TECO Electric Motor AEEAFP

Bearing protection — tilt-pad bearings

Remove the pipe plug from the bearing cap located above the tilt-bearing shell

Pour in approximately one cup of oil

Rotate the shaft a few revolutions

Is the oil removed from the housing for long periods of storage?

Change the oil at regular intervals

Determine if special conditions require more frequent oil changes

Avoid operating the motor with oxidized oil

Use only good grade, oxidation-corrosion-inhibited turbine oils

Specify the viscosity of the oil based on bearing type, size, load, speed, and ambient temperature

Check if operation in ambient temperatures near or below freezing requires preheating the oil or special oil

Ensure oil-metering hole is clear and housing is dry before re-assembly

Inspect the check valve and stop valve in the discharge line

Ensure the check valve is protecting the pump from reverse flow and excessive backpressure

Verify the stop valve is used correctly during priming, starting, and shutting down the pump

Close the stop valve before stopping the pump

Is the pump operated against a high static head?

Describe any issues found during inspection

Check the wear level of the carbon brush

Replace the carbon brush if worn to 1/2 ~ 3/4 of original size

Verify the brush material against the motor's nameplate

Record the recommended brush type from the nameplate

Refer to CNS 2322 C4051 or JIS C2802 for brush, holder, and gap dimensions

Ensure the gap between the brush and its holder is within recommended limits

5.4 Clean the exterior of the motor

Check for dirt, lint, or debris on screens and louvers over inlet air openings

Ensure motor is not in operation before cleaning screens and louvers

Clean the external fan thoroughly to prevent unbalance and vibration

Clean all tubes of the air-to-air heat exchanger using a synthetic fiber bristle tube brush