Nautilus Schwinn 800IC Service Manual page 60

28. Install the Crank Nut onto the Crank Shaft, and fully tighten it.
29. Replace the threaded Cap onto the Crank Arm.
30. Final Inspection
Inspect your machine to ensure that all hardware is tight and components
are properly assembled.
Do not use until the machine has been fully assembled and
inspected for correct performance in accordance with the
Owner's Manual.
60
Crank Nut