Schwinn 490e Service Manual page 78

3. Using a #2 Phillips screwdriver, remove the screw that
secures the Right and Left Main Shrouds just above the
exposed Flywheel.
4. Using a #2 Phillips screwdriver, remove the screw
(indicated by oval) that secures the Left Main Shroud to the
Frame.
Right Main
Shroud
78
Left Main
Shroud
Left Main
Shroud