Hydraulic Parts Coupling 80A with Aluminium Insert Connect Excavator Pump ​

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Products instruction:

Coupling Removal Precautions
1. If the coupling needs to be disassembled due to the failure of the coupling itself, the whole coupling should be carefully checked first (especially for the coupling that has been damaged), and the cause of the failure should be found out.
2. Before the coupling is disassembled, some marks should be made on the position where the various parts of the coupling cooperate with each other for reference during reassembly. Couplings used for high-speed machines, the connecting bolts of which are weighed, must be clearly marked and cannot be mistaken.
3. When disassembling the coupling, generally remove the connecting bolts first. Due to the deposition of a layer of grease, corrosion products and other deposits on the surface of the thread, the bolt is not easy to disassemble, especially for the bolt with severe corrosion, it is very difficult to disassemble.
4. Appropriate tools must be selected for the disassembly of connecting bolts. Because the force surface of the outer hexagon or inner hexagon of the bolt has been slipped and damaged, disassembly will be more difficult.
5. For bolts that have been corroded or have a lot of grease, often use a solvent (such as rust remover) to spray the connection between the bolt and the nut, so that the solvent can penetrate into the thread, so that it will be easy to disassemble. If the bolt cannot be removed, the heating method can be used, and the heating temperature is generally controlled below 200 °C. By heating, the gap between the nut and the bolt is enlarged, and the rust is also easy to fall off, making the bolt removal easier. If none of the above methods work, only destroy the bolts, cut or drill the bolts, and replace them with new bolts during assembly. The new bolts must be the same as the original bolts. The new bolts used for high-speed equipment couplings must also be weighed so that the new bolts have the same weight as the connecting bolts on the same set of flanges.
6. In the process of coupling disassembly, the most difficult work is to remove the hub from the shaft. For keyed hubs, generally use a three-legged puller or a four-legged puller for disassembly. The selected puller should match the outer dimensions of the wheel hub, and the right-angle hooks of each foot of the puller should be properly combined with the rear side of the wheel hub, so that no slippage occurs when force is applied. This method is only used for the disassembly of the hub with a relatively small interference. For the hub with a relatively large interference, the heating method is often used, or it is disassembled with a hydraulic jack at the same time.
7. Cleaning, cleaning and quality evaluation of all parts of the coupling is an extremely important work after the coupling is disassembled. The evaluation of parts means that after each part is in operation, the existing conditions of its size, shape and material properties are compared with the quality standards determined by the design of the parts to determine which parts can continue to be used and which parts should be used. Used after repair, which are the parts that should be scrapped and updated.

Company information:

Guangzhou XIEBAGN MACHINERY CO., LIMTED

specialized in:

couplings, rubber mounts, gera parts, hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators,wheel loaders, and JCB badkhoe loaders.

And, Our company also supply:

Engine parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing,accumlator, valve, etc.

We always try our best for all our customers and make it better and better. Welcome!

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Looking for a reliable supplier of excavator parts? Whether you need OEM services or a complete range of parts, we provide the best solutions for your business. As both a manufacturer and trading company, we combine factory-direct prices with the convenience of one-stop sourcing, ensuring that you get high-quality parts at competitive prices.

At YNF Machinery, we specialize in excavator rubber parts and a wide range of excavator components. Our extensive experience and commitment to quality make us a trusted partner for distributors, wholesalers, and repair shops worldwide.

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