After working on the site for a day, the excavator found that there was no way to start it when preparing for construction work the next morning.
Failure phenomenon: Hitachi ZX240-3 type excavator stopped one night before the next day's work, the excavator could not start.
Trouble repair details:
1. Under normal circumstances, the excavator fails to start after one night of shutdown. The owner can check whether there is a circuit failure in the excavator. If it fails to start in the winter after a night of shutdown, you need to first check whether the excavator oil The wax has formed because the temperature is too low.
2. Hitachi ZX240-3 excavator can not start the circuit check steps:
(1) First check that the fuse is normal.
(2) Check that the battery relay is not engaged.
(3) Check the battery and find that the positive terminal is burnt out. It is analyzed that the terminal clasp is not tightened during installation. At the moment of starting, the terminal is burned because the starting current is too small due to too small contact surface.
3. Hitachi ZX240-3 excavator cannot start maintenance method: the test machine is normal after replacing the battery.
4. Hitachi ZX240-3 excavator failed to start failure analysis: This case is due to the anode wire is not clamped when the battery is assembled, resulting in the arc burning terminal caused by the instantaneous large current at startup.
5 Handling experience: Through this case, I hope to be more serious in the future work, work more carefully, to avoid the negligence of the work that can cause the machine to be avoided.
