Sterlco ST500 Series Central Granulator - Manual (Page 33)

33
INSTALLATION
SECTION 3-7
Test Interlock and Zero Speed Switch
ALTERNATE TEST FOR THE INTERLOCK SWITCHES (Continued from previous page).
After the test or repair, engage the screen cradle interlock actuator screw.
If necessary, unlock and turn on the power.
Push the start button to start the granulator.
Retract the cutting chamber interlock actuator screw by turning it counterclockwise. Make
sure that the end of the actuator screw is visible and clear of any contact. The granulator
should stop.
If the machine continues to run, TURN OFF AND LOCK OUT THE POWER per OSHA
1910.147 OR ANSI Z244.1-1982 (Lockout/Tag-out of Energy Sources).
Have the electrician check the interlock switch on the cutting chamber to correct the
malfunction.
After the test or repair, if necessary, engage the cutting chamber interlock actuator screw.
TEST THE ZERO SPEED SENSOR (OPTION)
Cutting Chamber Pneumatics
Depress the start button to start the granulator.
When the machine reaches full speed, depress the stop button to stop the granulator.
Open the cutting chamber interlock using the procedure in Section 6 entitled Cutting
Chamber Access.
Release the cutting chamber hold-down clamps using the procedure in Section 6 entitled
Cutting Chamber Access.
While the rotor is still turning, actuate the cutting chamber pneumatic cylinder from the
control console by turning the CC/Hopper selector switch to the LOWER POSITION.
The pneumatic cylinder should NOT operate until the rotor has come to a complete stop.
If the pneumatic cylinder operates before the rotor stops, TURN OFF AND LOCKOUT
THE POWER per OSHA 1910.147 OR ANSI Z244.1-1982 (Lockout/Tag-out of Energy
Sources).
Have a mechanic and electrician check the speed sensor using the procedure in Section 4
entitled Zero Speed Sensor.