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882.00207.00 Chapter 5: Maintenance 64 of 102
5-2 Preventative Maintenance
Our blenders need periodic maintenance to provide long dependable service. Check these elements
regularly:
• Check functionality of safety circuit daily.
• Maintain proper air pressure and drain water from trap assembly on regulator – as required.
• Periodically lubricate slide gate rails.
WARNING! Always remove plug and disconnect power before servicing blender.
WARNING! Always read operating manual before operating or servicing blender.
5-3 Corrective Maintenance
Electrical
This section is designed to give the operator an overview of the electrical system that controls the
Slide Gate/Auger blending system. Since the blender’s control panel is a self-contained pluggable
item, seldom will a maintenance person be required to enter the control panel. For purposes of
understanding the system, it is advisable that the maintenance personnel be familiar with not only the
internal workings of the control panel, but also with the input and output signals to the Slide
Gate/Auger blender.
This section includes the following:
• Internal components of the control panel
• Input signal to the control panel
• Output signals from the control panel
Internal Components of the Control Panel
This section describes the internal components of the Slide Gate/Auger blending system control
panel. It is not the intent of this section to completely familiarize the reader with the details on
industrial control panel construction or standards, but simply to familiarize the reader with the major
components inside the control panel.
The customer must supply 120/1/50 or 60 (or 220/1/50 or 60) via wires L1 & L2 (N). Please ensure
that the earth ground connection is properly connected to an established earth ground.
• “Power on” is indicated by a lighted on/off switch.
• “Slide gate below mixer” switch controls position of optional slide gate.
• “Safety Active” light displays status of safety interlock circuit. Audible alarm horn alerts
operator to blender fault.
Note: See Installation Packet supplied with unit for complete electrical schematics.