252108083 brake valve assembly for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Brake Controller
Part No.: 252108083
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Matching System: Air-over-oil service brake circuit
Housing Material: Die-cast aluminum alloy
Signal Type: Air pressure input, hydraulic pressure output
Installation: Matches original brake oil pipes, air pipes, wiring harness plugs and bolts
Working Condition: Quarry mining, aggregate yard, heavy earthwork and construction projects

Applicable Scenarios

It is installed on frame bracket near brake pipeline of XCMG ZL50G and ZL50GL wheel loader, widely used in quarry, aggregate yard and earthwork construction sites.

▪ OEM mounting holes, ports and pin definition match original parts for direct replacement without parameter recalibration
▪ Sealed die-cast aluminum housing resists impact and heat, preventing dust and mud from damaging internal circuits
▪ High-precision pressure sensor provides linear brake pressure for smooth and consistent braking feel
▪ Built-in parking interlock logic blocks parking brake when machine is moving to avoid misoperation accident
▪ Modular integrated design reduces external valves and potential leakage points
▪ Fast signal response and stable pressure feedback under frequent start-stop braking cycles
▪ Compatible with brake cylinder, hand brake valve, pipes and booster pump of the same model for easy stock management
▪ Factory calibration and aging test screen defective units with signal failure or internal leakage for reliable braking

FAQ 

Q：Can I keep working if the controller has no brake pressure output after power on?
A：Operation is forbidden. No pressure means brake failure. Shut down and replace the controller immediately.

Q：What causes fluctuating braking force?
A：It is usually caused by sensor drift, spool sticking or air in oil circuit. Replace whole assembly instead of partial electronic repair.

Q：What damage will water and oil inside cause?
A：Oil and water corrode circuit board and sensor and lead to disordered signal. Check pipeline leakage regularly.

Q：Is weak braking always caused by this controller?
A：Not necessarily. Check air tank pressure, booster pump, oil pipe and caliper first.

Q：How to store spare brake controller?
A：Store in dry and ventilated area, seal all ports, protect connector from moisture, heavy load and impact.

Q：Can I replace only the internal sensor for fault alarm?
A：Sensor repair is not recommended for field heavy vibration condition. Full assembly replacement is safer for brake system.

Q：Will high temperature affect the controller?
A：High temperature accelerates seal aging and electronic drift. Check brake oil temperature frequently in summer.