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Nautilus Bowflex C6 - User Manual

Nautilus Bowflex C6
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1
8024500.121521.G
Service Manual
Table of Contents
Nautilus, Inc., www.NautilusInc.com, 5415 Centerpoint Parkway, Groveport, OH 43125 U.S.A. - Customer Service: North America (800) 605-3369, csnls@nautilus.com | outside U.S.
www.nautilusinternational.com | © 2019 Nautilus, Inc. | Nautilus, the Nautilus logo, Bowex and Schwinn are trademarks owned by or licensed to Nautilus,Inc., which are registered or
otherwise protected by common law in the United States and other countries. | ORIGINAL DOCUMENT - ENGLISH VERSION ONLY
8024502.121521.G
Schwinn
™
IC4 / IC8 / 800IC and Bowex
™
C6 Bike
Service Manual
™
Section Code Section Page Number
1 Important Safety Instructions 2
1 Safety Warning Labels and Serial Number 3
1 FCC Compliance 3
1 Specications 4
1 Maintenance 5
1 Moving/Storing the Machine 6
1 Leveling the Machine 6
1 Heart Rate Armband 7
1 Adjustments 8
1 Locking the Flywheel for Storage 9
1 Troubleshooting 10
1 Maintenance Parts Exploded View 12
1 Replacement Procedure Skill Level 13
Mechanical Procedures
2 Adjust the Belt Tension 14
3 Calibrate the Magnetic Resistance Sensor 18
4 Install the Handlebar Bushing Kit 21
Part Replacement
5 Replace the Emergency Brake Pad 25
6 Replace the Brake / Resistance Knob Assembly 28
7 Replace the Crank Arm 32
8 Replace the Drive Belt 36
9 Replace the Drive Belt Cover 43
10 Replace the Drive Pulley 46
11 Replace the Fender 51
12 Replace the Flywheel Assembly 53
13 Replace the Flywheel Tensioners 61
14 Replace the Handlebar and Seat Post Bushing 65
15 Replace the Pedals 71
16 Replace the Power Inlet 74
17 Replace the Resistance Sensor and Sensor Magnet 79
18 Replace the Speed Sensor 83
19 Replace the Wiring Harness 91

Table of Contents

Other manuals for Nautilus Bowflex C6

Preview: Replacement Procedure
Replacement Procedure3 pages

Questions and Answers

  • M
    Michelle ThompsonAug 17, 2025
    How to fix no display on Nautilus Exercise Bike?
    • R
      Randall VazquezAug 17, 2025
      First, ensure the exercise bike is plugged into a functioning wall outlet. Check that the connection is secure and undamaged, replacing the adapter or connection if necessary. Inspect the cable for any crimped or cut wires, and replace it if damaged. Confirm the cable is securely connected and oriented correctly, with the small latch on the connector lined up and snapped into place. Examine the console display for cracks or damage, and replace the console if needed. If the console shows only a partial display and all connections are fine, replace the console. If these steps don't solve the issue, further assistance may be needed.
  • M
    Michael NelsonAug 20, 2025
    Why does my Nautilus Exercise Bike console shut off during use?
    • D
      Dr. Sonya EvansAug 20, 2025
      To resolve the issue of the console shutting off during use, first ensure the Nautilus exercise bike is plugged into a functioning wall outlet and that the connection is secure and undamaged, replacing the adapter if necessary. Check the cable for any damage and replace if needed, ensuring it’s correctly connected with the latch secured. Try unplugging the unit for 3 minutes and then reconnecting it. Also, verify that the magnet is in place on the pulley and that the speed sensor is aligned with the magnet and properly connected; realign or replace the sensor if damaged.
  • J
    Jordan BrownAug 22, 2025
    Why is the speed displayed not accurate on my Nautilus Bowflex C6?
    • J
      Jesus ColonAug 22, 2025
      To correct inaccurate speed readings on your Nautilus Exercise Bike, ensure the speed sensor magnet is properly positioned on the flywheel.
  • N
    Nicole SerranoAug 26, 2025
    What to do if my Nautilus Bowflex C6 speed displayed is always “0”/stuck in Pause mode?
    • J
      jasminewyattAug 26, 2025
      If your Nautilus Exercise Bike displays a constant '0' speed or remains stuck in pause mode, ensure the data cable is securely connected to both the console and the main frame assembly. Also, verify that the RPM sensor magnet and the RPM sensor are correctly in place.
  • J
    Jennifer SheppardAug 28, 2025
    How to fix no speed/RPM reading on Nautilus Bowflex C6?
    • D
      Dylan MorganAug 28, 2025
      To troubleshoot a missing speed or RPM reading on your Nautilus Exercise Bike, check that all wires in the cable are intact, replacing the cable if any are cut or crimped. Ensure the cable is securely connected and correctly oriented, with the latch properly aligned. Verify the speed sensor magnet is in place on the flywheel. Also, confirm the speed sensor assembly is aligned with the magnet and connected to the data cable; realign the sensor if necessary, and replace it if damaged.
  • M
    Matthew SteinAug 30, 2025
    Why is Bluetooth Heart Rate (HR) not displayed on my Nautilus Exercise Bike?
    • W
      William SalazarAug 30, 2025
      To resolve issues with the Bluetooth Heart Rate (HR) not displaying on your Nautilus Exercise Bike, ensure the device is directly against your skin and the contact area is wet. If the device uses replaceable batteries, try installing new ones. Move the unit away from potential sources of interference like TVs or microwaves. If the problem persists after these steps, the device or console may need replacement.
  • M
    Matthew HunterSep 2, 2025
    What to do if my Nautilus Bowflex C6 Exercise Bike Bluetooth® HR displayed incorrectly?
    • A
      annette04Sep 2, 2025
      If your Nautilus Exercise Bike displays an incorrect Bluetooth® HR reading, the console might still be connected to a previous user. Press the Connect Bluetooth® button to disconnect and connect to your heart rate sensing device.
  • K
    kenneth51Sep 5, 2025
    How to stop my Nautilus Exercise Bike from rocking?
    • J
      Jodi ThomasSep 5, 2025
      To address rocking or unevenness in your Nautilus Exercise Bike, adjust the levelers to stabilize the machine. If the surface is extremely uneven, consider moving the bike to a more level area.
  • M
    martinbenjaminSep 8, 2025
    Why are the pedals loose on my Nautilus Exercise Bike?
    • M
      Michael DavisSep 8, 2025
      To address loose pedals, difficulty pedaling, or skipping/slipping pedals on your Nautilus Exercise Bike, ensure the pedal is tightly secured to the crank arm, making sure the connection isn't cross-threaded. Also, confirm that the crank arm is securely tightened to the axle.
  • N
    Nicole LevineSep 12, 2025
    Why is there a clicking sound when pedaling my Nautilus Bowflex C6?
    • M
      Monica GonzalesSep 12, 2025
      If you hear a clicking sound when pedaling your Nautilus Exercise Bike, remove the pedals and check the threads for any debris. Reinstall the pedals after cleaning the threads.

Summary

Replace the Crank Arm

Adjust the Belt Tension

Step-by-step guide to properly adjust the drive belt tension for optimal performance.

Calibrate Magnetic Resistance Sensor

Procedure to recalibrate the resistance sensor for accurate level readings.

Replace Emergency Brake Pad

Guide to replacing the worn emergency brake pad on the exercise bike.

Replace Drive Belt

Instructions for replacing the main drive belt of the exercise machine.

Replace Flywheel Assembly

Guide for replacing the heavy flywheel assembly for proper bike function.

Replace Pedals

Procedure for safely removing and installing new pedals onto the crank arms.

Replace Speed Sensor

Instructions for replacing the sensor that measures the bike's speed.

Replace Wiring Harness

Guide for replacing the internal wiring that connects various components.

Nautilus Bowflex C6 Specifications

General IconGeneral
Resistance Levels100
Weight Capacity330 lbs
Drive SystemBelt drive
PedalsDual-sided pedals with toe cages
ConnectivityBluetooth
Weight112 lbs
Resistance TypeMagnetic
Compatible AppsPeloton, Zwift
Seat AdjustmentVertical and horizontal adjustment
Handlebar AdjustmentVertical

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