803502418 warning buzzer for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Buzzer
Part No.: 803502418
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader (all series)
Type: Electromagnetic audible warning device
Installation Position: Corresponding position on cab or frame
Function: Reverse warning, alarm prompt, status audible signal
Working Voltage: 24V
Rated Voltage Range: Matches loader 24V electrical system
Sound Type: Continuous/intermittent buzzing
Wiring Method: Connector/terminal wiring
Mounting Method: Bracket fixation or bolted fastening
Protection Capability: Certain dust and splash resistance

Applicable Scenarios

Widely used in quarry, aggregate yard, and earthwork construction sites with reversing warnings and mixed personnel-vehicle operations. It is a basic signal accessory for ensuring site personnel safety.

▪ Direct audible warning function for reversing safety
Emits a buzzing warning sound during reversing or alarm conditions, alerting the driver and surrounding personnel to equipment movement and reducing collision risk.

▪ Mounting matches original position for easy replacement
Designed to the original buzzer mounting position and electrical interface, requiring no bracket or circuit layout modification during replacement and shortening on-site repair time.

▪ Housing protection against dust and vibration
The housing structure provides certain protection against dust, mud splash, and machine vibration, suitable for harsh environments such as mines and aggregate yards.

▪ Can be stocked with other signal accessories for the same model
Can be stocked together with reverse lights, horns, relays, and related signal accessories for the same model, facilitating complete procurement during electrical signal system maintenance.

FAQ 

Q：When does a buzzer need replacement?
A: Replace when the buzzer completely fails to sound, sounds hoarse or intermittent, is intermittent in operation, or the housing is damaged or terminals are corroded.

Q：Is buzzer failure always caused by the buzzer itself?
A: Not necessarily. Check corresponding fuses, relays, reverse gear switch (if reverse buzzer), and wiring connectors first. Inspect the buzzer itself after confirming peripheral circuits are normal.

Q：What to note during buzzer installation?
A: Confirm the buzzer working voltage matches the original system (typically 24V). Orient the installation position reasonably, avoiding the cab or water-accumulation positions. Check wiring polarity and fix securely to prevent vibration loosening.

Q：How to maintain the buzzer daily?
A: Regularly clean the buzzer housing and sound outlet to prevent mud blockage affecting sound. Check terminals for corrosion and looseness, and address abnormalities promptly.