Excavator and bulldozer hydraulic cylinder removal steps

Xiamen Fortune Industrial Co.,Limited supply excavator and bulldozer hydraulic boom cylinder,lift cylinder,arm cylinder,ram cylinder,stick cylinder,bucket cylinder etc for backhoe Caterpillar,Komatsu,Hitachi,Doosan,Kobelco,JCB,Hyundai,Volvo,Shantui,John Deere,CASE,New Holland,Bobcat,Daewoo,Samsung,Kato,Wheel Loader,Crane,and so on.

Below FT will introduce how to remove excavator hydraulic cylinder to replace and repair

1. Before disassembling the hydraulic cylinder, the hydraulic circuit should be relieved of pressure. Otherwise, when the oil pipe joint connected with the oil cylinder is loosened, the high-pressure oil in the circuit will be sprayed out quickly. When depressurizing the hydraulic circuit, first loosen the handwheel or pressure regulating screw at the relief valve, etc., to unload the pressure oil, and then cut off the power or power source to stop the hydraulic device.

2. During disassembly, prevent damage to the top thread of the piston rod, the thread of the oil port, the surface of the piston rod, and the inner wall of the cylinder liner. In order to prevent the slender parts such as the piston rod from bending or deforming, the stow should be used to support the balance during placement.

3. The disassembly must be carried out in order. As the structure and size of various hydraulic cylinders are not the same, the disassembly sequence is also slightly different. Generally, the oil in the two chambers of the cylinder should be drained, then the cylinder head should be removed, and finally the piston and piston rod should be removed. When disassembling the cylinder head of the hydraulic cylinder, special tools should be used for the key or snap ring of the internal key type connection, and the use of flat shovel is prohibited; the flange type end cap must be pushed out with screws, and hammering or hard prying is not allowed . When the piston and piston rod are difficult to withdraw, they should not be forced out. The reason should be found out before disassembly.

4. Before and after unloading, try to create conditions to prevent the parts of the hydraulic cylinder from being contaminated by surrounding dust and impurities. For example, the disassembly should be carried out in a clean environment as much as possible; after disassembly, all parts should be covered with plastic cloth, not cotton cloth or other working cloth.

5. After the oil cylinder is disassembled, check carefully to determine which parts can continue to be used, which parts can be used after repair, and which parts must be replaced. For more information and maintenance knowledge, welcome to pay attention to the maintenance experts of excavator accessories on the official account, and provide the most professional accessories services and technical consultations, so that your equipment has more lasting vitality!

Komatsu excavator hydraulic boom cylinder,arm cylinder and bucket cylinder

Below is the model list for excavator and bulldozer hydraulic cylinders