Loren Cook Company Ventilation Fan 330SQN-B

Adjust and tighten belt as necessary

Is the fan operating smoothly without unusual noises?

Ensure all tools are removed from the work area

Is the motor installed vertically?

Use polyurea mineral oil NGLI #2 grease for lubrication

Use compatible grease for lubrication

Lubricate the motor bearings as per the specified interval

Fill the bearings with grease or moisture-inhibiting oil if the fan is stored for any length of time prior to installation.

Refer to Lubricants on page 5 for guidance.

Ensure the fan is stored properly

Inspect bolts and setscrews for tightness

Inspect belt wear and alignment

Inspect bearings as recommended in the Conditions chart

Remove dust and grease on motor housing to assure proper motor cooling

Inspect fans exhausting corrosive or contaminated air within the first month of operation

Check for specialized lubrication instructions on fan labels.

Is the fan in operation during lubrication?

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

Is the bearing visible during lubrication?

Number of grease injections used with hand operated grease gun (if bearing is not visible)

Adjust greasing interval based on conditions