Greenheck Downblast Centrifugal Roof Exhaust GB-180HP

Inspect bolts, setscrews, and motor mounting bolts

Adjust and tighten as necessary

Disconnect all electrical power to the fan and secure to the 'off' position

Remove fuses and lock off the disconnect

Check for oil and dust accumulation on the wheel and housing

Clean the wheel evenly to prevent imbalance

Is the wheel balanced after cleaning?

Fasteners and Setscrews Inspection

Check all fasteners and setscrews for tightness

Does the wheel rotate freely and is it aligned as shown in Figure 7?

Was the wheel position verified for movement during shipment?

Was the centering height alignment accomplished by loosening the set screws and moving the wheel to the desired position?

Lubrication Frequency Assessment

Select the type of service environment

Ensure the use of a good quality lithium base grease, conforming to NLGI Grade 2 consistency

Apply grease to the bearing as per the selected service environment frequency

Is the lubrication process completed without any issues?

Describe any unusual conditions observed during lubrication

Ensure safety precautions are in place around moving parts

Verify the use of high grade lithium base grease

Check hand gun pressure rating (maximum 40 psi)

Enter the number of lubricant shots used (1 or 2 recommended)

Rotate bearings during lubrication if safe to do so

Ensure a slight bead forms around the seal during lubrication