Nautilus Schwinn 800IC Service Manual page 34

4. Using a 16mm socket and wrench, remove the Crank Nut under the
threaded Cap.
5. Thread the 25mm Crank Puller into the Crank Arm. 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.
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. Discard the
old parts.
7. Place the new Crank Arms onto the Crank Shaft. Be sure the Crank
Arms are connected at 180° from each other.
8. Add Loctite 272 (or equivalent) to the inner threads of the Crank
®
Nuts. Do not to apply the Loctite
9. Install the Crank Nut onto the Crank Shaft, and fully tighten it. Repeat
on the other side of the bike.
272 to the Crank Shaft.
®
Crank Nut
CP1
Crank Shaft
34
Crank Nut
CP2 CP3