how to use the chain block to replace the new boom cylinder grease seal?

　　Firstly: professional famous brands excavator segment bolt production supplier said consumers should use two pieces of steel wire rope to right cross over the boom cylinder and boom part, then use the two steel hook on the edge of chain block to tighten the steel wire rope, but remember remove all of the pin part from the head part of boom cylinder piston shaft, both of the inlet and outlet oil pipeline must be teared down at the same time, then loose the chain block but put the boom cylinder on the flat foundation place.

　　Secondly: famous brands excavator segment bolt production supplier suggests excavator users use the jump ring pliers to take down the lock ring from the cylinder head, but use one copper rod to slight tap the guide sleeve, the purpose is guarantee there has leave a certain distance in the inner space of cylinder body, but guarantee both of the baffle ring and lock key can be direct saw by our eyes, then pick out both of the baffle ring and lock key, and professional famous brands excavator segment bolt supplier said the last step is use special manufacturing rubber stick to full of the lock key groove.