Loren Cook Company Ventilation Fan 195SQN-B

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

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

Is the motor installed vertically?

Confirm grease compatibility for motor bearings

Motor Bearings - NEMA Frame Size 213T-365T

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

Is the motor installed vertically?

Confirm grease compatibility for motor bearings

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 in slowly until a slight bead forms around the bearing seals

Motor Bearings - Standard Service Conditions, NEMA Frame Size 404T & larger

Is the motor installed vertically?

Motor Bearings - Severe Service Conditions, NEMA Frame Size up to & including 184T

Is the motor installed vertically?

Motor Bearings - Severe Service Conditions, NEMA Frame Size 213T-365T

Inspect bolts and setscrews for tightness. Tighten as necessary. Refer to Recommended Torque chart.

Inspect belt wear and alignment. Replace worn belts with new belts and adjust alignment as needed. Refer to Belt and Pulley Installation.

Inspect bearings as recommended in the Conditions chart.

Inspect for cleanliness. Clean exterior surfaces only. Removing dust and grease on motor housing assures proper motor cooling.

Inspect fans for corrosion or contamination within the first month of operation.

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 it correctly positioned?