Product Introduction:

The pin referenced by 310708004 is used in XCMG XE215SLL, XE215DLL, and XE215GLL excavators. It serves as a connection and pivot element in the machine's working equipment.

1. Installation Location
This pin is installed at the connection joints of the excavator's working equipment, including boom, arm, and bucket linkage points, as well as hydraulic cylinder mounting positions. It passes through the mating bores of the connected components and is secured in place.

2. Function
The pin transmits force and provides a pivot point between connected components, allowing controlled rotation at the joint while carrying shear and bearing loads. It is subjected to significant force and friction during digging and lifting operations, so correct fit and material strength are essential for reliable machine operation.

3. Maintenance and Service
Regular inspection includes checking the pin for wear, scoring, or deformation, and verifying that retaining hardware is secure. Worn pins can cause excessive joint play, noise, and accelerated wear of surrounding bushings and bores. If the pin shows signs of damage or excessive clearance, replacement with an identical unit is recommended.

4. Important Notes
Always verify the part number 310708004 matches the original component specification for the XE215SLL, XE215DLL, and XE215GLL models before installation. Apply the specified lubricant to the pin and mating bore during assembly, and confirm the pin is fully seated and properly retained after installation.