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Anonymous users2024-01-24Remove the cylinder mouth clamp and push the plug inward, you can take out the sealing iron, and then directly pull the cylinder core with external force, and then disassemble it.
Connect three live wires (three-phase 380V) directly at the other end of the switch, if there is a grounding wire at the power supply, connect the grounding wire to the motor casing. >>>More
If the tower crane has been raised.
An oil change pump is certainly dangerous. >>>More
The hydraulic device, equivalent to a large jack, uses the hydraulic pump to pressurize, transmits the pressure to the oil top through the oil cylinder, the oil top valve stem stretches out, the gold beam resists the standard section climbing claw, stretches to the maximum, inserts the stability from the sleeve hole, blocks the climbing claw, the valve stem retreats into the next cycle, when jacking up a section, pulling in the standard section, tightening the screw, and so on.
1. When the jacking height is about 15 cm, I am most afraid of sliding cylinders and bursts at this time. The correct way is to stop when lifting 5 to 10 cm, descend to the original position, and repeat this 3 times to confirm that it can stop and not slide, and the pressure gauge pointer reading is normal, and then start to officially jack. >>>More
It should be determined according to the number of manufacturers' design requirements, and the tower crane models, design requirements, and the height of the standard section of different manufacturers are not the same, so there is no standard answer. Hint: Be sure not to go higher than the height required by the manufacturer.