First, check the operation, there should be no abnormal knocking sound inside the crusher. Special circumstances should be stopped immediately. The grain size of the ore should not be more than 0.8 times that of the ore supply. The lower part of the discharge chute and the broken cone should not be blocked by the ore. Otherwise, the ore will lift the ore powder into the eccentric bushing, causing an accident.

Second, pay attention to the operation of the oil pump, often check the oil flow indicator, oil temperature and oil pressure indications. The temperature of the oil after passing through the cooler should not be higher than 45-53 ° C, the return oil temperature should not be higher than 60 ° C, and the oil is supplied to the upper suspension device on time.

Third, pay attention to check the tightness of the V-belt, use the thumb to press the V-belt to measure the tension, if the pressure is not more than 1.5 cm, the elastic is appropriate (measure must be before driving or after parking). Check for cracks and be careful not to get oil on the V-belt.

4. Always check whether the connecting pin between the beam, the middle frame and the base is loose and whether the gap is 15 mm along the circumference of the garden.

5. Check whether the lining boards of each part are loose, lacking and severely worn.

Sixth, strict inspection to the mine situation, and to prevent the hammer, drill a top metal objects into the crushing chamber.

7. Accidents occur during operation. If the chute is blocked by ore, the oil is stopped or the oil temperature exceeds 60 °C and the bevel gear has a knocking sound. It should be immediately stopped according to the prescribed procedures.

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