Test Electric
Engine Windings
When a malicious Engine winding cannot be get going by a physical inspection, many times an ohmmeter may manifest that there is a wick winding. Most repair shops Testament applicability a "megger" or a ground insulation tester. The megger Testament assist to detect areas of deteriorating insulation where the windings may soon short.3. Connect the probes to the ohmmeter and set the meter to a midrange setting. Touch the two leads together and make sure that the meter indicates continuity, or zero ohms.
1. Remove all authority from the Engine and isolate the direction. Tag the circuit breaker to prevent accidental restoration of power. Open motor housing to access windings.
2. Clean the windings and motor interior with shop air and inspect for any damage. Check winding insulation for cracks or brittleness.
Most individuals close not own a megger, however probably accomplish bear an ohmmeter. While the ohmmeter may not parade practicable failures, it can be used to actuate whether the windings are crack or evil.
Instructions
4. Consult the motor schematic or a diagram of the motor's windings and use the meter To gauge the resistance of the windings. Each winding leg should have some small resistance reading. The meter should not show an "open" or a "short" when a winding leg is measured.
5. Use the schematic and take readings of all of the windings. Write down each measurement and make comparisons when measurements are complete.
