Engineered Air HVAC Unit LM-1-K

Check if the fan has permanently lubricated sealed ball bearings

Is the bearing rotating slowly during lubrication?

Use lithium base lubricant for greasing

Record the shaft diameter and corresponding grease quantity used

Verify grease quantity by shaft diameter

Is the bearing temperature under 120°F (50°C)?

Refer to the fan and/or bearing manufacturers’ literature for additional information

Check set screws for looseness on the shaft

Tighten set screws where required

Record any observations or issues noted during the check

Refer to Table I for Bearing Setscrew Torques

Check set screws for looseness on the shaft

Tighten set screws where required

Record any issues found during the check

Ensure no overtightening of set screws to avoid bearing damage

Refer to Table I for Bearing Setscrew Torques

Consult bearing manufacturers’ literature for other types of bearings

Verify the SAE value of the oil based on operating temperature

Measure the oil’s operating temperature

Is the oil viscosity at least 100 SSU at the operating temperature?

Ensure the static oil level is at the center of the lower-most roller

Perform complete lubrication change

Lubrication of Dodge Fan Bearings — Ball Bearing Pillow Block

Select shaft diameter and speed (RPM) for lubrication schedule

Is it safe to re-lubricate while running?

Re-lubricate while running until some purging occurs at seals

Adjust lubrication frequency based on purged grease condition

Consider hours of operation, temperature, and surrounding conditions

Select grease type for lubrication

Lubricate bearings prior to extended shutdown or storage