Product Introduction:
The 803699926 relay is an electrical component used in the XCMG XE135G excavator. It is a switching device that controls higher-current circuits using a low-current control signal, commonly applied in the machine's electrical control system.
1. Installation Location
This relay is installed in the excavator's electrical control box or relay box, typically located in the cab or behind an access panel. It plugs into a socket on the relay board, allowing relatively easy removal and replacement for maintenance.
2. Function
The relay uses a low-current control signal to switch a higher-current circuit on or off. On the XE135G, relays of this type are used to control functions such as lighting, horn, starting, and other auxiliary electrical systems. This protects the control switch and wiring from high current loads while ensuring reliable operation of the connected component.
3. Maintenance and Service
If the circuit controlled by the relay stops working, the relay should be checked. A failed relay may show no switching action, a clicking sound without output, or burnt contacts. The relay can be tested for continuity and coil resistance. If faulty, it should be replaced with an identical 803699926 unit. Before replacement, turn off the machine's power and disconnect the battery.
4. Important Notes
Always verify the part number 803699926 matches the original component specification for the XE135G model before installation. Confirm the relay's voltage rating and terminal configuration are correct for the circuit being serviced. After replacement, test the corresponding function to confirm proper operation.
