Schwinn 9-7300 Reference guide

Technical Procedure
Page 1
637-8642 Rev. A
Latest Rev.
Service Manual
Links
Generator Belt Replacement
Applies to: AC Power (9-7300)
Required Tools:
• #2 Phillips Screwdriver
• 9/16” Socket
• 10mm Deep Socket
1. Use a #2 phillips screwdriver to remove the screw securing
the right side ywheel cap to the bike, then remove the
cap.
2. Use a #2 phillips screwdriver to remove the screws securing
the left generator cover to the bike
3. With the left generator cover removed, use a screwdriver to
remove the screw hidden by the generator board, angled
as shown.

Technical Procedure
Page 2
637-8642 Rev. A
4. Use a #2 phillips screwdriver to remove the screws securing
the outer chain guard to the bike
5. Remove the outer chain guard.
TECH TIP: Slowly rotate the user right side crank arm toward
the rear of the bike to help with removal of the outer chain
guard.
6. Use a 9/16” socket to remove the axle nuts on both sides of
the ywheel.

Technical Procedure
Page 3
637-8642 Rev. A
7. Remove the tension bolt covers from the front of the bike
8. Using a 10mm deep socket, remove the left and right-side
tension screws from the front forks of the bike.
TECH TIP: If an accessory (such as the Body Bar Holster) is lim-
iting access to the tensioning nuts, use a 6mm allen key with a
10mm deep socket on the end of it to work within the clearance
available.
9. Carefully move the ywheel toward the rear of the bike and
down to drop the ywheel free from the frame.
10. Once the ywheel is free from the bike, install the new gen-
erator belt/band onto the left side ywheel pulley.
11. Reinstall the ywheel

Technical Procedure
Page 4
637-8642 Rev. A
12. Loop the free end of the belt/band over the generator
pulley.
TECH TIP: If the generator band slips o of the ywheel pulley,
remove the nger guards with a #2 phillips screwdriver - it
makes placing the belt/band into the pulley groove much
easier.
13. After replacing the belt/band the carbon blue belt (main
drive belt) will need to be tensioned.
14. Use a 10mm deep socket to tension/loosen the left and
right tension nuts by turning clockwise to tighten and
counter-clockwise to loosen. Be sure to adjust the bolts
evenly so that the ywheel is not angled between the forks.
Using a Hz-detecting app, pluck the belt and measure the
Hz. A properly tensioned belt should measure at ~100
Hz.
TECH TIP: If an accessory (such as the Body Bar Holster) is lim-
iting access to the tensioning nuts, use a 6mm allen key with a
10mm deep socket on the end of it to work within the clearance
available.
15. Lower the brake down and ensure that none of the brake
magnets are touching the ywheel.
16. Once the belt has been tensioned so that the correct Hz is
measured and the ywheel has been checked for align-
ment then tighten the axle bolts that were loosened in Step
4.
NOTE: Part of the frame has been moved for clarity
Brake Magnets
Flywheel