Hydraulic hammer, as one of the most common accessories of construction machinery, has been widely used in mining, railway, highway, municipal and other work occasions. As we all know, hydraulic hammer in the daily work is bitten by "hard bone" bad working environment, master the correct use of hammer, not only can improve work efficiency, but also greatly extend the service life and reduce the frequency of failure. I. Selection and Matching of Crushing Hammer First of all, starting from the selection of crushing hammer, in general, the user chooses crushing hammer mainly to consider the matching of the hammer and the working weight of the loader. Here I remind you that choosing the crushing hammer should not only match the working weight, but also pay attention to the matching of output flow and pressure of the spare valve of the hydraulic hammer. Generally speaking, the flow rate of hydraulic hammer determines its working efficiency (that is, the number of impacts per minute is proportional to the number of impacts). If the flow rate and working pressure of the loader are greater than the demand of the hydraulic hammer, the relief valve needs to undertake heavy diversion and unloading work. When the crushing hammer works under ultra-high pressure, it will cause pipeline bursting, local overheating of hydraulic oil, and serious wear and tear of the reversing valve, seriously affecting the service life of hydraulic components.  

II. Use of Crushing Hammer

1. Appearance inspection before crushing hammer operation
Check the gap between the drill rod and its bushing and see if there is any hydraulic oil leakage. Once hydraulic oil leakage is found in the crushing hammer, the damaged sealing ring should be replaced immediately. And check  whether the relevant bolts are loose or falling off. If necessary, tighten or replace them.

2. Lubrication before/during crushing hammer operation Crushing hammer should be lubricated before operation and within 2 to 3 hours of continuous operation. When butter is beaten, the hammer should be placed vertically. The fibre rod should be compacted and not suspended,  so that butter can not enter the hydraulic system. It should be noted that butter should not be injected too much.  Too much butter will stick to the piston. Butter will easily enter the hydraulic system when it is re-operated.