TECO Electric Motor AEGHPE-CF

5.6.2 Regular examination — Periodical change of oil

Determine the need for oil change based on conditions

Is there contamination in the oil reservoir?

Flush the reservoir with kerosene if contamination is present

Thoroughly drain the reservoir of the flushing material

Refill the reservoir to the center of oil sight glass with a rust and oxidation inhibited turbine grade oil

Refer to the outline and lubrication nameplate for the correct viscosity and record it here

Was the oil reservoir refilled correctly?

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, ambient temperature, and cooling water

Check lubrication nameplate for oil viscosity range

Determine 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

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

Has the oil been removed from the housing for long periods of storage?

2.6 Bearing protection — anti-friction bearings

Rotate the shaft several revolutions to maintain grease distribution

Has a significant period of time elapsed since manufacture or during storage?

Re-grease the bearings if necessary

Replenish and purge with fresh grease at start up

Is the carbon brush worn to 1/2 ~ 3/4 of its original size?

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

Verify the brush material on the motor's nameplate

Record the recommended brush material type

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

Is the gap between the brush and its holder within the recommended range?