Loren Cook Company Ventilation Fan 135SQN-B

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?

Adjust lubrication interval based on installation conditions

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?

Number of grease injections used with hand operated grease gun

Is the installation moist or contaminated?

Is the shaft installation vertical?

Was a slight bead of grease formed around the bearing seals?

Ensure fan bearings are prelubricated

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?

Is there any excessive grease around the seals?

Loosen setscrew on motor pulley

Adjust the groove facing to change the pitch diameter

Ensure RPM limits of the fan and the horsepower limits of the motor are maintained

Retighten pulley setscrew on one of the flat areas of the motor shaft

Check for proper belt tension after adjustment

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