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Orange Single Hole Hydraulic Nose Jack
Technical performance parameters
NO. | Product number | DY30-25B |
1 | Nominal top pressure | 30KN |
2 | Nominal oil pressure | 34Mpa |
3 | Top pressure piston area | 0.833×10-3m2 |
4 | Tension stroke | 25mm |
6 | Overall dimensions | Ø62×160mm |
7 | Through hole diameter | Ø20 |
8 | Weight | 2.8kg |
Instructions
1. Preparation
(1) Check whether the operating condition of the hydraulic oil pump is normal and whether the hydraulic oil circuit installed with the jack is correct.
(2) Check whether the piston of the pusher expands normally and vents smoothly.
2. Installation of the top press
(1) Connect the top pressure device to the hydraulic oil pump, and the joints are connected with external leakage.
(2) Lift the jack and use the plum blossom head end to penetrate along the prestressed ribs to the working anchor plate, and then install the YDCQ250 single-hole tension jack behind the sealing plate for tensioning.
3. Tensioning operation process
At the same time, the throttle valve of the oil pump is constantly adjusted to control the tensioning speed and stabilize the oil pressure. When the required pre-stress value is reached, the nozzle is supplied to the oil inlet of the ejector, the top of the pressing piston is pressed against the clip, and when the design top pressure is reached, the oil cavity is unloaded by tensioning, and oil is supplied to the return oil cavity. The piston returns. If the anchor is fixed, the tension is completed, and the pressing piston is reset by the spring after the ejector is unloaded.
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