Three points that require special attention during welding and maintenance of concrete mixers

Check whether there is any foreign matter in the concrete mixer tank. If the mixing blade is damaged, it should be replaced immediately. Check whether the upper and lower limits of hopper lifting and the limit limit are installed securely. Manually lift the hopper to check whether the hopper runs smoothly and whether the lower limit K is reliable.

Before starting the concrete mixer for production for the first time, you should manually check whether the discharge door switch of the powder scale and the mixer discharge door is flexible and reliable. Observe whether the corresponding indicator lights on the operation panel are "on and off" normally. Check whether the two magnetic switch indicator lights on the cylinder block screws are working properly.

Before starting the production of concrete mixer, please note: the locking nut between the cylinder piston rod and the connecting body should be connected properly and not loose to prevent the piston stroke from not being in place, resulting in the limit signal not being sent normally. The cylinder stroke of the powder scale should be adjusted so that the valve plate of the material gate is at an angle of 6-7 with the horizontal, so as to prevent leakage of powder. When the stroke determines that the cylinder piston is fully extended or fully retracted, the indicator light must be on. If the indicator light does not light up when the cylinder is extended or retracted, you can adjust the position of the indicator light along the screw.

When welding the concrete mixer, ensure that the ground wire of the welding machine is in firm contact with the welding part and place the ground wire outside the weldment. Completely isolate the sensor with insulation material. Disconnect the connection between the sensor and the control system.

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