MOORE FANS LLC, Marceline, MO 64658 Phone (660 ) 376-3575 FAX (660) 376-2909
Page 5
TMC-647-(Rev E) - 01/06
2.3 INSTALL AIR SEAL (IF REQUIRED)
Air Seal Installed on Automatic Hub
(Shown without Optional Positioner)
Air Seal Installed on Manual Hub
ALUMINUM NUT
AIR SEAL
ALUMINUM WASHER
ALUMINUM WASHER
RESILIENT WASHER
RESILIENT WASHER
CLAMP STUD
CLEVIS
ALUMINUM NUT
AIR SEAL
FAN HUB
ALUMINUM WASHER
ALUMINUM WASHER
RESILIENT WASHER
RESILIENT WASHER
UPPER TO LOWER PLATE
BOLT
AIR SEAL INSTALLATION ON MANUAL HUB
AIR SEAL INSTALLATION ON AUTOMATIC HUB
HUB
TUBE
All Model 5400 fans are provided with air seals except
for Series 19. Whenever practical, the air seal is installed at the
factory before shipment. On orders consisting of more than
a small number of fans, however, the air seals are crated
separately and must be installed in the field.
When field installed, the air seal may be installed on the
fan hub before the hub is installed on the shaft or bushing if
it is more convenient to do so. The air seal, however, must not
be used to lift the hub.
When the installation design requires the drive shaft to
be located above the fan, the air seal is provided with a center
hole through which the drive shaft can extend. In this case, the
air seal must be installed on the hub before the hub is
installed.
To install, locate the air seal installation hardware in the
plastic bag taped to one of the hub tubes. Remove the protec-
tive plastic caps from the bolts or studs. Place one aluminum
washer and one resilient washer on each bolt or stud as shown
in the drawings below. Lower the air seal onto the bolts or
studs and install the remaining hardware, following the
sequence shown in the drawings. Do not lubricate this end of
the bolts or studs.
Note that the diameter of the resilient washers, before
they are compressed, is slightly less than the diameter of the
aluminum washers. Tighten each nut until the resilient
washer's diameter is the same as the aluminum washer. Do
not overtighten. Overtighteness exists when the resilient
washer has expanded in diameter larger than the diameter of
the aluminum washer.
Note: Some air seals are provided with more mounting
holes than may be required. This is done intentionally to
make the air seals more interchangeable between units.
For example, an air seal with 8 mounting holes can be
used with either a 4-blade or an 8-blade unit.
INSTALLATION
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