Sterling BP814, BP818, BP810 manual 4-4-3Test the Interlock Switch, 4-4-4Checking Knife Position

4-4-3 Test the Interlock Switch

With the cutting chamber and screen cradle closed and power On, perform the following tests:

1.Push the start button to start the granulator.

2.With the granulator running, loosen the handknob on the front access door to verify the safety interlock switch shuts the machine off. If the hand knob is completely loose and the power does not disconnect, the interlock switch is not working and the cause of the malfunction must be determined.

3.Turn off the power and lockout the power.

4.Have the electrician check the interlock switch on the hopper to correct the malfunction.

5.If necessary, engage the screen cradle interlock actuator screw.

Having completed the above procedures, close the control panel. Unlock power or return the fuses in the supply panel, turning the disconnect switch to “ON”. Pull the start button and release only when the motor has started, then check again that the rotor is turning in the correct direction.

4-4-4 Checking Knife Position

NOTE: This operation must be carried out by an operator / mechanical maintenance engineer.

Before undertaking any type of work on the machine, use a feeler gauge to check the distance between the bed knives and the rotor knives (the knife gap).

To access the cutting chamber, follow the same procedure and observe the precautionary steps given in Section 4-4-1.Before proceeding to the checks, it is advisable to block the rotor to avoid any inadvertent rotation.

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