Maintenance Procedures Continued
Page 16
BLADE REMOVAL AND INSTALLATION FOR 16” UNITS
The following procedures cover removal and installation for 16” Tempest fans.
BLADE REMOVAL PROCEDURES
1.
Remove the eight bolts holding the front grille in place and remove the grille (Figure
4.1 on page 15).
2.
Remove the three bolts from blade. Remove the two bolts from the bushing and hub.
Put the two bolts in the threaded part of the bushing and turn evenly until bushing
separates from hub.
BLADE INSTALLATION PROCEDURES FOR 16” UNITS
1.
Make sure that the shaft and keyway are clean and
smooth before installing the blade.
2.
Insert the cap screws through the clearance holes in
the bushing and place loosely into the hub of the
blade. Do not press the bushing in.
3.
Insert the cap screws, turning them just enough to
engage the threads in the tapped holes on the hub.
The bushing should be loose in the hub. Insert the
key into the keyway (Figure 4.6). Tighten two bolts
drawing the bushing and hub together.
4.
Slide the blade onto the bushing/hub assembly and
insert the three screws through the blade and turn
evenly but do not tighten. Make sure blade is in line
with hub then tighten screws (Figure 4.7). Locate
the blade and bushing so that the blade tips do not
hit the rear grille eyelets. On some models the blade
and bushing may be in beyond or out away from the
end of the shaft up to ¼” but no further. This is
necessary for proper blade clearance.
Figure 4.6
Figure 4.7
