Maintain the cleanliness of the concrete mixer body and remove the dirt and obstructions on the body. Check the oil at each lubrication place and the circuit and control equipment, and refill the lubricant as required. Before working in each shift, add water in the mixing drum to idle for 1 to 2 minutes, and check the reliability of the working of clutch and brake device at the same time. During the operation of concrete mixer, you should always check whether the noise of motor, reducer and transmission gear is normal and whether the temperature rise is too high. After each shift, the concrete mixer should be carefully cleaned.
The first level of maintenance of concrete mixer of drag pump
Concrete mixer generally work 100h after the first level of maintenance.
1.concrete mixer in the first level of maintenance, in addition to including the work of daily maintenance, but also need to disassemble the clutch, check and adjust the brake gap, such as the clutch inside and outside the brake belt wear too much to replace. In addition, it is also necessary to check the steel wire rope, V-belt sliding bearing, water distribution system and walking wheels, etc.
2.Forced concrete mixer in the first level of maintenance, should check and adjust the gap between the mixing blade and scraper and liner, the sealing and flexibility of the loading hopper and discharge door, the degree of wear of the clutch level water distribution system algorithm normal.
3.The concrete mixer with chain rotation should check the elongation of chain pitch
The second level maintenance of concrete mixer with drag pump
Concrete mixer secondary maintenance cycle is generally 700 ~ 1500h working hours, secondary maintenance, in addition to the first level of maintenance work, to disassemble and check the reducer, motor and open gear, etc., in addition to check the machine and the manipulation mechanism of the discharge, cleaning the walking wheel and steering mechanism, etc.
1.When disassembling and inspecting the reducer, clean the gear, shaft, shaft vomit and oil channel, check the abrasion degree of the surface of the halogen profile, and fill the new gear oil after disassembling and inspecting.
2.When disassembling and inspecting the motor, clean the dust on the stator winding, clean the bearing and fill with new lubricating grease, check and adjust the clearance between the stator and rotor.
3.When disassembling and inspecting the open gear, it is necessary to clean the gear tooth profile, circumference and bearing, check the wear and tear, and replace it when it is excessively worn.
4.Loading clutch inside and outside the brake belt, such as excessive wear should be replaced in a timely manner.
5.Concrete mixer frame distortion deformation occurs, should be repaired or corrected.
6.When dismantling and inspecting the water measuring device, set the position of the casing, clear the rust around the suction pipe and casing and the inner lever and brush on the anti-rust paint.
7.When dismantling and inspecting the three-way valve, remove the rust and scale near the valve cavity and pipe interface to keep the waterway open.
8.For the unique institutions, such as rubber pallets, travel switches, water meters, solenoid valves, etc., can be regularly checked and adjusted and cleaned according to the situation.
