What matters should be paid attention to when operating a hydraulic acrow props, let me know with the editor below.
1. The hydraulic acrow props must meet the factory test requirements or maintenance quality standards before it can be used in the well. The new pillars arriving at the mine must also be checked and retested before they can be used in the mine.
2. Check whether the mechanical and electrical parts of the emulsion pump are normal, whether the emulsion in the fuel tank is sufficient, and whether the concentration is appropriate, then start the emulsion pump, and wait until all parts of the pump are running normally and the supply pressure reaches the rated working pressure of the pump station before supplying to the working surface liquid.
3. After moving the suspension hydraulic prop to the predetermined support location, first flush the oil injection valve body with a liquid injection gun, and then insert the liquid injection gun into the three-way valve and connect it with a locking sleeve.
4. When the suspension hydraulic prop is used for the first time, the pillar should be raised and lowered once (maximum stroke) to drain the air in the cylinder before it can be used normally. When the pillar in use, the lift of the live pillar is lower than the minimum safe return pillar height, it should be sprinkled back in time to avoid being crushed into a "dead pillar".
5. It is absolutely forbidden to hit any part of the hydraulic acrow props with hammers, pickaxes and other metal objects to avoid damage to the pillars. In case the pillars are crushed into "dead pillars", they can only be taken out by top-lifting or undercover methods, and blasting, hammering or winch pulling is not allowed.
6. During the supporting process, the handle of the suspension hydraulic prop is not allowed to be used as the jack fulcrum to avoid damage to the pillar.
7. When returning to the column, strictly abide by the relevant safe operation rules for the column return to ensure safe production.
8. The retracted pillars should be placed vertically with the top cover facing up. Do not place it horizontally anywhere to prevent water and coal powder from entering the inner cavity of the pillar and the rusty surface. No suspension hydraulic prop without three-purpose valves are allowed downhole. If the three-way valve is damaged, install the replaced three-way valve in time.
9. Due to the large amount of dust in the work, apart from replacing the top cover and the three-purpose valve, other parts are not allowed to be disassembled on the working surface.
The operation precautions of the above suspension hydraulic prop are hoped to be useful to everyone. If you want to know more product knowledge, please pay attention to our official website：http://hydraulicprops.com/
