The excavator wiper did not work. It turned out that the switch was not turned on!

[DIG-DOG]

The frequency of using the wipers of the excavator is not as high as that of the car. On the one hand, the vision of the excavator is better during construction, and the light rain can't block the driver's sight at all. On the other hand, if the weather is very bad, the excavator will stop working directly for safety reasons.

Of course, if the safety factor of the construction condition is high, and it happens to encounter heavy rain and other weather conditions, the wipers will come in handy at this time! But the wipers that have been idle for a long time have no response no matter how you press them, which is embarrassing!

Fault phenomenon

The owner responded that because the project must be rushed to work as usual during the rainy season, the owner pressed the wiper and water spray switch, but the display did not have the wiper and water spray symbols. Because the excavator wiper is turned on very rarely, the owner could not determine what was broken for a while.

Cause analysis
▊ In order to prevent the wipers from being damaged by continuing to wipe when the windshield is pulled up, a safety switch is usually installed on the left front of the cab.

▊ If the windshield is pulled up and the safety switch is closed, the wiper controller will turn off the wiper system, resulting in the phenomenon of the wiper not moving.

▊The owner's excavator is a Kobelco 8 model. The 6 model also has this switch, but it is installed behind the cab.

▊Because the switch is very hidden, it does not attract much attention and is ignored. It may even lead the maintenance personnel and the owner to other parts of the wiper system, which will cause great trouble for maintenance.

Handling method
▊Confirm whether the large windshield is locked. The large windshield needs to be pushed forward after being lowered to lock.

▊Check whether the safety switch is disconnected after the large windshield is locked.

▊If the safety switch is not disconnected, adjust the push piece next to the safety switch until the safety switch can be disconnected smoothly, and the problem will be solved!

Summary:
There are tens of thousands of parts on the excavator, especially small parts such as the wiper safety switch, which are usually opened very rarely, and even not used for a long time. The owner will inadvertently ignore it, thus causing a misunderstanding.

Of course, I hope this question can resonate with all the friends. In many cases, it is not enough to have skilled driving skills. Only by understanding and being familiar with excavators can you become a real veteran driver! In this way, you can judge many simple faults and blunders more quickly and accurately!

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