Sidewall Propeller Fans
6
®
DANGER
Always disconnect, lock and tag power source before
installing or servicing. Failure to disconnect power
source can result in fire, shock or serious injury.
Once the fan has been put into operation, a periodic
maintenance program should be set up to preserve the
reliability and performance of the fan. Items to be
included in this program are fasteners and setscrews,
lubrication, and removal of dust and dirt.
Fasteners and Setscrews
Any fan vibration has a tendency to loosen mechanical
fasteners. A periodic inspection should include checking
all fasteners and setscrews for tightness. Particular
attention should be paid to setscrews or taper-lock
bushings attaching the propeller to the motor shaft and
the motor shaft to the bearings. In addition, check all
fasteners attaching the motor to the motor plate.
Lubrication
Many fractional horsepower motors installed on
the smaller fans are lubricated for life and require
no further attention. Motors equipped with oil holes
should be oiled in accordance with the manufacturer’s
instructions printed on the motor. Use a high grade SAE
20 machine oil and use caution not to over lubricate.
Motors supplied with grease fittings should be greased
according to directions printed on the motor.
Removal of Dust and Dirt
Dirt clogs cooling openings on the motor housing,
contaminates bearing lubricant and collects on propeller
blades causing severe imbalance if left unchecked.
The exterior surface of the motor, fan panel and entire
propeller should be thoroughly cleaned periodically.
Use caution and do not allow water or solvents to enter
the motor or bearings. Motors or bearings must not be
sprayed with steam or water.
Maintenance
