252100421 bucket pin for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Bucket Pin
Part No.: 252100421
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Size: φ80×215
Material: Forged alloy steel, tempered + induction hardened
Function: Hinge bucket and linkage, transmit overturning load
Matching parts: bushing, dust seal, grease nipple
Working condition: Heavy-duty alternating impact load
Inspection Items: Dimension inspection, crack detection, hardness test, straightness test

Applicable Scenarios

Installed at bucket hinge point to connect bucket and linkage for bucket curl and dump. Widely used in quarry, mine, earthwork site and cargo terminal for bulk material handling.

• Machined per original drawing, accurate OD, length and grease hole for direct fit without modification
• Forged alloy steel with induction hardening, wear-resistant surface and tough core, resist bending and fracture
Internal grease channel distributes lubricant evenly between pin and bushing, slow down wear rate
• Strict straightness control, uniform clearance, smooth bucket movement and less abnormal noise
• Precision ground surface, low roughness, protect bushing and hinge hole from premature wear
• Crack inspection before delivery, stable batch quality, popular stock item for repair shop
• Fully compatible with original bushing, dust seal and grease nipple, easy installation and short downtime
• Controlled hardening depth, no brittleness, good performance in mine and harsh working conditions

FAQ 

Q：What symptoms occur when the bucket pin is worn?
A：Excessive bucket play and shaking, abnormal noise during curl and dump, unstable dumping angle and material spillage.

Q：Does bucket shaking always mean the bucket pin is damaged?
A：No. Check bushing wear, hinge hole deformation and dust seal damage first. Confirm pin damage after eliminating these faults.

Q：Can a slightly bent pin be straightened for long service?
A：Not recommended. Straightening damages heat treatment stress and reduces strength. It may break suddenly under heavy load. New pin is required.

Q：Can hinge pins of different loader models be interchanged?
A：Not interchangeable. Diameter, length and grease hole position differ. Wrong fit causes abnormal clearance and rapid hole wear.

Q：What should be noted during pin installation?
A：Clean dirt from hinge hole, inspect bushing and dust seal, fill grease after installation and test bucket movement.

Q：What causes fast wear of bucket pin?
A：Insufficient lubrication, heavy impact and failed dust seal which allows sand and grit into mating surface.

Q：Is bucket angle adjustment required after pin replacement?
A：Angle adjustment is not required normally. Test full curl and dump stroke to ensure no interference.