The fixed jaw crusher is a widely used crushing equipment at home and abroad. Because of its simple structure, many users choose to install and maintain it after purchase. However, due to the unclear details, the installation is not in place or the operation is incorrect, which will cause subsequent production. Let's take a look at what issues to pay attention to when installing and operating the jaw crusher.

1. Preparations before starting: Before starting, the fixed jaw crusher machine must be thoroughly inspected. Check the wear condition of jaw plate; adjust the size of the discharge port; check whether there is stone in the crushing chamber; if there is a large rock, it must be taken out; check whether the connecting bolt is loose, whether the protective cover of the pulley and the flywheel is intact, and whether the tension of the tie rod spring is appropriate.

2. Before starting the fixed jaw crusher, the oil pump motor and cooling system should be started first. After 3-4 minutes, when the oil pressure and oil flow indicator are normal, the motor is started. After starting, if the fixed jaw crusher makes an abnormal sound, stop running, identify and eliminate the ills, and restart the machine. The crusher must be started at no load.

3. The operation must pay attention to uniform stone, avoiding side feeding or full feeding. The stone is not allowed to be crowded with the crushing chamber, and the maximum stone size should not be greater than 0.85 times the width of the ore. At the same time, when the stone is delivered, the non-crushed material is strictly prevented from entering the fixed jaw crusher machine. During the operation, it is necessary to pay attention to the large rock. If it is stuck, use the iron hook to turn the ore; if the large stone needs to be taken out of the crushing chamber, special equipment should be used.

4. In the operation of the machine, if there are too many ore or blockage of the crushing chamber, the ore should be suspended, and the ore in the crushing chamber should be started after being crushed. During operation, it is also necessary to conduct regular inspections to observe the working conditions of the various components and the bearing temperature. The sliding bearing temperature usually does not exceed 60 °C to prevent the alloy bearing bush from melting and causing a burning accident. When the bearing temperature is found to be high, effective measures should be taken to reduce the bearing temperature (such as forced ventilation or water cooling).
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