The main failure of the mechanical part of the electric hammer is no impact and weak impact. The main reason for no impact is the aging of the rubber rings on the piston and the hammer. Put the big cylinder upright with the mouth facing down. If the hammer can fall freely, then The rubber ring must be old. When the rubber ring is aging, you can hear the sound of the piston and the ram colliding with each other. After disassembling the machine, you can find that the end face of the piston and the ram is bright, and the impact seed is short, which can also cause no impact (can be combined with Compare the new shock seeds)
No oil can also cause shock weakness. If the above conditions are normal and there is no impact, then you must carefully observe the large cylinder to see if there are cracks, and those with cracks need to be replaced.
If the motor rotates after the power is turned on, and the hammer head does not hear the sound of compression, it may be that the connecting rod is broken or the eccentric wheel is broken. If the motor rotates after starting up, the hammer head does not rotate and there is no compression sound, it may be that the primary wheel is damaged or the shaft of the rotor is broken. Then there is the bad bevel tooth, which is shown as being unable to turn in or not turning at all.
There is another phenomenon, please pay attention, that is, the key is broken. When we check the fit of the gear and the shaft, due to the strong friction between the shaft and the gear glue, it is not easy to find the broken key, but it cannot work normally after the load is applied.
Before replacing the new parts, be sure to clean up the dirt and oil in the fault point so that we can find other faults.
The needle roller bearing in the middle cover must be used properly. If it is used as a defective product, if it is damaged, the first-stage wheel and the shaft of the rotor can be easily damaged.
