Loren Cook Company Ventilation Fan CPS 120

Establish a schedule for inspecting all parts of the fan

Determine the frequency of inspection based on operating conditions and location of the fan

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

Are the motor bearings operating under severe conditions?

Disassemble the motor bearings for inspection and lubrication if necessary.

Reassemble the motor bearings after lubrication.

Describe any issues found during the inspection.

Test the fan to ensure the rotation of the wheel is the same as indicated by the arrow marked Rotation

Inspect fasteners and setscrews, particularly fan mounting and bearing fasteners, and tighten according to the table, Recommended Torque for Setscrews/Bolts

Inspect for correct voltage with voltmeter

Ensure all accessories are installed

Lock out all the primary and secondary power sources

Ensure fasteners and setscrews, particularly those used for mounting the fan, are tightened

Check shaft size and operation hours

Is the fan operating under extreme conditions (dirty/wet/rough)?

Is the fan operating at higher temperatures above 120°F?

Clean the grease nipple and immediate vicinity thoroughly without high pressure equipment

Is the fan in operation during lubrication?

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

Avoid excessive pressure to prevent seal damage

Ensure all belt driven fans with motors up to and including 5HP are equipped with variable pitch pulleys

Loosen setscrew on driver (motor) pulley and remove key, if equipped

Turn the pulley rim to open or close the groove facing

If the pulley has multiple grooves, ensure all are adjusted to the same width

Inspect for proper belt tension after adjustment

Select the desired speed adjustment

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