How to operate BW250 grouting machine safely? What are the precautions for using BW250 grouting machine? The service life of the BW250 grouting machine is not only related to the structure and material of the grouting machine, but also has a great relationship with the use conditions, operation and maintenance. Zhongke grouting machine manufacturers analyze in detail the safety operation rules and precautions of BW250 grouting machine.
1. Installation of BW250 grouting machine:
BW250 grouting machine must be installed on concrete or solid foundation and fixed with anchor screws. During installation, the parallelism of the power machine or intermediate shaft and the pulley of the BW250 grouting machine and the position of the transmission belt must be checked with a measuring line to ensure that they are on the same plane, and then the anchor screws are tightened.
2. Preparation before starting BW250 grouting machine:
When the BW250 grouting machine is used for the first time and after a long period of shelving and re-use or re-installation, the following preparations must be carried out before starting to use:
(1) Check and flush the water inlet hose and water filter valve. The water inlet hole should not be blocked by dirt. The valve should open and close freely. The hose joint should be tightly tightened with a hose clamp to ensure that the seal is not leaking.
(2) Check the tightening of various components and parts, especially the connection between the round nut, crown nut, cross head and tie rod on the piston.
(3) Check whether the inlet and drain valves and seats are in good condition.
(4) Check the connection gap between the connecting rod bearing bush, the cross head pin shaft and the cross head and cross head sliding sleeve.
(5) Check if there is enough lubricating oil in the bearing and pump body, and add oil once in all oil cups.
(6) Check whether the safety valve and pressure gauge are malfunctioning.
(7) Check whether the clutch and shift mechanism are in good condition.
(8) Open the water inlet valve of any cylinder of the pump head, pour water into the water inlet pipe, and be sure to fill it up.
(9) Open the return valve of the three-way water gate.
(10) Turn the pulley several times by hand to observe whether the rotation is flexible and whether there are other debris inside.
(11) Check the tightness of the V-belt and adjust it to the proper tightness.
(12) Check the sealing of each part of the seal, if any leakage is found, replace the seal immediately to ensure that there is no leakage.
(13) Check that the water absorption height should not exceed 2.5 meters, and the length of the water suction pipe should not exceed 5 meters
3. Start of BW250 grouting machine:
(1) Move the clutch clutch handle upward so that the pulley is in the idle position.
(2) When starting the power machine, it should be ensured that the pulley rotates in the direction indicated by the arrow of the shield (that is, it rotates counterclockwise when facing the clutch handle).
(3) After opening the return valve of the three-way water gate, the clutch is engaged, that is, the BW250 grouting machine is started smoothly and without pressure.
(4) After checking that the pump works normally according to the return water flow, the return valve of the three-way water gate can be closed one by one, and the medium is output by the drain pipe.
4. BW250 grouting machine shutdown:
(1) Turn the three-way valve to the return water position to unload it, and then stop working.
(2) When the pump is stopped for a long time in the cold season. Clean the pump head and pipeline with clean water, and then drain the pump head, hose and other pipelines.
(3) When the pump is stopped for a long time, all the water and oil in the pump must be discharged, the mud and sand on each part should be cleaned, and the following parts should be coated with grease: crankshaft journal, gear, cross head, cross head sliding sleeve, cross Head pin, tie rod, cylinder liner, cylinder top liner, cylinder head, valve cover, steel ball and valve and spring in safety valve.
5. Precautions for safe operation of BW250 grouting machine:
The normal operation of the BW250 grouting machine plays a great role in drilling efficiency. It can increase the drilling speed and pure drilling time, keep the hole clean, and reduce the collapse of the hole wall and the stuck drill accident to a minimum. Therefore, the maintenance of the BW250 grouting machine during work should be given sufficient attention. The premature damage of the pump head components is caused by the use of a flushing fluid containing a large amount of sand to cause the cylinder liner, piston, valve seat and ball valve to wear. Therefore, all measures must be taken to ensure that the discharged flushing liquid does not contain sand or is controlled within the allowable range. When adding sand into the borehole, the returned flushing fluid should be blocked and filtered, and it is best to set up special machinery for removing sand. Because there are many moving parts in the pump body, if the lubrication is poor, or the lubricant contains impurities, it is often the cause of the failure of the BW250 grouting machine. In order to ensure the normal operation of the pump, the following must be noted:
(1) Pay attention to check the lubrication of the moving parts of the BW250 grouting machine, add oil to the pump body in time, and change the oil. When changing the oil, use the specified grade of pure and impurity-free lubricating oil.
(2) During normal operation, the pressure shall not exceed 80% of the rated pressure, and the continuous time at the highest pressure shall not exceed 1 hour, and the reliability of the safety valve shall be checked.
(3) The input speed must not exceed 500 rpm.
(4 There should be no impact when the grouting machine is running.
(5) Cylinder liner and piston must be kept tight at all times, with proper tightness, and no flushing fluid should be leaked. If a leak is found, immediately tighten nut M30 * 1.5GB1007-67, or replace with a new piston.
(6) The pulley must be in the idling position when changing speed, and never change speed during operation.
(7) Be careful not to drop oil or mud onto the friction clutch disc. There should be no slippage between the friction plate and the pressure disc during coupling, and there must be no friction when disengaged to maintain the normal working condition of the clutch.
(8) Pay attention to the installation position of the suction pipe and the tightness of the combination to prevent the formation of air bladders and suction of air, otherwise reducing the volumetric efficiency of the pump.
(9) The water filter is immersed 0.2 meters below the liquid level of the storage tank, and 0.3 meters away from the bottom and four walls of the tank. It is best to put it in the basket, and suspend the basket in the storage tank to prevent sand and debris from entering the record.
(10) Pay attention to the rise and fall of the liquid level in the reservoir. If the liquid level is too low, it should be filled with flushing liquid immediately.
(11) Always keep the BW250 grouting machine clean to prevent the slurry from falling on the pump rest, clutch and other moving parts.
(12) Pay attention to the tension of the transmission belt and adjust it immediately.
The above is the relevant introduction about the safe operation regulations and precautions of BW250 grouting machine. Learn more about grouting machine products, double liquid grouting machine, high pressure grouting machine, cement grouting machine, mortar grouting machine, concrete grouting Consultation on machine details and grouting machine manufacturers, grouting machine price consultation, we will let you achieve the best results with first-class service and high-quality products.
================================================== ================================================== ======
hotline
Sealed Standoffs,Sealed Standoffs,Sealed Studs,Waterproof Fasterner,Water Resistant Studs
Dongguan Tiloo Industrial Co., Ltd , https://www.sales-fastener.com