concrete pump operation

(1) can be towed concrete pump line using the motor vehicle towed, but not carrying any cargo, towing speed must not exceed 8km / h;
(2) concrete pump hydraulic system pressure relief valve shall comply with specification requirements, the user can not adjust to change;
(3) In the cold season construction concrete pumps have freezing measures;
(4) In the hot season, construction, concrete pump to prevent the oil temperature is too high. When the temperature reaches 70 ℃, should stop running or take other measures to cool down;
(5) pumping concrete is completed, should be promptly put the hopper, S valves, concrete cylinders, transmission lines clean. After washing pump, accumulator pressure should be released, switch off the power switch is in the stop or the open position;
(6) Precast concrete plant shall not climb or ride in the pipeline, in the high-altitude operations should definitely be avoided;
(7) After pumping concrete cleaning Previously, a number of anti-pump stroke to reduce pressure inside the pipeline to avoid accidents;
(8) Ready mix concrete plant safety and accident prevention should be set up devices. Such as: instructions and warning signs, fences, metal baffles, etc., while the pump is set up around the work area must (not less than 1 meter), non-operators prohibition of unauthorized trespassing. Regular replacement within three meters away from the operator's transmission pipeline, to be fastened with wood or metal partition screen protection;