10
MN1620
COOLING FAN INSTALLATION
WARNING: To ensure that drive is not unexpectedly started,
turn off and lock out or tag power source before proceeding.
Remove all external loads from drive before removing or
servicing drive or accessories. Failure to observe these
precautions could result in bodily injury.
Unpack all components and inspect for shipping damage. Do
not use any component that has been damaged or modified.
Make sure all components are clean and free of any foreign
material prior to assembly. Cooling fan assembly is designed to
fit onto the input shaft before placement of sheaves or belt guard
assembly.
Installation for TA4207CFM and TA5215CFM
1. Referring to Figure 8, install tapered bushing (9) into bore
of fan blade assembly (2) and loosely install the three set
screws provided with fan. Snug set screws but do not tighten
at this time.
2. Slide fan assembly onto input shaft and install input shaft key.
Note: Key is supplied with the TAll reducer. Locate fan blade
edge distance “A” (Figure 8) from end of shaft per Table 6.
Make sure fan assembly rotates without interference when
input shaft is rotated.
3. Alternately tighten the set screws until fan assembly is
securely installed on the input shaft.
4. Recheck fan assembly for proper location and clearance.
Loosen set screws and repeat steps 2 and 3 above if not
properly located.
Installation for TA6307CFM through TA12608CFM
1. Referring to Figure 8, install fan guard back plate assembly
(1) using the four bolts (4) provided. Note that the screen
is mounted towards the reducer. Tighten to recommended
torque in Table 5.
CAUTION: Fan guard screen has sharp edges. Use
caution when installing to avoid lacerations.
2. Slide fan blade assembly (2) onto input shaft and install
key and set screws (5). Note: Key is supplied with the TAll
reducer. Position fan blade edge distance “A” (Figure 8) from
end of shaft per Table 6. Make sure fan assembly rotates
without interference when input shaft is rotated. Tighten the
two fan blade set screws (5) securely.
3. Install fan guard cover (3) with four bolts (6), lockwashers (7),
and hex nuts (8). Tighten securely.
4. Verify fan blade rotates freely and does not interfere with fan
guard back plate (1) or fan guard cover (3). Adjust fan blade if
necessary.
Table 6–Dimensions and Bolt Torque
Reducer Size
Dim. “A” mm
Torque (N-m)
TA4207HM
95
.....
TA5215HM
117
.....
TA6307HM
108
40–45
TA7315HM
111
40–45
TA8407HM
129
40–45
TA9415HM
159
40–45
TA10507HM
159
40–45
TA12608HM
163
40–45
A
A
TYPICAL FOR REDUCER SIZES 4 AND 5
TYPICAL FOR REDUCER SIZES 6 THRU 12
Figure 8 - Fan Blade Placement
Summary of Contents for Ratios 15
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