1、 Before operation, check whether the rotation of the mixer is good, the safety device and protection device should be firm and reliable, and the operation is flexible.
2、 After the concrete mixer is started, it will run through the empty machine, check whether the direction of mixing blade is correct, add water first and then add material for mixing operation.
3、 During the operation of the mixer, it is not allowed to put hands or sticks into the mixer tank or clean the ash and slurry at the mixing tank mouth.
4、 During operation, observe the operation of the machine. In case of abnormal or high bearing temperature rise, the machine shall be shut down for inspection; in case of failure during operation and maintenance is required, the power supply shall be cut off first, and the ash and slurry in the mixing tank shall be poured out for maintenance and troubleshooting. Do not use tools to pry and other dangerous methods to force mechanical operation.
5、 The clearance between the mixing blade of the mixer, the lower part of the mixing tank and the side wall shall be checked and confirmed to meet the requirements. When the clearance exceeds the standard, it shall be adjusted in time. When the mixing blade wear exceeds the standard, it should be repaired or replaced in time.
6、 After the operation, clean the inside and outside of the concrete mixer and clean up the surrounding area of the mixer. Cut off the power supply, lock the mixer switch and hang the power-off sign. When repairing the mixer, the switch should be hung with the sign of "under maintenance, no power transmission", and special personnel should be assigned to monitor it.
7、 The parking position of the mixer shall be flat and solid, and the mixer shall be installed stably and firmly.
8、 During the operation of the mixer, water should be added at the same time. It is not allowed to start the mixer after adding material. The feeding should not exceed the rated capacity. When feeding, the tools shall not collide with the mixer, and the tools shall not be extended into the mixer to pick up materials during operation.
9、 The hopper of the mixer can't be filled with sundries, and the machine must be shut down to remove the impurities.
10、 After work, the mixer shall be cleaned, and the rotating part shall be filled with lubricating oil, and the motor and electrical appliances shall not be affected by moisture during cleaning.