1. The pressure of the hydraulic system should meet the requirements of the manual and should not be adjusted at will. The quality and quantity of hydraulic oil shall meet the original requirements.
2. Drain the remaining water and debris in the mixing drum before loading the concrete mixer truck. 3. During the winter construction, the following operations should be carried out: check whether there is ice before starting; when stopping, carefully remove the residual water in the mixing drum and water supply system, turn off the water pump switch, and put the control handle in the "stop" position.
4. After unloading at the construction site, the feeding hopper, discharging hopper and discharging chute shall be washed immediately with the hose attached to the small mixer truck to remove the sludge and concrete attached to the car body.
5. After working every day, the driver should be responsible for pouring clean water into the mixing bucket, and then draining the water to ensure that the inside of the bucket is clean.
6. When cleaning the dirt and residual concrete slag inside and outside the mixing drum, and when the technician enters the mixing drum for maintenance and welding repair, the vehicle engine must be turned off to completely stop the mixing drum. When the mechanic enters the work, he must ensure that the mixing gun is well ventilated, the air is fresh, there is no possible gas and harmful dust, and the oxygen supply is sufficient (pure oxygen is not allowed). When using electric tools in the barrel, the operator must have good insulation protection.
7. When working, do not put your hand into the rotating mixing bucket. It is strictly forbidden to put your hand into the connecting part of the main discharge chute and the extended discharge chute, so as to avoid accidents.
8. The abrasion of mixing blade should be checked regularly and repaired and replaced in time.
9. Implement various relevant safety operation procedures. The driver of small mixer must be trained professionally, and people without certificate are not allowed to work.