(5) During the process of pouring concrete, the hose at the arm end of the concrete distributor is not allowed to bend. It is not allowed to knock the concrete delivery pipe, and it is not allowed to loosen any pipe joint clamps.
(6) Workers should use escalators, platforms and attached pedals to get on and off the distribution machine. Escalators, platforms, and treads must be kept clean and smooth, and free of oil, ice, snow, water, and obstacles.
(7) Any abnormality discovered by the operator when using the concrete placing boom should be reported to the management staff in a timely manner and recorded.