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Maintenance
WARNING
Disconnect and secure to the "Off" position all
electrical power to the fan prior to inspection
or servicing. Failure to comply with this safety
precaution could result in serious injury or death.
Once the unit has been put into operation, a
routine maintenance schedule should be set up to
accomplish the following:
1. Lubrication of the motor if required.
2. Propeller, housing and bolts on the entire fan
should be checked for tightness.
3. Any dirt accumulation on the propeller or in the
housing should be removed to prevent unbalance
and possible damage.
4. Inspection of fan propeller and housing looking for
fatigue, corrosion or wear.
Motors
Motor maintenance is generally limited to cleaning
and lubrication. Cleaning should be limited to
exterior surfaces only. Removing dust and grease
buildup on the motor housing assists proper motor
cooling. Never wash down the motor with high
pressure spray.
CAUTION
Do not allow water or solvents to enter the motor or
bearings. Under no circumstances should motors or
bearings be sprayed with steam, water or solvents.
Many motors are permanently lubricated for life and
require no further lubrication.
Consult fan manufacturer for instructions on the
removal or replacement motors.
Infrequent Use
Infrequent use is defined as a fan that is used
less than once per month or is used in emergency
situations only.
The fan should be run at least four hours every
month to ensure adequate lubrication in the motor
bearings. Ideally this would be two hours every other
week.
Fasteners and Set Screws
A periodic inspection should include checking all
fasteners and bolts for tightness. Particular attention
should be paid to the bushing attaching the propeller
to the motor shaft and the motor to its mounting
fixture.
Removal of Dust and Dirt
Dirt clogs the cooling openings on the motor
housing, contaminates bearing lubricant and collects
on the propeller causing severe imbalance if left
unchecked. The exterior surface of the motor and
propeller should be thoroughly cleaned periodically.
Use caution and do allow water or solvents to enter
the motor. Under no circumstances should motors be
sprayed with steam or water.
5
Jet Fan
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