Twin City Hooded Propeller Fans (Non-Filtered) - IM-4860NF - Manual (Page 2)

2 Twin City IM-4860NF Twin City IM-4860NF 3
Locking Tab,
rotate into place
and tighten
Step 1 – Install Hood Mount Bars
Fasteners (Kit #1):
Cap Screw, Serrated Flange, 3/8-16 x 0.75
Hex Nut, Serrated Flange, 3/8-16
A. Assemble Hood Mount Bars on both sides
of the fan housing, using cap screws and
nuts.
B. Assemble four Hood Gussets using cap
screws and nuts. The bottom holes on the
gussets attach to the curb stop fasteners,
which are already installed on the fan hous-
ing. One at a time, remove the screws and
attach the gussets.
Nut
3/8-16 x .75
Cap Screw
Hood Mount
Bar
Fasteners are already
installed (four places)
Fan Housing
Side Panel
Step 2 – Install Fixed Screens
Fasteners (Kit #6):
Cap Screw, Serrated Flange, 5/16-18 x 0.75
Hex Nut, Serrated Flange, 5/16-18
Nut Clips, 5/16-18
A. Install nut clips onto Fan Housing Side Panel
flanges as shown.
B. Install two Fixed Screen Assemblies using
cap screws and nuts. Do not fully tighten
these fasteners. They will be fully tightened
in the next step.
Step 3 – Install Removable Screens
A. Install two Removable Screen Assemblies.
After positioning the assemblies, rotate the
locking tabs in place and tighten.
B. Fully tighten the Fixed Screen assembly fas-
teners from the previous step.
Bird
Screen
Assy,
Fixed
Fan Housing
Side Panels
5/16-18
Nut Clips
5/16-18
Cap Screws
5/16-18
Hex Nuts
Bird Screen
Assy, Fixed
Detail of locking tabs
Bird Screen
Assy, Removable
Step 4 – Install Hood Side Rails
Fasteners (Kit #1):
Cap Screw, Serrated Flange, 3/8-16 x 1.25
Hex Nut, Serrated Flange, 3/8-16
A. Install two Hood Side Rail Assemblies to the
Hood Mount Bars using cap screws and nuts.
Do not fully tighten fasteners. They will be
tightened in Step 7.
Hood Side
Rail Assy
Hood Side Rail Assy
3/8-16 x 1.25
Cap Screws
and Hex Nuts
End Panel Assy,
Male
IMPORTANT - This flange must
be male. Refer to the detail below.
Male Flange
(Narrow)
Female Flange
(Wide)
End View of Panel
Step 5 – Install End Panel Assy
(Male)
Fasteners (Kit #1):
Screws, #12
A. Install the End Panel Assembly (male type)
using #12 screws.
Hood Panels
Step 6 – Install Hood Panels
Fasteners (Kit #1):
Screws, #12
A. Install the Hood Panels using #12 screws.
B. On sizes 54 and 60, hood clips must be
installed at each interlocking rib while install-
ing the panels. Position the Hood Panel in
place and reach underneath to slide the clip
into place.
For Sizes 54 and 60,
install hood clips at each rib.
#12
Screws
Hood Side
Rail Assy
Hood
Panels
Hood Clip
End View of Panel