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Course Commutator Maintenance

Commutator Maintenance

In iKnow
This is the eleventh lesson in the iKNOW AC/DC Motor Maintenance Library. The lesson demonstrates the process of preparing a commutator for reconditioning, how to properly cut mica, how to check the commutator after maintenance, and explains the purpose of performing a commutator run-in procedure. <br /><br />
Course Conduit Bending

Conduit Bending

In iKnow
This is the second lesson in the iKNOW Conduit Installation Library. This lesson instructs the learner in the proper methods of cutting, cleaning, and bending conduit. The lesson also demonstrates how to make various bends and when different bends are used. <br /><br />
Course Clamps, Vises, and Pliers

Clamps, Vises, and Pliers

In iKnow
This is the first lesson in the iKNOW&reg Hand Tools Library. This lesson introduces and demonstrates the proper use of tools used for holding. <br /><br />
Course Commutator Inspection

Commutator Inspection

In iKnow
The ninth lesson in the iKNOW&reg AC/DC Motor Maintenance Library, this lesson shows participants how to identify some problems that affect the commutator. <br /><br />
Course Capacitance

Capacitance

In iKnow
This is the eighth lesson in the iKNOW Electrical Theory for Troubleshooters Library. This lesson explains capacitors, their function, and how capacitance affects AC circuits. <br /><br />
Course Building Electrical Diagrams

Building Electrical Diagrams

In iKnow
This is the sixth lesson in the iKNOW Electrical Print Reading Library. This lesson presents the different views used in electrical diagrams as well as how to identify components, cables, and conduits. The cable chart is also presented. <br /><br />
Course Brush Maintenance

Brush Maintenance

In iKnow
This is the final lesson in the iKNOW&reg AC/DC Motor Maintenance Library. The lesson describes how to select and inspect brushes. The lesson identifies the procedures for cleaning, inspecting, and setting the height of a brush holder. How to seat brushes and adjust spring pressure is demonstrated. <br /><br />
Course Analyzing Bearing Failure

Analyzing Bearing Failure

In iKnow
This is the second lesson in the iKNOW Bearings Library. This Lesson explains the purpose of bearings and demonstrates how bearings reduce friction and maintain the alignment of operating equipment. The basic operation of anti-friction bearings and plain journal bearings is demonstrated as well as the importance of full fluid film lubrication and proper lubrication clearance. Additionally, indications of various premature bearing failures are discussed. <br /><br />
Course Basic Electrical Properties

Basic Electrical Properties

In iKnow
This is the second lesson in the iKNOW&reg Electrical Theory for Troubleshooters Library. This lesson covers Ohm's Law and the use of Ohm??s Law to calculate an unknown value. It also defines voltage, current, resistance, and power. <br /><br />

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