252101524 bracket for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part No：252101524
Product Type：Engine Throttle Bell Crank / Rocker Arm
Applicable Equipment：XCMG ZL50G / ZL50GL 5 Ton Wheel Loader
Core Technology：Alloy steel forging + normalizing heat treatment
Material：High strength alloy steel
Surface Treatment：Anti-rust paint coating
Center Bore Diameter：16mm
Pin Hole Diameter：12mm
Arm Length：132mm
Swing Angle Range：0~42°
Working Temperature Range：-30℃ ~ +70℃
Installation Method：Shaft pin assembly, connect throttle cable and fuel pump lever
Application：Convert linear pull force of throttle cable, control engine fuel supply

• Alloy steel forging structure plus heat treatment, high impact resistance and fatigue resistance, long service life under repeated swing motion.
• Precision machined holes, small fit clearance, smooth rotation, effectively prevent throttle stuck or unresponsive.
• Anti-rust surface coating, slow down corrosion under dusty and muddy outdoor working environment.
• Strictly follow OEM lever ratio design, accurate throttle stroke transmission, consistent engine speed control.
• Standard hole size and arm dimension, directly replace original part, simple assembly and adjustment.
• Stable force transfer, reduce extra wear on throttle cable and fuel pump control mechanism, extend the service life of related throttle components.

FAQ 

Q1：What signs indicate the throttle bell crank needs replacement?
A1：Serious wear or ovalization of shaft holes, cracks on arm body, bending deformation. Damaged bell crank will cause unstable engine speed, throttle sticking or failed speed adjustment.

Q2：What should be noted during bell crank installation?
A2：Clean shaft and pin holes before assembly. Fit new pin and bushing if worn. Check swing flexibility, adjust soft shaft pre-tension properly. After installation, test throttle full stroke, ensure no stuck point.

Q3：What causes throttle bell crank damage?
A3：Long-term reciprocating swing fatigue; lack of lubrication leading to hole wear; dust and mud abrasive wear; overload impact or collision deformation.

Q4：Can bent bell crank be corrected and reused?
A4：Not recommended. Straightening will change internal material stress, it is easy to deform and crack again under repeated swing vibration, affect throttle control safety, better replace new bell crank.

Q5：How to maintain throttle bell crank daily?
A5：Regularly check for cracks and hole wear, add grease to rotating shaft pin. Clean dust and mud around bell crank to reduce abrasive wear.

Q6：What trouble will a worn throttle bell crank bring?
A6：Hole becomes out of round, the throttle stroke will be unstable. Engine speed fluctuates when working, throttle response becomes slow, even throttle stuck at high speed, bringing operation risk.