Nautilus Schwinn 800IC Service Manual page 63

7. Using a #2 Phillips screwdriver, remove the indicated hardware from
the Drive Belt Cover. Carefully remove the Drive Belt Cover and set it
safely aside for reassembly.
Note: The oval indicates the two machine screws with washers.
8. Mark the position of the Flywheel Axle Nut on the Flywheel Bracket.
Also record the number of threads showing on the Tensioner Eyebolt, or
Flywheel Tensioners, on each side of the Tensioner Support Bracket.
9.
To loosen the Flywheel hardware, use a 15mm crescent wrench to
hold the Flywheel Axle Nut on one side steady and loosen the Flywheel
Axle Nut on the opposite side with a 15mm socket and wrench. Remove the
Flywheel Axle Nuts from the Flywheel Axle. Set the hardware safely aside for
reassembly.
Drive Belt Cover
Note: Please disregard the Right Crank Arm in the above
image. It was removed during an earlier step.
Flywheel Bracket
63
Tensioner Eyebolt
Tensioner
Support
Bracket
Flywheel Axle Nut