The New York Blower Company Blower BC-50

Verify the following components

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

Inspect if the belts have stretched after installation

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

Ensure electrical supply is disconnected and locked out

Check all setscrews and bolts for tightness

Refer to the corresponding table for correct torques

Recheck setscrews after operation

Refer to Table 1 for wheel setscrew torques

Refer to Table 2 for bearing setscrew torques

Shut down fan if there is a sudden increase in vibration

Purge fan and motor bearings with new grease

Rotate the shaft while slowly adding grease

Ensure electrical supply is disconnected and locked out

Check the V-belt drive for proper alignment and tension

Check belt tension with a tensioning gage

Adjust belt tension using the motor slide base

Replace worn belts as a set, matched to manufacturer's tolerances

Check sheave alignment with a straightedge

Check setscrew and/or bushing bolt tightness