Invacare FDX Service Manual page 109

Installing the motor / gearbox coupling:
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Place the new coupling (2) on the motor axle (3). Pay attention to the position of the groove.
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Carefully insert the motor into the gearbox. Pay attention to the position of the groove in the
axle of the gearbox (4). If necessary, rotate the motor and gearbox to the correct position.
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Install the sealing ring so that the square hole for the carriage bolt is on the inside of the
wheelchair.
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Insert the carriage bolt through the sealing ring.
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Install the washer and the self-locking nut.
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Do not tighten the self-locking nut completely, as the motor orientation must be adjusted
during installation.
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Install the motor / gearbox unit, as described in chapter 8.13.1.
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