Loren Cook Company Ventilation Fan CPV 300

Verify lubrication instructions on motor nameplate

Determine relubrication interval based on RPM and installation type

Ensure use of compatible grease

Lubricate motor bearings with compatible grease

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 that all necessary tools are available

For Arrangement 1, 2, 8, 9 and 10

Mark the position on the shaft of both bearing races, setscrews, and the wheel and pulley.

Mark the location and orientation of the inlet cone.

Note the clearance between the wheel and inlet cone.

Remove the fan pulley and inlet cone.

Remove the wheel from the shaft using a 2-jaw puller if needed.

Remove bearing hold-down bolts and remove shaft and bearings as one unit.

Inspect belt wear and alignment

Refer to Belt and Pulley Installation

Inspect bearings as per Lubrication Conditions Chart

Does the entering air spin in the same direction as the wheel when vanes close?

Inspect springs and rubber isolators

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

Avoid excessive pressure to prevent seal damage

Use no more than three injections with a hand-operated grease gun if the bearing cannot be seen

Ensure no excessive grease is applied to avoid bursting seals

Verify any specialized lubrication instructions on fan labels or from bearing manufacturer