Loren Cook Company Wall Exhauster ACRU 300

Check the fan speed and temperature range

Pump grease slowly until a slight bead forms around the bearing seals

Number of grease injections used

Is the installation contaminated or vertical shaft?

Inspect and adjust as necessary

Motor Bearing Inspection Preparation

Ensure motor is powered off and locked out

Gather necessary tools and materials

Verify service conditions and NEMA frame

Bearing Inspection and Maintenance

Inspect motor bearings for signs of wear or damage

Is relubrication required based on motor nameplate instructions?

Select compatible grease for relubrication

Is the grease used compatible with polyurea mineral oil NLGI #2?

Inspect motor bearings for wear and tear

Ensure fan is in operation before lubrication

Enter the current temperature (°F)

Pump grease slowly until a slight bead forms around the bearing seals

If bearing is not visible, perform up to three injections with a hand-operated grease gun