7Troubleshooting
The following tables list problems that could occur when using the granulator. This general information may help to locate the cause of the problem and allow it to be resolved promptly. When a problem arises, it is advisable to perform the simplest checks before proceeding to more complicated ones, which may subsequently prove unnecessary.
General Problems |
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| Problem | Possible Causes | Possible Remedies | |
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| Overheating of bearings | Dirt or contamination in the bearing | Correct source of contamination | |
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| Excessive belt tension |
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| Adjust belt tension |
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| No lubrication |
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| Check bearing seals |
| Knives moving in their | There may be foreign matter on the | Carefully clean seat | |
| seats |
| knives |
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| Knife screws loose | Tighten screws with torque wrench |
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| at values specified |
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| Knife screws weakened | Screws must not be used more than |
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| 6 times |
| Broken knife |
| Improper resharpening | Check knife grinding method used |
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| Contact supplier |
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| Extremely hard material |
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| Check rotor direction |
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| Incorrect rotor direction |
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| Look for cause with operator |
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| Foreign body in the cutting chamber |
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| Faulty fitting of screen | Check assembly procedure |
| Excessive knife wear | Incorrect knife position | Correct the gap or distance | |
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| between bed knives and rotor |
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| knives |
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| Improper knife | Check dimensions with Figure 17 |
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| and Figure 18. |
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| Abrasive material | Contact the supplier for special |
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| knives |
| Abnormal screen wear | Incorrect fitting of screen | Check that the screen is correctly | |
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| seated in its rear position and that it |
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| fits perfectly at the front. |
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