Cutter Mixer Common Faults & Maintenance Solutions

Daily Maintenance Tips

1. Clean all contact parts with food‑grade detergent after each use, never flush electric components directly with high-pressure water.
2. Check cutting blades, seals and fasteners daily; replace aging rubber rings and damaged parts in time.
3. Lubricate bearings, hinge parts and transmission components with food‑grade lubricant regularly.
4. Control feeding capacity within 60%–80% of tank volume to avoid overloading.
5. Keep the blade gap at a standard distance, sharpen dull blades to ensure chopping quality.
6. Inspect safety interlock switches, emergency stop buttons and circuit lines before startup.

Common Faults & Troubleshooting

1. Equipment Fails to Start

• Causes: Emergency stop not reset, safety cover interlock failure, power loss, loose wiring or phase missing.
• Solutions: Reset the emergency stop button, adjust safety switch position, check total power supply and tighten circuit connections.

2. Cutting Blade Not Rotating or Weak Speed

• Causes: Motor overload protection, slipping drive belt, material jamming, reducer oil shortage or gear wear.
• Solutions: Clean blocked materials, adjust and tension the belt, refill gear oil, replace worn transmission parts.

3. Rotating Tank Stuck or Slow Operation

• Causes: Bottom bearing lack of lubrication, foreign matter stuck, excessive feeding, seal damage and water ingress.
• Solutions: Clean foreign substances, add special lubricating grease, reduce raw material input, replace damaged seals.

4. Abnormal Noise & Severe Vibration

• Causes: Damaged main bearing, unbalanced blades, loose blade installation, bent spindle.
• Solutions: Replace worn bearings, regrind and balance blades, fasten blade nuts tightly, correct or replace the spindle.

5. Poor Chopping Fineness & Coarse Material

• Causes: Blunt blades, excessive blade gap, insufficient chopping time, high raw material temperature.
• Solutions: Sharpen blades, adjust blade gap reasonably, extend mixing time, add ice to control material temperature.

6. Oil Leakage & Material Leakage

• Causes: Aging shaft seal, damaged retaining ring, failed bottom sealing parts.
• Solutions: Replace high-quality food-grade seals, reinstall baffles, check and maintain sealing components regularly.

7. Motor Overheating & Automatic Shutdown

• Causes: Long-term overloading, poor heat dissipation, sticky raw materials, abnormal blade resistance.
• Solutions: Reduce feeding volume, clean heat dissipation filters, control material viscosity and repair unqualified blades.

8. Discharging Device Malfunction

• Causes: Discharge arm hinge rusting and jamming, material accumulation, discharge motor overload.
• Solutions: Lubricate movable joints, clean residual materials, reset motor protection and adjust discharge angle.

Long-term Maintenance Advice

• Weekly: Clean shaft seals, check wearing parts and fasten all screws.
• Monthly: Inspect belt tension, test frequency conversion system and lubricate all movable parts.
• Annual: Replace reducer oil, inspect internal gears and perform overall equipment inspection.

Safety Notes