Sterlco ST500 Series Central Granulator - Manual (Page 21)

21
SAFETY
SECTION 1-9
Safety Clothing & Practices
TURN OFF AND LOCKOUT the power per OSHA 1910.147 OR ANSI Z244.1-1982
(Lockout/Tag-out of Energy Sources).
If it is not possible to lock out the power, have an electrician remove the fuses.
Make sure the rotor has come to a complete stop.
The hydraulic cylinders or jackscrews, which open the machine, should not operate until the rotor is
completely stopped.
If you discover that the hydraulic cylinders or jackscrews DO operate while the rotor is still turning,
immediately shut down the machine and call for maintenance to adjust it.
Wear gloves to protect against injury from the rotor or bed knives.
MACHINE OPENING DEVICES
The ST500 Series of granulators have been supplied with a pneumatic opening device. This provide access
to the Cutting Chamber from the rear of the machine mainly for cleaning, knife maintenance.
The system supplied on your machine will be a pneumatic design (air powered cylinder). References will
appear throughout this manual. Be sure to follow the instructions that pertain to the system as supplied on
your machine.
BE SURE THE ROTOR IS MOTIONLESS BEFORE OPENING MACHINE
Never open or remove any machine components unless the motor is electrically locked out and the
rotor is completely motionless.
The ST500 Series machine has a zero speed sensor that detects motion of the rotor. This sensor is
inter- locked to the controls of the pneumatic cylinder. If it detects motion in the rotor thus power to
the solenoid, it cuts the pressure to the pneumatic controls.
If you ever notice that the pneumatic cylinder operate while the rotor is turning, have a mechanic and
electrician check the speed sensor per the procedure in Section 4, entitled Zero Speed Sensor.