What causes a jaw crusher to suddenly shut down

Causes:

1. Blockage at the discharge opening, causing material buildup in the crushing chamber;

2. Excessively loose V-belt driving the sprocket, resulting in belt slippage;

3. Loosening of the eccentric shaft locking bushing, causing zero clearance in the bearing housings on both sides of the frame, which locks the eccentric shaft and prevents rotation;

4. Insufficient voltage at the worksite, causing the main unit to lack crushing power when encountering oversized material;

5. Bearing damage.

Troubleshooting Methods:

1. Clear the discharge port obstruction to ensure smooth material flow;

2. Tighten or replace the V-belt;

3. Reinstall or replace the locking bushing;

4. Adjust the worksite voltage to meet the main unit's operational requirements;

5. Replace the bearings.

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