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impact crusher speed change mechanism failure divided into two types

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First rely on quantitative motor and gearbox can not be variable speed variable speed - Quantitative motor gearbox institutions , its judgment is relatively simple , such as normal quantitative motor working pressure , transmission damage , to restore it to achieve variable speed dryer devices.

The second variable speed - variable motor organizations can not rely on the variable motor variable speed variable motor displacement control mechanism can not be normally open or failure , we must first check the travel speed control switch is good , variable-speed solenoid valve is normal , measuring circuit and the solenoid valve parts is smooth to ensure that the solenoid valve to smoothly open and connected to the variable speed control circuit to ensure normal pressure ( the pressure to make up the oil pressure ) jaw crusher .
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