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Important Safety Instructions - Before servicing or using this equipment, obey the following warnings:

This icon means a potentially hazardous situation which, if not avoided, could result in death or serious injury. Read and understand all Warnings on this machine.

004-4738-121511.A

Service manual

• Read and understand the Service Manual before working on the machine. Failure to obey the instructions and safety warnings could cause injury to the service technician or by

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standers. • Keep bystanders and children away from the product being serviced at all times. • Make sure that the repair is done in an appropriate work space away from foot traffic 

and exposure to bystanders. • 

!

 Disconnect all power and allow to sit for 5 minutes before you service this machine. • Some components of the equipment can be 

heavy or awkward. Enlist the service of a second person when you do maintenance steps involving these components. Do not try to do heavy or awkward steps on your own. • Use 

only replacement parts and hardware that are supplied or approved by Nautilus. Failure to use Nautilus-approved replacement parts can adversely affect the safety and functionality 

of the equipment creating a risk to users. • Be sure that all warning stickers and instructional placards applied to the product stay present and in good condition when doing main

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tenance or replacing components. If necessary request replacement warning stickers or placards from Nautilus

®

 customer service. • Do not try to change the design or functionality 

of the machine being serviced as this can adversely effect user safety. • Do not use the machine until all shrouds, instructions, warning labels and correct functionality have been 

verified and tested for correct performance.

Nautilus, Inc., (800) NAUTILUS / (800) 605-3369, www.NautilusInc.com - Customer Service: North America (800) 605-3369, tcinquiry

@nautilus.com

 | outside U.S. +01-360-859-5180, technics-APLA@nautilus.com | © 2011 Nautilus, Inc., 

All rights reserved. ™ and ® indicate a trademark or registered trademark. Nautilus, Inc. (www.NautilusInc.com) trademarks include NAUTILUS®, BOWFLEX®, SCHWINN® and UNIVERSAL® and respective logos. Other trademarks are 

the property of their respective owners.

Serial Number

   AAAAAAA 

 

Nautilus

®

 part number (SKU)

   BBB 

 

 

Vendor Code

   PPPPPP   

 

Purchase Order Number

   LL 

 

 

Purchase Order Line Number

   CCCCCC  

 

Unique Identifier

Schwinn

® 

450 Elliptical Fitness Machine

Important Safety Instructions 

 

 

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Specifications 

 

 

 

1

Maintenance 

 

 

 

2

Maintenance Parts 

 

 

 

3

Troubleshooting  

 

 

 

4

Console Setup Mode    

 

 

5

Replacing the Console Assembly  

 

6

Replacing the Static Handlebar Assembly   

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Removing the Upper and Lower Handlebar Arms 

8

Replacing the Pedals and Legs   

 

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300lbs. (136kg).

Keep children away.
Prior to use, read and understand the 
Owners Manual.
Injury or death is possible if Caution is not 
used while using this machine.
The maximum user weight for this 
machine is 300 lbs (136 Kg).
Replace any “Caution” “Warning” or 
“Danger” label that is illegible, damaged, 
or removed.
This machine is for home use only.
 

Maximum User Weight:

  

300 lbs. (136 kg)

Power Requirements:  

  Operational Voltage:

  

Operational Voltage 9VDC

 

Operating Current:

 

1500 mA

Regulatory Approvals:

   AC Power Adapter:

 

 UL listed, CSA certified (or equivalent), 

Rated 120V 60Hz Input, 9VDC, 1500mA 

Output. Class 2 or LPS.

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Replacing the Front Stabilizer   

 

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Replacing the Rail Assembly 

 

 

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Removing the Shrouds 

 

 

13

Replacing the Tensioner Assembly 

 

14

Replacing the Flywheel, Drive Belt and Drive Pulley 

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Replacing the Servo Motor 

 

 

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Adjusting the Servo Motor 

 

 

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Replacing the Brake Assembly   

 

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Replacing the Speed Sensor Assembly 

 

21

Replacing the Power Inlet Assembly 

 

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This product, its packaging, and components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. This Notice is provided in 

accordance with California’s Proposition 65. If you would like additional information, please refer to our Web site at www.nautilus.com/prop65.

Summary of Contents for Schwinn 450

Page 1: ...side U S 01 360 859 5180 technics APLA nautilus com 2011 Nautilus Inc All rights reserved and indicate a trademark or registered trademark Nautilus Inc www NautilusInc com trademarks include NAUTILUS BOWFLEX SCHWINN and UNIVERSAL and respective logos Other trademarks are the property of their respective owners Serial Number AAAAAAA Nautilus part number SKU BBB Vendor Code PPPPPP Purchase Order Num...

Page 2: ...ervice until the repair is made Only manufacturer supplied components can be used to maintain and repair the equipment Daily Before each use examine the exercise machine for loose broken damaged or worn parts Do not use if found in this condition Repair or replace all parts at the first sign of wear or damage After each workout use a damp cloth to wipe your machine and Console free of sweat Note A...

Page 3: ... Leg Left FF Speed Sensor Magnet G Handlebar Arm Upper Right T Pedal Left GG Speed Sensor H Handlebar Arm Adjustment Knob U Pedal Arm Left HH Pulley I Pedal Right V Crank Assembly Left II Drive Belt J Pedal Arm Right W AC Power Connector JJ Fly Wheel K Handlebar Arm Lower Right X Shroud Left KK Brake Assembly L Pedal Plate Y Storage Bin LL Servo Motor M Leg Right Z Front Stabilizer FF A C D B F E ...

Page 4: ...way from sources of interference TV Microwave etc Replace Chest Strap If interference is eliminated and HR does not function replace strap Replace Console If HR still does not function replace Console Console displays E2 error code Check data cable integrity All wires in cable should be intact If any are cut or crimped replace cable Check data cable connections orientation Be sure cable is connect...

Page 5: ...her for 3 seconds while in the Power Up Mode to go into the Console Setup Mode Note Push STOP to go back to the previous screen or the Power Up Mode screen 2 The Console display shows the Units prompt Push START ENTER to start Units option Push the Increase Decrease buttons to change between Miles Lb Imperial English units and Km Kg metric units Note If the units change when there is data in User ...

Page 6: ...pect your machine to ensure that all hardware is tight and components are properly assembled Do not use until the machine has been fully assembled and inspected for correct performance in accordance with the Owner s Manual 6 Initial Setup of the Console During the first power up the Console must be setup for your preferred measurement units the machine type and brightness of the screen a Units of ...

Page 7: ...he Con sole Cable and the Heart Rate Cable Note Do not crimp the cables Do not allow the cables to fall down the Console Mast Use a rubber band or wire tie 3 Using a 4 mm hex wrench and a 10 mm wrench remove the 4 indicated bolts and remove the Static Handlebar Note Do not crimp the Console Cable when removing the Static Handlebar Do not allow the Console Cable to fall into the Console Mast 4 Inst...

Page 8: ...h small Standard Screwdriver 13 mm wrench 1 Using a 6 mm hex wrench remove the 8 indicated bolts from the Upper Handle bar Arms 2 Remove the Upper Handlebar Arms 3 Using a 6 mm hex wrench and a 13 mm wrench remove the 2 indicated bolts from the Lower Handlebar Arms and Pedals 4 Using a small Standard Screwdriver pry up the Caps from the Lower Handlebar Arms 5 Using a 13 mm wrench remove the hardwa...

Page 9: ...d bolts from the Pedal and Lower Handlebar Arm Be aware that the Handlebar Arms will be loose and may pivot when the hardware is removed 3 Remove the Pedal 4 Using a small Standard Screwdriver pry up the Cap from the Crank Arm 5 Using a 13 mm wrench remove the indicated bolt from the Pedal and remove it 6 Repeat steps on opposite side 7 Installation is the reverse procedure 8 Discard the old parts...

Page 10: ...book or box 1 Place a static object like a book or box under the front of the machine but not under the Front Stabilizer The static object should not be compressible 2 Using a 6 mm hex wrench remove the four bolts that attach the Front Stabilizer 3 Installation is the reverse procedure 4 Dispose of the old parts 5 Inspect your machine to ensure that all hardware is tight and components are properl...

Page 11: ... Incline Handle may need to be slightly lifted to disengage the Incline Assembly c Fully lower the Incline Assembly In order to avoid possible serious injury when lowering the Rails be careful to avoid fingers or hands being caught or pinched d Step off the Incline Release Pedal 2 Perform the removal steps of Replacing the Pedals and Legs Procedure 3 Perform the removal steps of Replacing the Uppe...

Page 12: ...htly top heavy 7 Remove the Rail Assembly 8 Installation is the reverse procedure 9 Dispose of the old parts 10 Inspect your machine to ensure that all hardware is tight and components are properly assembled Do not use until the machine has been fully assembled and inspected for correct performance in accordance with the Owner s Manual 6mm ...

Page 13: ...m 5 Using a 9 16 socket and ratchet remove the Lock Nut from the Crank Arm with Plastics 6 Using a Crank Puller thread it into the Crank Arm with Plastics Note Be sure the end of the Bolt of the Crank Puller is flush with the Nut as shown before use 7 Using a wrench turn the inner portion the Bolt of the Crank Puller clockwise The Crank Arm with Plastics will slide off as it is tightened 8 Using a...

Page 14: ...emoving the Shrouds Procedure 4 Measure or mark a piece of scrap paper the lengths of the Tensioner Spring and Bolt 5 Using a 10 mm hex wrench loosen the Spring Insert Item C until the Tension Spring Item D can be released 6 Using a 13 mm wrench remove the Tensioner Assembly Hardware Item A 7 Remove the Tensioner Assembly Item B from the Frame Assembly and the Drive Belt 8 Installation is the reve...

Page 15: ...e released 6 Turn the Drive Pulley Item D clockwise while forcing the Drive Belt to the outside Belt will come off of the Drive Pulley Keep fingers out of any pinch opportunities when turning the Pulleys 7 Using a 17 mm wrench remove the hardware Item B securing the Flywheel from both sides 8 Using a 13 mm wrench remove the hardware Item C from the Crank Spindle Weldment that contains the Drive Pu...

Page 16: ...ocedure 2 Perform the removal steps of Replacing the Upper and Lower Handlebars Procedure 3 Perform the removal steps of Removing the Shrouds Procedure 4 Using a long 6 mm hex wrench remove the hardware from the Console Mast 5 Remove the Console Mast and discon nect the Console Cables Note Do not crimp the cables 6 Insert a piece of cardboard between the Brake Magnet Item C and the Fly Wheel Item ...

Page 17: ...ugh the Brake Plate and the Frame Assembly Note Before fully attaching the Shrouds remove the cardboard from between the Brake Magnet and the Fly Wheel Power up the machine to verify that the Magnet Arm can move freely and that the Brake Magnet and Fly Wheel are not touching 13 Dispose of the old parts 14 Inspect your machine to ensure that all hardware is tight and compo nents are properly assemb...

Page 18: ...the removal steps of Removing the Shrouds Procedure 4 Insert a piece of cardboard between the Brake Magnet Item E and the Flywheel Item D 5 Inspect the Servo Motor Assembly Item A and decide which way to adjust it 6 Using a 10 mm wrench loosen the Snap Nut Item B that will allow the Servo Motor to adjust in the correct direction Count the number of exposed threads to assist with resetting the Serv...

Page 19: ...d Lower Handlebars Procedure 3 Perform the removal steps of Removing the Shrouds Procedure 4 Insert a piece of cardboard between the Brake Magnet Item B and the Flywheel Item F Note Be sure the cardboard covers all of the Brake Magnet 5 Disconnect the Speed Sensor Cables Item A Note Do not crimp the cables 6 Pull the lower Console Cable Item D from the Frame Assembly Note Do not crimp the cables 7...

Page 20: ...ch the Potentiometer Item P 15 Installation is the reverse procedure Be sure the cardboard will completely cover the new Brake Magnet before installation Do not crimp any cables when routing through the Brake Plate Note Before fully attaching the Shrouds remove the cardboard from between the Brake Magnet and the Fly Wheel Power up the machine to verify that the Magnet Arm can move freely and that ...

Page 21: ...removal steps of Replacing the Pedals and Legs Procedure 2 Perform the removal steps of Replacing the Upper and Lower Handlebars Procedure 3 Perform the removal steps of Removing the Shrouds Procedure 4 Disconnect the Speed Sensor Cables Item A Note Do not crimp the cables 5 Using a 2 Phillips screwdriver remove the indicated bolt Item B from the Speed Sensor Assembly Item C Note The Speed Sensor ...

Page 22: ...m socket and ratchet 1 Perform the removal steps of Replacing the Pedals and Legs Procedure 2 Perform the removal steps of Replacing the Upper and Lower Handlebars Procedure 3 Using a 15mm socket remove the indicated Lock Nut Item A from the AC Inlet 4 Perform the removal steps of Removing the Shrouds Procedure 5 Disconnect the Power Inlet Assembly Item B from the wiring harness Note Do not crimp ...

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