Nautilus E618 Service Manual page 65

17. To remove the indicated hardware (by oval) from the Flywheel,
use a 17mm open end wrench to hold the nut on one side steady
and remove the nut on the opposite side with the 17mm socket
and wrench. Set the hardware safely aside.
18. Adjust the angle of the Tensioner Assembly to allow the
Flywheel to move forward. Remove the Flywheel from the Frame
Brackets and the Drive Belt.
The Flywheel is heavy. This step may require two
people.
19. Remove the old Drive Belt after noting how to properly route
the new Belt.
20. Hold the Flywheel near the Frame Brackets and put the new
Drive Belt in position on the Flywheel Pulley. Put the Drive Belt in
position around the Tensioner Assembly. Be sure that the upper
portion of the Drive Belt is under the Tensioner Bearings on the
Tensioner Assembly.
The Flywheel is heavy. This step may require two
people.
21. Center the Flywheel Axle in the Frame Brackets and hand
tighten the hardware on each end of the Flywheel Axle.
22. Put the Drive Belt onto the Drive Pulley. Make sure the Drive
Belt is aligned on the Flywheel Pulley, Belt Tensioner and Drive
Pulley.
23. Before you fully tighten the Flywheel hardware, adjust the
Tensioner Bolt to the recorded length and tighten the hardware
Tensioner Nuts. Make sure that the belt tension is correct.
Flywheel
Tensioner Assembly
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Tensioner Bearings
Flywheel Pulley
Frame Bracket