Sterlco BP800 Series Granulators - Manual (Page 20)

800 Series beside-the-press Chapter 3: Installation 20 of 43
hand knob is completely loose and the power does not disconnect, the
interlock switch is not working and the cause of malfunction must be
determined.
3. Turn OFF and lock out the power.
4. Have an electrician check the interlock switch on the hopper to correct
the malfunction.
5. If necessary, engage the screen cradle interlock actuator screw.
After completing the above procedures, close the control panel. Unlock the
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, and check
again that the rotor is turning in the correct direction.
Checking Knife Position
This operation must be carried out by an operator or 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 outlined in “Checking the Cutting Chamber.” Before
proceeding to the checks, it is recommended to block the rotor to avoid any
inadvertent rotation.
Once you have safely accessed the cutting chamber, check the current distance
between the bed knives and the rotor knives using a feeler gauge (see figure
below).
The distance set by the manufacturer for normal application is 0.006" to
0.008" (0.15 mm to 0.20 mm). If the gap between the bed knives and the rotor
knives is greater than this range, an adjustment must be made. (See
“Inspection and Adjustment of Knives”.)
Once you have checked the knife gap, close the hopper and secure it with the
appropriate swing bolt. Reinsert the bin and close the front panel.
Figure: Checking
the knife gap