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3
Figure 10
1. Motor coupler
2. Fan coupler
3. Tighten the capscrews and nuts securing the
mounting brackets together and to the blower
housing.
4. Remove the alignment tool and finish assembly.
Torquing Fasteners
If the blower is ever disassembled, the following
fasteners must be torqued as specified. Also, apply
Loctite 242 to the threads before installing.
• The set screws securing the motor and fan
shaft couplers (Figure 10) must be torqued to
58 to 82 in–lb.
• The fan shaft bearing set screws (Figure 11)
must be torqued to 58 to 82 in–lb.
2
4
G003815
1
3. Set screw (2 each)
4. Coupler spider
G003816
Figure 11
1. Set screw
• The fan mounting nut (Figure 12) must be
torqued to 500 ft–lb.
1
G003817
Figure 12
1. Fan mounting nut
10
1
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