1.0-1--Working mode selection switch does not work. Operating the working mode selection switch. When the indicator light does not change, the switch may have a problem; when the indicator light changes but the actual working speed does not change, there may be a problem with the pressure switch or proportional solenoid valve.
2.0-2- -When operating the joystick, the working device reacts slowly
3.0-3-Excessive noise or vibration of the main pump
4.0-4-Wiper does not work
Change the switch in the switch panel from the intermittent working position to the continuous working position, and connect the switch panel and the windshield wiper motor with a wire.
(1) The intermittent or continuous operation of the wiper is bad.
(2) The intermittent or continuous working mode of the wiper is not good.
5.0-5--fuse failure Here, take the fuse used for the work light as an example. The same method can be used to check the failure of other fuses (horn, wiper, cab heater, etc.).
When a fuse is damaged shortly after being replaced, you should disassemble all parts from the circuit, check the circuit in the direction of the current, and then reconnect the parts one by one.
