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Storage
• Rotate fan wheel monthly and purge bearings once every three months.
• Energize fan motor once every three months.
• Store belts flat to keep them from warping and stretching.
• Store unit in a location which does not have vibration.
• After storage period, purge grease before putting fan into service.
If storage of fan is in a humid, dusty or corrosive atmosphere, rotate the fan and purge the bearings once a
month. Improper storage which results in damage to the fan will void the warranty.
Fans are protected against damage during shipment. If the unit cannot be installed and operated immediately,
precautions need to be taken to prevent deterioration of the unit during storage. The user assumes responsibility
of the fan and accessories while in storage. The manufacturer will not be responsible for damage during storage.
These suggestions are provided solely as a convenience to the user.
INDOOR -
The ideal environment for the storage of fans and accessories is indoors, above grade, in a low humidity
atmosphere which is sealed to prevent the entry of blowing dust, rain or snow. Temperatures should be evenly
maintained between 30° to 110°F (-1° to 43°C), wide temperature swings may cause condensation and "sweating"
of metal parts. All accessories must be stored indoors in a clean, dry atmosphere.
Remove any accumulations of dirt, water, ice, or snow and wipe dry before moving to indoor storage. To avoid
"sweating" of metal parts allow cold parts to reach room temperature. To dry parts and packages use a portable
electric heater to remove any moisture build up. Leave coverings loose to permit air circulation and to allow for
periodic inspection.
The unit should be stored at least 3-1/2 inches (89 mm) off the floor on wooden blocks covered with moisture
proof paper or polyethylene sheathing. Aisles between parts and along all walls should be provided to permit air
circulation and space for inspection.
OUTDOOR -
Fans designed for outdoor applications may be stored outdoors, if absolutely necessary. Roads or
aisles for portable cranes and hauling equipment are needed.
The fan should be placed on a level surface to prevent water from leaking into the fan. The fan should be
elevated on an adequate number of wooden blocks so it is above water and snow levels and has enough
blocking to prevent it from settling into soft ground. Locate parts far enough apart to permit air circulation,
sunlight and space for periodic inspection. To minimize water accumulation, place all fan parts on blocking
supports so rain water will run off.
Do not cover parts with plastic film or tarps as these cause condensation of moisture from the air passing
through heating and cooling cycles.
Fan wheels should be blocked to prevent spinning caused by strong winds.
Removing from Storage
As fans are removed from storage to be installed in their final location, they should be protected and maintained
in a similar fashion until the fan equipment goes into operation.
Prior to assembly and installation of the unit and system components, inspect the fan assembly to make sure it
is in working order.
1. Check all fasteners, set screws on the fan, wheel, bearings, drive, motor base and accessories for tightness.
2. Rotate the fan wheel by hand and assure no parts are rubbing. Access to the wheel is obtained through a
bolted panel located on the side of the fan housing.
3. Ensure proper wheel settings for radial gap and alignment. Refer to Radial Gap, Overlap and Wheel Alignment
sections.
Service Clearance Requirements
We do not recommend any specific clearance requirements for the USF line-up. Every application, location and
customer is different. It is left up to the discretion of the customer to decide what is required for them to be able
to access and service the unit.
®
Universal Single Width Fans
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