Nautilus Schwinn 800IC Service Manual page 44

Note: Your machine may not match the image. For reference only.
1. Unplug the AC Adapter from the wall outlet and machine.
2. Fully turn the Resistance Knob clockwise to lock the Flywheel into
place.
3. Using a flathead screwdriver, remove the threaded Cap from the
Right Crank Arm.
4. Using a 16mm socket and wrench, remove the Flange Nut under the
threaded Cap.
5.
Thread the Crank Puller into the Crank Arm (A). When the Crank
Puller is in the correct position, only 1-2 threads on the outer portion (CP2)
of the Crank Puller should show.
Note: Be sure the end of the Bolt (CP1) in the Crank Puller is flush
with the inner surface (CP2) as shown, before use.
CP1 CP2
6.
Using a 15mm wrench, turn the inner portion (CP3) of the Crank
Puller clockwise. The Crank Arm will slide off as it is tightened.
Crank Arm
CP3
44
Resistance Knob
Cap
Note: Pedal not shown.
Flange Nut