Maintenance and Technical Manual
Chapter 2
Interceptor Biological Safety Cabinet Class II A2
October 2019
2.5
Fan Removal and Replacement
Once the BSC is decontaminated and the Air Chamber Access Panel is removed,
removal and replacement of the fan requires the unbolting of the fan from inside the
Plenum Chamber as outlined in the steps below:
Figure 2.6 Attachment of Fan to Inner Plenum Chamber – (Model INT-1400 shown in photo)
1) Remove the exhaust filter (see filter replacement instruction)
2) Remove the Color-coded Wires from the Fan.
3) Remove the Plenum Access Cover Panel.
4) Remove the Bolts holding Fan in place. The two lower Bolts are accessible
from inside the Plenum Chamber.
5) Carefully dislodge the Fan from its cushioned Gasket and remove from the
Plenum.
6) Inspect the Fan mounting surface on the Plenum and remove any Gasket
material that may have stuck to the surface.
6) Install replacement Fan by reversing the steps above. (Make sure new Fan has
been fitted with attachment nuts and new Gasket).
Replacement fans are available from Kewaunee Scientific Corporation. See
page 3.7 for part numbers.
Plenum Access
Cover Panel
Fan
Fan Gasket
Color-coded Wires
Fan Bolts
(access from inside Plenum)
(nuts are attached to fan frame)
Fan Bolts
(removal required for
fan replacement only)
