Pumping Handling Precautions

Pumping Handling Precautions 1. Start the motor, should be Y- △ start the conversion (or soft-start conversion) can only start after the completion of the pumping, so start with a load. 2. stirring blade card refuses to turn, best js2000 china concrete mixer provider should be reversed, if the reverse is still active, indicating concrete pumpability poor. Should stop pumping, stir again pumped to be expected, necessary, to add mortar or concrete inside the hopper release. 3. The pumping process, the material should remain above the agitator shaft, in order to avoid air suction and no material pumping. But the poor performance of pumping concrete, the material inside the hopper should not pretend to be high, should the agitator shaft or less, S tube over. To avoid increasing the stirring resistance, stuck blade. Pumping process should always pay attention to the pressure pumping pressure and agitation. The pumping process, if a longer time-out, to be pumped once every 10-15 minutes or anti-stroke pump 2-3, 2-3 and then n-pump stroke. , Adequate exercise concrete pipes, to prevent clotting. Try not to stop pumping js1500 twin-shaft portable concrete mixer too long, so as not to block the tube, affecting pumping normally. 5. pumping, if the pumping pressure suddenly increased, until 32Mpa, should immediately press the button anti-pump, allow the pump to automatic anti-pump 2-3 strokes, then turn to the pump. If the operation is repeated several times, pumping pressure is still too high (32Mpa), it may be blocking the tube, to suspend pumping, pigging process. 6. The machine dispensing valve system accumulator oil passage, thus inching dispensing valve, each time interval is greater than 5 seconds. Otherwise, due to the pressure accumulator charge is not enough, resulting in the dispensing valve swing is not in place. 7. pumping, duct For longer, should pay attention to only take a maximum of two, and the inner wall of the tube wet with water, as this may produce blocked. 8. Note that the water temperature. When the water temperature over 40, you should change the water, hot water temperature will make the proximity switch malfunction, leading to chaotic pendulum S tube. (Added to the tank 2/3 water and 1/3 to facilitate lubricating oil or hydraulic oil piston) 9. Notice vacuum represents the value must remain within the green zone, otherwise the filter should be cleaned or replaced. After 10 shutdown, it must open the unloading concrete mixer machine js1500 – twin shaft switch (valve) release accumulator pressure, to ensure safety. 11. The end of each pumping or abnormal condition of downtime should be concrete cylinder, hopper, S pipe, duct clean. 12. Note that the hydraulic oil temperature. Under normal circumstances, the oil temperature below 65 ℃, when the oil temperature exceeds 80 ℃, should be down to find out why; the oil temperature reaches 45 ℃ should open the air-cooled.