A, pump truck in place level off solid, no obstacles around. Pump trucks are not allowed to stop on slopes. The parking position meets the needs of pouring, does not interfere with other on-site machinery, and affects the construction progress and the safety of construction personnel.
Second, after the pump truck is in place, set up the legs to keep the fuselage level and stable. When the boom is used for feeding, the inclination of the fuselage should not be greater than 3.
Third, when in place, the pump truck should turn on the stop light to avoid collision.
Four, check the project before operation meet the following requirements:
1. Fuel, lubricating oil, hydraulic oil and water tank shall be fully filled, tire pressure shall conform to regulations, and lighting and signal indicator lamps shall be complete and good;
2. The hydraulic system works normally, and the pipeline has no leakage; Clean water pump and equipment are complete and good;
3. There is no sundries in the mixing hopper, and the protective net on the hopper is intact and tightly covered;
4. The pipeline is firmly connected and well sealed.
5. Pipes and hoses used for water distribution pipes shall not be used with a diameter exceeding the specified diameter, and the connected hoses shall be fastened with safety belts.
Six, telescopic boom should be carried out in accordance with the order of the factory instructions, boom lifted from the bracket rear can rotate. It is forbidden to use the derrick to lift or drag objects. When pouring concrete, be careful not to collide with the drilling rig and gantry crane.
Seven, when the boom is in a fully extended state, shall not move the body. When it is necessary to move the car body during operation, the lifting arm should be folded and fixed, and the moving speed should not exceed10 km/h. ..
Eight, in the process of work, pay attention to the command of the perfusion point staff, and suspend or start the perfusion operation in time.
Nine, do not drag the front hose of the boom on the ground; It is forbidden to extend distribution pipes and suspenders. When the wind reaches level 6 and above, the placing boom shall not be used to transport concrete.
Ten, before pumping, when the hydraulic oil temperature is lower than 65438 05℃, use the method of extending the idling time to improve the oil temperature.
Eleven, pumping, should check the operation of the pump and mixing device, monitoring instruments and signal instructions, found abnormal stop processing in time.
Twelve, the concrete in the hopper should be kept above the center line of the mixing shaft.
Thirteen, pumping concrete should be continuous operation. When it is forced to stop due to the interruption of feeding, the mixing barrel stores a part of concrete and pumps a part of concrete regularly to prevent the concrete in the pipe from segregation or solidification. After the delivery truck arrives again, the pouring operation will continue.
14. During the operation, the grating in the hopper shall not be removed, and the unqualified aggregate or sundries shall be cleared in time.
Fifteen, found in the process of pumping pressure gauge reaches the highest value, when the running sound changes, should immediately stop pumping, and use the method of reverse operation to eliminate pipeline blockage; When it is invalid, take out the test tube and clean it.
16. After the operation, export all the concrete in the pipeline and hopper, and then flush the hopper and pipeline. When cleaning the pipeline with compressed air, it is forbidden to stand in front of the pipeline outlet 10m.
17. After operation, it is forbidden to flush the pipe of the placing boom with compressed air, and the folding and contraction of the placing boom should be carried out in the specified order.
Eighteen, after the operation, reset all parts of the control switch, adjust the handle, handwheel, operating lever, cock, etc. , hydraulic system.