The equipment management department should pay attention to the inspection, maintenance and repair of small concrete mixer truck, organize the equipment management personnel to inspect all concrete mixer trucks at least once or twice a month, evaluate the service condition of concrete mixer truck, and arrange the maintenance, inspection and repair of concrete mixer truck according to the service condition of concrete mixer truck and the accumulated time of reference equipment Maintenance, repair and anticorrosion. Through the management, the small concrete mixer can achieve the effect of low cost, long life and high efficiency, and meet the requirements of concrete transportation.
For the maintenance of small concrete mixer, the following standards should be met in the following aspects:
1. Water supply system: the water pumps and components of the water supply system are complete and without leakage.
2. Engine: no abnormal operation, normal oil pressure and water temperature, proper belt tightness, clean and effective filter.
3. Braking system: the hand and foot braking is sensitive and effective, without deviation, and the stamping, dragging and pedal stroke meet the requirements.
4. Lighting system: all kinds of instruments are complete, indicating data is accurate, indicating lights are complete, sound and light signal and alarm system are complete and effective.
5. Mixing system: the cylinder is in good contact with the supporting roller without deviation. There is no serious wear and deformation of mixing drum blades. There is no serious material accumulation in the cylinder and outlet.
6. Lubrication system: the lubricating system and device are complete and in good condition, the oil path is smooth, the lubricating parts are fully lubricated, and the lubricating oil model, oil quantity and oil quality meet the requirements.
7. Electrical system: the line of the whole vehicle is complete, and the fixing of the connecting card meets the requirements. The battery is clean and fixed firmly, and the electrolytic liquid level meets the requirements (the liquid level is 1 ~ 1.5cm higher than the plate).
8. Steering system: the free steering amount of steering wheel is not more than 30 degrees, the power steering device is sensitive and effective, the steering knuckle, arm and steering tie rod are not damaged, and the ball pin is not loose.
9. Hydraulic system: the oil pump and motor work normally, and the pressure reaches the rated value. The model, quantity and quality of hydraulic oil meet the requirements, the oil temperature is not more than 80 ℃, and the oil pipe is well connected without leakage.
10. Requirements of the whole machine: no deformation, desoldering and cracking of the whole vehicle structure, no loosening of bolts, complete assemblies, parts and accessories. The main performance reaches the rated index. The whole vehicle is clean and free of concrete accumulation.