Loren Cook Company Ventilation Fan 80SQN-B

Push bearing cover toward the wheel

Remove any burrs from the shaft by sanding

Slide new bearings onto the shaft to the desired location and loosely mount bearings onto the bearing support

Correctly position the wheel and tighten the bearing bolts securely to the bearing support

Align setscrews bearing to bearing and secure tightly to the shaft

Inspect the wheel position again. Is the wheel correctly positioned?

Ensure fan bearings are prelubricated

Check for any specialized lubrication instructions on fan labels

Verify bearing grease is a petroleum lubricant in a lithium base conforming to an NLGI #2 consistency

Is the lubricant compatible with the installation?

Relubricate bearings according to the condition chart

Lubricate the bearing while the fan is in operation

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

Check for specialized lubrication instructions on fan labels.

Is the fan in operation during lubrication?

Enter the number of grease injections used

Did a slight bead form around the bearing seals after lubrication?

Is the installation moist or contaminated?

Is the shaft installation vertical?

Ensure fan bearings are prelubricated

Check for specialized lubrication instructions on fan labels

Verify bearing grease is a petroleum lubricant in a lithium base conforming to an NLGI #2 consistency

Is a different type of lubricant being used?

If using a different lubricant, describe the flushing and maintenance process

Relubricate bearings according to the condition chart

Lubricate the bearing while the fan is in operation for best results

Motor Bearings - NEMA Frame Size up to & including 184T

Verify relubrication intervals for NEMA Frame Size up to & including 184T

Is the motor a vertical shaft installation?

Confirm grease compatibility for NEMA Frame Size up to & including 184T

Motor Bearings - NEMA Frame Size 213T-365T

Verify relubrication intervals for NEMA Frame Size 213T-365T

Is the motor a vertical shaft installation?

Confirm grease compatibility for NEMA Frame Size 213T-365T