The motor does not turn on; there is no response when the start button is pressed.
It runs without load, but trips or stalls when loaded.
Possible Causes:
Insufficient power supply or phase loss, poor connection in the wiring.
Motor or electrical overload protection activated, belt too loose/tight.
Excessive material input at once results in severe blockage in the crushing chamber.
Simple Troubleshooting Steps:
Turn off power → Check the power supply, switches, and wiring for looseness.
Run without load → Observe current and motor sound.
Clean the crushing chamber, adjust the feed amount, and tighten the belt.
Prevention Tips and Operating Suggestions:
Establish a standard operating procedure: "Run without load first, then feed evenly.
Material accumulates at the feed inlet, discharge is slow, or no material comes out.
Same feeding conditions, but output decreases significantly, and particle size becomes coarser.
Possible Causes:
High moisture content, oversized, or overly hard materials.
The discharge gap is too small, making it difficult for material to fall.
Severe wear on jaw plates (or hammers, blades, etc.).
Simple Troubleshooting Steps:
Turn off power → Clean the feed and discharge outlets and the crushing chamber.
Check the discharge gap adjustment device and restore proper opening.
Check the wear condition of consumable parts and replace them if necessary.
How to Reduce Blockage Risks Through Material Selection and Pre-treatment:
Control feed size, select appropriate screen mesh size, or use pre-crushing equipment.
The frame of the equipment vibrates violently, and bolts become loose.
A sharp metallic impact or friction sound, different from normal operation noise.
Possible Causes:
Loose anchor bolts, unstable installation, or weak foundation.
Material stuck on the flywheel/rotor or imbalanced counterweights, bearing damage.
Loose or broken fasteners on jaw plates, liners, etc., or foreign objects entering the crushing chamber.
Simple Troubleshooting Steps:
Immediately stop the machine → Check the anchor bolts and tighten them.
Open the inspection port → Check for foreign metal objects or loose parts in the crushing chamber.
Observe bearing temperature and sound → Determine if bearings need replacing or balancing.
Installation and Regular Inspection Tips:
Level and align the machine before operation, periodically check bolts and shields, and maintain operating records.
Typical Symptoms of Bearing Overheating or Odor:
Bearing seat temperature is significantly higher than other parts of the machine, even to the touch.
Main Causes:
Excessive or insufficient grease, or grease contamination with dust.
Incorrect bearing gap, misalignment during installation, or prolonged overload operation.
Quick Troubleshooting and Handling:
Check the grease filling quantity according to the manual, clean and replace it regularly.
Check bearing gap and fit, and replace if abnormal.
Create a "Check + Maintenance" Log:
Items to check daily, weekly, and monthly (tightening, lubrication, electrical components, consumables, etc.).
Plan bearing, jaw plate/hammer, and belt replacement cycles based on operating hours.
By following the above troubleshooting methods, mini crusher users can better maintain their equipment, reduce faults, extend the machine's lifespan, and ensure efficient operation.
If you need more detailed solutions or customized services, feel free to contact us.
