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Printed In Canada 01524r10.doc TAC2000/TAC3000 Manual 12/03/2009 Page
4
Fan Position
Ideally the fan should be centered in the shroud
(30-70% immersion is acceptable). This may
require modification or removal of the fan spacer or
modification of the shroud. See
Figure 2
.
Figure 2
A.
Install the Flexxaire supplied mounting
adapter using bolts from the original fan. If
the bolt length needs to be changed, use an
equivalent or better grade of bolt. Follow
original equipment manufacturer’s torque and
thread locking specifications when installing
the mounting adapter to the fan drive. Refer
to
Figure 3
.
Figure 3: Adapter Plate Mounting
B.
Set up dial gauge to measure axial deviation
of the mounting adapter on the fan mounting
surface. Deviation should not exceed 0.005”.
Refer to
Figure 3
.
C.
Set up dial gauge to measure radial deviation
of the mounting adapter on the 1” pilot hole
surface. Deviation should not exceed 0.005”.
Refer to
Figure 3
.
D.
Remove the silicon shipping plugs from the
rear of the fan. Place the TAC2000/ TAC3000
fan onto the mounting adapter, and torque
the 3/8” bolts to 40 Ft-Lbs (54 N.m). Do not
use loctite. Refer to
Figure 4
.
Figure 4
3.0.
ATTACHING THE BLADES
Your Flexxaire fan shipped with the fan blades
unattached. Care must be taken to ensure the
blades are attached correctly. If the primary
operation of the fan is to “pull” air towards the
engine, the blades must be mounted with the
concave surface towards the engine (assuming the
fan rotates counter clockwise, as viewed from the
engine towards the fan). If the primary operation of
the fan is to “push” air away from the engine, the
blades must be mounted with the concave surface
away from the engine. Refer to
Figure 6
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