How to perform safety operation of excavator hammer

 In the use of hydraulic excavators, the hammer is one of the more common tools, and it is one of the accessory parts that excavators often cooperate with. Generally used in the following conditions: first, the broken road, demolition of houses, bridges, mines broken stone etc..

About excavator hammer, how to carry out safe operation, today Xiaobian to give you a detailed introduction.

1 read the operation manual of hydraulic breaker carefully before operation to prevent damage to hydraulic breaker and excavator and operate effectively.

2. Check whether the bolts and connectors are loose before operation and whether there is any leakage in the hydraulic line.

3. Don't pick holes in hard rock with hydraulic breakers. When hitting a hard rock, strike at the same spot for less than a minute. Long time hitting operation caused by the temperature, which causes the steel liner damage and steel wear progress. Long, hard stones can begin to crumble at or at the end of their cracks, making it relatively easier to smash rocks.

4. Do not operate the crusher when the piston rod of the hydraulic cylinder is fully extended or fully shrunk. When the cylinder rod is fully extended or retracted, that is, when the cylinder stroke is the largest, the gravel will damage the parts of the oil cylinder and excavator and loader.

5, stone once smashed, should immediately stop hammering. The bolt will loosen or break even when the air strikes, and even the excavator and loader will be affected. When the hammer or the improper breakdown voltage is used as a drill rod, will produce air hammer. (break hammer, air hammer, hammer, sound will change)

6, when the hydraulic hose appears intense vibration, should stop the crusher operation, and check the accumulator pressure. Check whether the high and low pressure hose of excavator hammer is vibrating too violently. If there is such a situation, it may be out of order and should be checked and maintained immediately. And further check whether the hose connection oil seepage, if there is oil seepage, should be re tightened joint. During the operation, whether the steel shall be visually allowance, if no allowance must be stuck in the lower body, remove the body, check whether parts shall repair or replace the defective parts.

7. Do not break the crusher into the water except the bit. Do not use crushing hammers in water or mud. Otherwise, pistons or similar components may rust and cause permanent damage. If you need to work underwater or underwater, you should order an underwater hammer.

8, broken hammer can not be used to move stones. Can not use steel or Switzerland at the end side of the bracket to rolling or pushing stones. Because the oil pressure comes from the excavator, loader, big arm, small arm. The bucket, swing or sliding operation, so the size of the arm will be damaged, and hammer bolts may be broken, the scaffold steel damage, break or scratch, should avoid using hammer to move stones. In particular, the drill rod inserted in rocks, mining do not walk.

9. Do not operate the crusher on the side of the excavator track.

10, the excavator can not be broken, hammer directly fall to smash the stones. If the hammer of the excavator falls directly to the crushed stone, the crushing hammer or excavator will bear too much force, so that it will damage the excavator and loader parts.

11, hydraulic breaker and hydraulic excavators and other engineering construction machinery installation and connection, the host hydraulic system pressure and flow of work must comply with the technical parameters of the hydraulic breaker, hydraulic breaker "P" port and the main high-voltage circuit connection, the oil outlet and the main machine is connected to the O. ".

12. The optimum hydraulic oil temperature at the hydraulic breaker is 50-60 degrees centigrade, and the maximum temperature shall not exceed 80 degrees centigrade. Otherwise, the load on the hydraulic breaker should be reduced.

13. The working medium used in the hydraulic breaker can be in accordance with the hydraulic system of the main engine.

Between the 14 and the drill shank and the cylinder guide sleeve must use calcium base lubricating oil or lubricating oil with calcium based grease (MoS2), and each class with a.

15, the use of hydraulic hammer and drill rod should be perpendicular to the work surface, so as not to produce radial force as the principle.

16, hydraulic crusher to long-term use stop, should put all nitrogen, and the inlet and outlet sealing, don't in high temperature and -20 degrees Celsius environment storage. In winter, the engine should be preheated for 5 to 20 minutes, and it will be broken at low temperatures. This will easily damage all parts of the excavator hammer, such as pistons, seals and so on.