement mixer truck, carefully read the operation instructions with the truck, and remember some necessary data. Scientific car maintenance can ensure that the commercial concrete cement mixer truck is in an outstanding technical condition and ensure driving safety.
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