252100259 bar linkage for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Linkage Assembly
Part No.: 252100259
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Material: Forged alloy steel, heat treated
Function: Transmit bucket cylinder force and control bucket rotation
Included parts: pins and bushings
Working condition: Heavy-duty alternating impact load
Inspection Items: Dimension inspection, crack detection, hinge hole concentricity test, bushing interference fit test

Applicable Scenarios

Installed on the front of loader boom, linking bucket cylinder and bucket rocker arm. Used for earth and rock loading, sand and stone transportation. Widely applied in quarry, mine, earthwork site and cargo terminal.

• Forged and heat treated per original drawing, consistent hinge center distance, direct fit without modification
• High strength and good toughness, resist bending and fatigue crack under repeated impact load
• Precision reamed hinge holes with standard bushing interference fit, stable clearance and low noise
• Pre-assembled assembly, no need to match bushings separately, save repair time
• Optimized force distribution, reduce stress concentration and crack risk
• Crack tested before delivery, stable batch quality and consistent bucket angle
• Fully compatible with original pins, rocker arm and boom hinge points, easy service
• Popular wear part for ZL50G / ZL50GL, suitable for workshop stock

FAQ 

Q：What symptoms occur when the linkage assembly is damaged?
A：Excessive bucket play and shaking, inaccurate dumping angle, material spillage, abnormal noise and jamming during bucket curl and dump.

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

Q：Can a slightly bent linkage be straightened for long-term use?
A：Not recommended. Straightening destroys heat treatment stress and reduces strength. It may break suddenly under heavy load. New assembly is required.

Q：Can linkages from different loader models be interchanged?
A：Not interchangeable. Hinge distance and motion geometry differ. Wrong fit causes motion interference and structural damage.

Q：What should be noted during installation?
A：Clean hinge holes, inspect pins and bushings, grease pins, test bucket movement after assembly and lubricate regularly.

Q：What causes linkage damage most often?
A：Overloading, impact against hard material, insufficient lubrication and dry wear of bushing.

Q：Is adjustment needed after linkage replacement?
A：No dimension adjustment is required normally. Test bucket full curl and dump position to ensure no interference.