Schwinn 9-7310 Service Manual page 18

Thread a crank puller tool with the larger 16.5mm tip into
7.
the crank arm, then use the tool to pull the crank arm off
the bottom bracket.
8. Repeat on user left.
9. Use a 35mm open-ended wrench to remove the bottom
bracket retaining nut.
10. Use a rubber mallet to tap the bottom bracket shaft and
one of the bearings from the user right side and out of the
left side of the box.
11. Remove the bottom bracket shaft and bearings from the
frame.
12. Apply red loctite #620 to both bearings then install the new
bottom bracket.
Page 18