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50

Replace the Drive Belt and Flywheel Assembly 

on the Nautilus

®

 U624/U626 and R624/R626 (Model Year 2014) Bikes

Skill Level: II

8008342.040115.A

Replacement Procedure

Nautilus, Inc., , www.NautilusInc.com - Customer Service: [email protected] | © 2014 Nautilus, Inc. | ® indicates trademarks registered in the United States. These marks may be registered in other nations or 

otherwise protected by common law. | 

ORIGINAL DOCUMENT - ENGLISH VERSION ONLY

NOTICE:  

This document provides instructions for the replacement of the Drive Belt on the Nautilus

®

 U624 and U626 Upright Bikes, and  

R624 and R626 Recumbent Bikes. 

If you need assistance, please contact your local distributor. To find your local distributor, go to: www.nautilusinternational.com

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.

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.

WA R N I N G

AT T E N T I O N

D A N G E R

IMMEDIATE ACTION REQUIRED

C A U T I O N

 

To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug the power cord from the wall outlet and 

wait 5 minutes before cleaning, maintaining or repairing this machine. Place the power cord in a secure location.

• Read and understand the Part Replacement Procedure before working on the machine. Failure to obey the instructions and safety warnings 

could cause injury to the service technician or bystanders. 

• 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. 

• 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. 

• If replacement parts are necessary, use only genuine Nautilus replacement parts and hardware. Failure to use genuine replacement parts 

can cause a risk to users, keep the machine from operating correctly and void the warranty.

• Be sure that all warning stickers and instructional placards applied to the product stay present and in good condition when doing 

maintenance or replacing components. If necessary request replacement warning stickers or placards from from your local distributor. 

• Do not try to change the design or functionality of the machine being serviced as this can adversely affect user safety. 

• Do not use the machine until all shrouds, instructions, warning labels and correct functionality have been verified and tested for correct 

performance.

• This product contains magnets. Magnetic fields can interfere with the normal use of certain medical devices at a close range. Users may 

come into proximity of the magnets in the assembly, maintenance, and/or use of the product. Given the obvious importance of these devices, 

such as a pacemaker, it is important that you consult with your medical provider in connection with the use of this equipment. Please consult 

the “Safety Warning Labels and Serial Number” section in the Owner’s Manual to determine the location of the magnets on this product.

Tools Required (not included)

#2 Phillips screwdriver 

 

 

 

 

15mm open end wrench

Small flathead screwdriver   

 

 

 

15mm socket and wrench

Pedal wrench (U624/R624)   

   

Safety goggles or other eye protection

or crank puller (U626/R626)

Needlenose 

pliers 

    

Содержание U624

Страница 1: ...rms U626 23 Transport Wheels Front Endcaps and Footpads 27 Shrouds 29 Handlebar Assembly 34 Console Mast 37 Data Cable in the Mast 41 Brake Assembly 44 Servo Motor 46 Drive Belt and Flywheel Assembly...

Страница 2: ...s from your local distributor Do not try to change the design or functionality of the machine being serviced as this can adversely affect user safety Do not put the machine back in service until all s...

Страница 3: ...age Class H Consumer use only Maximum User Weight 136kg 300lb Equipment Type Fitness Made in China 8004288_A Manufacture Date Code 58mm 30mm Patent www nautilusinc com IP Nautilus Inc YYWW 18225 NE Ri...

Страница 4: ...nutes before cleaning maintaining or repairing this machine Place the power cord in a secure location When disposing of old parts obey the applicable local and provincial requirements Daily Before eac...

Страница 5: ...he bike downward Push the bike to the desired location NOTICE Be careful when you move the bike Abrupt motions can affect the computer operation Leveling Your Bike Levelers are found on each side of t...

Страница 6: ...conduct These are available on the web or at medical or some larger fitness stores Handlebar If tests reveal no other issues Handlebars should be replaced Unit operates but Telemetric HR not displayed...

Страница 7: ...eed sensor should be aligned with magnet and connected to data cable Realign sensor if necessary Replace if there is any damage to the sensor or the connecting wire Unit rocks does not sit level Check...

Страница 8: ...setting Push the Increase Decrease buttons to change between ON and OFF 11 Push OK to set 12 The Console display shows the TOTAL RUN HOURS for the machine To go to the next Console Setup Mode prompt p...

Страница 9: ...t individual segments one at a time until all segments are illuminated Press any key to exit i RESET CONSOLE Resets the data from user inputs The Console setup user records and workout records will be...

Страница 10: ...ors X Brake Assembly C Pedals N Seat Y RPM Sensor D Crank Arms O Seat Post w Slider Z Speed Sensor Magnet E Left Shroud P Adjustment Knob AA Servo Motor F Power Inlet Q AC Adapter BB Drive Belt G Righ...

Страница 11: ...RPM Sensor D Crank Arms O Seat Post w Slider Z Speed Sensor Magnet E Left Shroud P Adjustment Knob AA Servo Motor F Power Inlet Q AC Adapter BB Drive Belt G Right Shroud R Water Bottle Holder CC Driv...

Страница 12: ...reduce the risk of electrical shock or unsupervised usage of the equipment always unplug the power cord from the wall outlet and wait 5 minutes before cleaning maintaining or repairing this machine Pl...

Страница 13: ...rs 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 Some components of th...

Страница 14: ...4 Move the Flywheel in the Main Frame bracket as necessary to adjust the tension Hold it in position and tighten the hardware Note This step may require two people To tighten the Flywheel hardware us...

Страница 15: ...ly with pedal wrench Note The Left Pedal is reverse threaded Orientation is based from a seated position on the bike The Left Pedal has an L the Right Pedal an R 16 Final Inspection Inspect your machi...

Страница 16: ...steps involving these components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts and hardware supplied by Nautilus Failure to...

Страница 17: ...e Mast Lean the Top Shroud against the Seat Post mount to keep it clear of the pulley assembly Note It may be necessary to remove the Water Bottle Holder 4 Insert 2 5 x 10 cardboard between the Brake...

Страница 18: ...o check the resistance adjustment Machine is on Current is active There is risk of electrical shock Note Before fully attaching the Shrouds remove the cardboard from between the Brake Magnet A and the...

Страница 19: ...o the service technician or bystanders 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 traf...

Страница 20: ...anual Initial Setup During the first power up the Console should be set up with the date time your preferred measurement units and machine type 1 Date Push the Increase Decrease buttons to adjust the...

Страница 21: ...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 If replacement parts are necessar...

Страница 22: ...tighten to prevent cross threading Then tighten fully with pedal wrench Note The Left Pedal is reverse threaded Be sure to attach Pedals on the correct side of the Bike Orientation is based from a se...

Страница 23: ...you do maintenance steps involving these components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts and hardware supplied by...

Страница 24: ...eft Pedal is reverse threaded Orientation is based from a seated position on the bike The Left Pedal has an L the Right Pedal an R 2 Using a flathead screwdriver remove the threaded Cap A from the Cra...

Страница 25: ...eads on the outer portion CP2 of the Crank Puller should show Note Be sure the end of the Bolt CP1 of the Crank Puller is flush with the Nut CP2 as shown before use 5 Using a wrench turn the inner por...

Страница 26: ...ten fully with pedal wrench Note The Left Pedal is reverse threaded Be sure to attach Pedals on the correct side of the Bike Orientation is based from a seated position on the bike The Left Pedal has...

Страница 27: ...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 If replacement par...

Страница 28: ...bilizer D Set the Endcap and screw safely aside 4 Using the 6mm hex key and 13mm wrench loosen and remove the hardware C1 from the old Transport Wheel assembly C Remove the old Transport Wheel from th...

Страница 29: ...nce steps involving these components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts and hardware supplied by Nautilus Failure...

Страница 30: ...d show Note Be sure the end of the Bolt CP1 of the Crank Puller is flush with the Nut CP2 as shown before use 5 Using a wrench turn the inner portion CP3 of the Crank Puller clockwise The Crank Arm C...

Страница 31: ...arefully remove the Crank Covers and set them safely aside 8 Slide the Mast Gasket up the Mast 9 Remove the hardware indicated from the Mast Gently pull the Mast out and disconnect the cables Set the...

Страница 32: ...eft Shroud Remove the bottom screws first and then the top screws Slowly remove the Left Shroud Note Find the Power Inlet E in the Left Shroud Disconnect the Power Inlet cable E1 from the wiring harne...

Страница 33: ...n Assembly U624 bike To reinstall the Pedals carefully align the threads and hand tighten to prevent cross threading Then tighten fully with pedal wrench Note The Left Pedal is reverse threaded Orient...

Страница 34: ...d person when you do maintenance steps involving these components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts and hardware...

Страница 35: ...safely aside for reassembly 4 Tie the length of string to the end of the Heart Rate Cable at the top of the Mast Grasp the section of HR Cable under the Handlebar Bracket and carefully pull the cable...

Страница 36: ...e end of the HR cable Carefully pull the cable through the slot under the Handlebar Bracket to the top of the mast Fully tighten the T handle to keep the Handlebar in position Push the cover into posi...

Страница 37: ...on when you do maintenance steps involving these components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts and hardware suppl...

Страница 38: ...require two people 3 Remove the Handlebar Bracket Cover and set it safely aside for reassembly 4 Grasp the section of HR Cable under the Handlebar Bracket and carefully pull the cable down through th...

Страница 39: ...ut and disconnect the cables Set the hardware Mast Gasket and Top Shroud safely aside for reassembly Discard the old Mast NOTICE Do not crimp the cables This step may require two people Note Do not le...

Страница 40: ...dle to keep the Handlebar in position Push the cover into position on the Handlebar Bracket NOTICE Do not crimp the cables Do not let the cables fall down in the Mast 12 Connect the cables to the back...

Страница 41: ...of a second person when you do maintenance steps involving these components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts an...

Страница 42: ...et Set it safely aside for reassembly 4 Remove the hardware indicated from the Mast Gently pull the Mast out and disconnect the cables Set the hardware safely aside for reassembly NOTICE Do not crimp...

Страница 43: ...Data Cable and connect the cable to the Data Cable from the Main Frame NOTICE Do not crimp the cables This step may require two people 8 Put the Mast back in position in the Main Frame and reinstall...

Страница 44: ...involving these components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts and hardware supplied by Nautilus Failure to use g...

Страница 45: ...efore fully attaching the Shrouds remove the cardboard from between the Brake Magnet A and the Flywheel B Power up the machine to verify that the Magnet Arm can move freely and that the Brake Magnet a...

Страница 46: ...e components Do not try to do heavy or awkward steps on your own If replacement parts are necessary use only genuine replacement parts and hardware supplied by Nautilus Failure to use genuine replace...

Страница 47: ...e resistance to the highest level Disconnect all power and allow to sit for 5 minutes 2 Carefully remove the Shrouds Refer to the Replace the Shrouds procedure in this manual 3 Measure and mark the po...

Страница 48: ...om the Main Frame Pull back and release the Magnet Arm K enough to disengage it from the Motor Pulley Shaft L 9 Loosen and remove the two hex head bolts M from the Servo Motor C NOTICE Hold the Servo...

Страница 49: ...sing the needlenose pliers Note Before fully attaching the Shrouds remove the cardboard from between the Brake Magnet A and the Flywheel B Power up the machine to verify that the Magnet Arm can move f...

Страница 50: ...rom 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 Some components of the equipment can be hea...

Страница 51: ...he Shrouds Refer to the Replace the Shrouds procedure in this manual 2 Slowly turn the Drive Pulley A backward and carefully ease the Drive Belt B off the Drive Pulley to the outside Be sure to keep f...

Страница 52: ...each end of the Flywheel axle 9 Put the Drive Belt B onto the Drive Pulley A Make sure the Drive Belt is aligned on the Flywheel pulley C1 Belt Tensioner E and Drive Pulley 10 Before you fully tighte...

Страница 53: ...ildren 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 Some components of the equipme...

Страница 54: ...w Belt Tensioner assembly Adjust the Belt Tensioner position to the angle of the previous position recorded in Step 2 NOTICE Do not overtighten the hardware E The Belt Tensioner must be able to pivot...

Страница 55: ...ildren 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 Some components of the equipme...

Страница 56: ...g C1 from the hook D on the frame 4 Loosen and remove the Locknut E Bumper F and Bracket G from the Pulley Shaft Assembly H To reduce the risk of electrical shock or unsupervised usage of the equipmen...

Страница 57: ...the Flywheel pulley N Belt Tensioner C and Drive Pulley Be sure that the upper portion of the Drive Belt B is under the bearings on the Belt Tensioner C 8 Using the needlenose pliers reattach the Bel...

Страница 58: ...ystanders 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 Some component...

Страница 59: ...dure NOTICE Do not crimp any cables Be sure the routing for the new RPM Sensor cable B and other wiring is correct to prevent interference from moving parts Note Before fully attaching the Shrouds ver...

Страница 60: ...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 Some components of the...

Страница 61: ...place the Shrouds procedure in this manual 2 Carefully disconnect the Power Inlet cable A in the Shroud from the wiring harness B on the motor To reduce the risk of electrical shock or unsupervised us...

Страница 62: ...et assembly 5 Installation is the reverse procedure NOTICE Do not crimp any cables Be sure the Power Inlet plug is seated evenly in the hole 6 Final Inspection Inspect your machine to ensure that all...

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