Loren Cook Company Ventilation Fan CPS 135

Check lubrication interval conditions

Clean grease nipple and 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

Is the bearing visible during lubrication?

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

Was excessive pressure avoided during lubrication?

Are there any specialized lubrication instructions on fan labels or from the bearing manufacturer?

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

For Speed Reduction, open the pulley so the belt rides deeper in the groove (smaller pitch diameter)

Coat the shaft with grease or a rust preventative compound.

Wrap bearings for weather protection.

Cover the inlet and outlet to prevent the accumulation of dirt and moisture in the housing.

Periodically rotate the wheel and operate dampers (if supplied).

Periodically inspect the unit to prevent damaging conditions.

Check motor nameplate for lubrication instructions

Select the appropriate relubrication interval based on RPM and installation type

Verify the use of polyurea mineral oil NGLI #2 grease

Ensure grease compatibility with Exxon Mobil Polyrex EM or Chevron SRI

Check for severe application conditions