803604504 brake switch for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Brake Light Switch
Part No.: 803604504
Corresponding Model: JN150
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Type: Brake signal switch
Installation Position: Brake pedal linkage position or corresponding brake circuit position
Function: Closes brake light circuit during braking

Applicable Scenarios

Widely used in quarry, aggregate yard, and earthwork construction sites with frequent braking and mixed personnel-vehicle operations. It is a basic signal accessory for ensuring personnel behind can judge the machine’s braking status.

▪ Direct brake signal function for rear safety
Closes the brake light circuit when the brake pedal is pressed, sending a clear braking signal to personnel or vehicles behind and reducing rear-end collision risk.

▪ Mounting matches original brake linkage position
Designed to the original brake pedal linkage position or brake circuit interface, requiring no modification to the original mounting structure during replacement and shortening on-site repair time.

▪ Compact structure fits cab/frame installation space
The compact switch suits installation near the brake pedal or corresponding brake circuit position without interfering with surrounding component movement.

▪ Can be stocked with brake lights, fuses, and related electrical accessories
Can be stocked together with brake lights, fuses, wiring connectors, and related accessories for the same model, facilitating complete procurement during brake signal system maintenance.

FAQ 

Q：Is brake light failure always caused by the switch?
A: Not necessarily. Check brake light bulbs, fuses, and wiring connectors first. Inspect the brake light switch for closing or poor contact after confirming peripheral circuits and bulbs are normal.

Q：What causes brake lights to stay on continuously?
A: Common causes include stuck switch contacts that cannot open, poor pedal return causing continuous switch pressure, or circuit short. Check pedal return and switch actuation first, then inspect the circuit.

Q：What to note during brake light switch installation?
A: Confirm the switch model matches the original configuration and align the installation position with the brake pedal linkage. Adjust switch position to ensure it opens when the pedal is released and closes reliably when pressed.

Q：How to maintain the brake light switch daily?
A: Regularly check brake light operation (on when pedal pressed, off when released). Check switch fixation for looseness and terminals for corrosion, and address abnormalities promptly.