The New York Blower Company Blower AF-70

Lubricate the coupling of direct-drive units and check for alignment

Refer to manufacturer's installation and maintenance supplement for lubrication details and alignment tolerances

Recheck alignment and gap after a short period of operation

Recheck the tightness of all fasteners in the coupling assembly

Check coupling alignment after permanent installation and prior to start up

Align the coupling to within the manufacturer's limits for parallel and angular misalignment

Is the coupling aligned within the manufacturer's specified limits?

Repack the bearing with fresh grease

Pack the bearing fully and fill the housing reservoir to the bottom of the shaft on both sides of the bearing

Replace the bearing cap, being careful not to mix caps, as they are not interchangeable from one bearing to another

Do not over lubricate split pillowblock bearings

Ensure electrical supply is completely disconnected and locked out

Block the rotating assembly securely

Inspect the fan wheel for issues

Is there any wear or corrosion on the fan wheel?

Is there any build-up of material on the fan wheel?

Clean or replace the fan wheel as required

Ensure the fan hub is not removed or loosened from the fan wheel

Verify the following components

Has the belt tension been rechecked after several days of operation?

Inspect if the belts have stretched after installation

Regrease mounted bearings and wrap with plastic for protection

Add additional grease to split housed bearings

Rotate the fan wheel and motor shaft by hand

Use caution when purging to avoid seal damage

Rotate the shaft while slowly adding grease