AEC AG Auger Series Granulator - Manual (Page 12)

6.5” Granulators Chapter 2: Functional Description 11 of 35
2-4 Safety Features
Safety Switches
The cutting chamber viewport, auger infeed opening, and the screen drawer assemblies are
safety interlocked to allow the auger and the rotation of the rotor to completely stop before
physical access to the cutting chamber can be made. Unthreading the mechanical interlock
disengages an electric limit switch, which in turn disengages the rotor and auger drive
motors. The period of time required to fully unthread the mechanical interlock allows the
auger and rotor rotation to stop. Removal of the auger infeed opening shipping cover or
customer supplied auger trough safety guard will also disengage an electric limit switch,
which also disengages the rotor and auger drive motors.
For safety purposes, the machine should be disconnected from the power lines by a
disconnect switch or by removing the plug from its receptacle. Check all safety switches
periodically for proper operation. See Figure 1 for location of the safety switches.
Safety Tags
A set of metal plates is attached to the machine to warn of potential danger.
Figure 1: Safety Switches and Interlocks
Cutting Chamber
Interlock Screw
Emergency Stop
Buttons
Safety Plug
Feed Chute
Interlock Switch
Cutting Chamber
Viewport
Cutting Chamber
and Screen Cradle
Access Door