Sterling BP810, BP814 manual 7Troubleshooting, General Problems, Possible Causes, Possible Remedies

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.

7-1		General Problems
	Problem			Possible Causes	Possible Remedies
	Overheating of bearings		Dirt or contamination in the bearing		Correct source of contamination
			Excessive belt tension		Adjust belt tension
			No lubrication
					Check bearing seals
	Knives moving in their		There may be foreign matter on the		Carefully clean seat
	seats		knives
			Knife screws loose		Tighten screws with torque wrench
					at values specified
			Knife screws weakened		Screws must not be used more than
					6 times
	Broken knife			Improper resharpening	Check knife grinding method used
			Extremely hard material		Contact supplier
					Check rotor direction
			Incorrect rotor direction
					Look for cause with operator
			Foreign body in the cutting chamber
			Faulty fitting of screen		Check assembly procedure
	Excessive knife wear		Incorrect knife position		Correct the gap or distance
					between bed knives and rotor
					knives
			Improper knife re-sharpening		Check dimensions with Figure 14
					and Figure 15.
			Abrasive material		Contact the supplier for special
					knives
	Abnormal screen wear		Incorrect fitting of screen		Check that the screen is correctly
					seated in its rear position and that it
					fits perfectly at the front.

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