Turn off the main power supply of the automatic feeding concrete mixer, and assign a special person to watch, check and remove the residual dirt on the concrete inside and outside the mixer (carried out by the operator).

检查所有搅拌刀、叶片臂的缩紧螺栓有无松动，检查搅拌刀、叶片与衬板的间隙（2mm），大于4mm时必须进行调整。

Check whether the tightening bolts of all mixing knives and blade arms are loose, and check the gap (2mm) between mixing knives, blades and lining plate. If it is greater than 4mm, it must be adjusted.

检查、加添，减速箱、卸料闸门油泵、搅拌轴轴头油位，监视镜内的油位要多于1/2。给各部位加注润滑脂。

Check and add the oil level of reduction gearbox, discharge gate, oil pump and mixing shaft head, and the oil level in the monitoring mirror shall be more than 1 / 2. Fill all parts with grease.

检查气路系统，空压机机油、阀、压力表。排放气水分离器积水。气路系统应无漏气漏油现象。

Check the air circuit system, air compressor oil, safety valve and pressure gauge. Drain the accumulated water in the gas-water separator. The gas circuit system shall be free of air and oil leakage.

检查调整皮带输送机各部位联接紧固螺栓、托棍，清扫器工作是否正常，皮带有无蛇形和跑偏现象。

Check and adjust whether the connecting fastening bolts, supporting rods and sweepers at all parts of the belt conveyor work normally, and whether the belt has snake shape and deviation.

检查水路、外加剂管路有无渗漏现象，电机及泵工作是否正常。

Check whether the water circuit and admixture pipeline have leakage, and whether the motor and pump work normally.

检查螺旋输送机工作状况，加添齿轮油、润滑脂。

Check the working condition of screw conveyor and add gear oil and grease.

检查骨料计量秤电磁阀、气缸及出料门工作是否正常，加注润滑脂。

Check whether the solenoid valve, cylinder and discharge door of aggregate metering scale work normally, and add grease.

机修工要积极配合辅工进行主机清理作业。

The mechanic shall actively cooperate with the auxiliary workers to clean the main engine.

机修工接到辅工清理作业检查验收通知后，要立即进机检查验收，不得借故推托。

After receiving the inspection and acceptance notice of auxiliary workers' cleaning operation, the mechanic shall immediately enter the machine for inspection and acceptance without any excuse.

检查验收要认真、彻底、不留死角。验收不合格，要告知辅工或搅拌站长，不合格的部位和存在的问题，待重新清理后，再次检查验收。

The inspection and acceptance shall be serious, thorough and free of dead corners. If the acceptance is unqualified, inform the auxiliary workers or the head of the mixing plant that the unqualified parts and existing problems shall be inspected and accepted again after re cleaning.

机修工检查、验收时要认真检查衬板有无破裂，刀、臂有无损伤和松动。并在记录表上签字确认，备查。

During inspection and acceptance, the mechanic shall carefully check whether the lining plate is broken and whether the knife and arm are damaged and loose. And sign on the record sheet for confirmation for future reference.

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