Bowflex TC10 User manual

004-4703.120117.E
Service Manual
Nautilus, Inc., [phone], www.NautilusInc.com - Customer Service: North America [phone], outside U.S. www.nautilusinternational.com | © 2011 Nautilus, Inc. | ® indicates trademarks registered in the United
States. These marks may be registered in other nations or otherwise protected by common law. Bowflex, and the B logo are trademarks owned by or licensed to Nautilus, Inc.
Table of Contents
Section Code Section Page Number
1 Important Safety Instructions 2
1 Safety Warning Labels and Serial Number 3
 1  Specications      3
1 Moving Your Machine 4
1 Leveling Your Machine 4
1 Maintenance 5
1 Walking Belt and Deck Lubrication 5
1 Walking Belt Alignment 7
1 Maintenance Parts 8
1 Troubleshooting 10
1 Console Error Codes 11
1 Console Error Code Troubleshooting 17
1 Replacement Procedure Skill Level 20
Part Replacement
2 Replacing the Console 21
3 Replacing the Console / Handlebar Assembly 23
4 Replacing the A/C Inlet 25
5 Replacing the Drive Belt 28
6 Replacing the Motor 31
7 Removing the Treadle Assembly 35
8 Replacing the Motor Control Board 40
9 Replacing the Walking Deck 44
10 Replacing the Front Roller 49
11 Replacing the Walking Belt 52
12 Replacing the Virtual Pivot 58
13 Replacing the Hydraulic Cylinder (shocks) 64
14 Replacing the Lower and Upper I/O Cables 66
Bowflex®TreadClimber® TC10
Service Manual
8017486.120117.A

2
Before servicing or using this equipment, obey the following warnings:
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 bystanders.
To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug the power cord from the
wall outlet and/or the machine and wait 5 minutes before cleaning, maintaining or repairing the machine. Place the power cord in a
secure location.
• 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.
• 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 and will 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 Nautilus customer
service.
• Do not try to change the design or functionality of the machine being serviced as this can adversely affect user safety and will void
the warranty.
• Do not put the machine back in service until all shrouds, instructions, warning labels and correct functionality have been verified
and tested for correct performance.
8006735.120117.B
Service Procedures
Important Safety Instructions
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.
NOTICE: This document provides important safety instructions, adjustments, and general troubleshooting information for the maintenance of the Bowflex®
TreadClimber®TC10.
If you need assistance, please call Bowflex Customer Service at 1-800-605-3369.
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.
Nautilus, Inc., [phone], www.NautilusInc.com - Customer Service: North America [phone], [email protected] | outside U.S. www.nautilusinternational.com | Printed in China | © 2014 Nautilus, Inc. | ® indicates
trademarks registered in the United States. These marks may be registered in other nations or otherwise protected by common law. Bowflex, the B logo, and TreadClimber are trademarks owned by or licensed to Nautilus, Inc.
WD-40®, and Lube-N-Walk®are trademarks of their respective owners.
Important Safety Instructions and General Troubleshooting
Information for the Bowflex®TreadClimber® TC10

3
SAFETY WARNING LABELS AND SERIAL NUMBER
SPECIFICATIONS
-Moving parts can crush and
cut.
-Keep guards in place.
-Lock out power before
servicing.
9.
•
•
* on inside of Treadles
* under Rear Step
* under Rear Step
* beside power inlet
002-2268
Serial Number
Product Specication
Maximum User Weight: 300 lbs (136 kgs)
Power Requirements:
Operational Voltage: 120VAC 60 Hz
Operating Current: 10A max
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.
53”
(134 cm)
51” (129 cm)
30” (77 cm)

4
Moving Your Machine
The TreadClimber®tnessmachineweighsapproximately158lbs(71.8kg)whenfullyassembledand
requires caution when being moved. Use the Transport Hand Bar found under the front of the machine
tomoveit.TogetaccesstotheTransportHandBar,turntheLevelersuntilyouhavesufcientclearance
betweenthemachineandoor.
Your machine can be rolled on the transport wheels to a new location. Lower your machine slowly into
itsnewlocationwithoutinjurytoyourheadorngers.
Do not use the uprights, handlebars, or the Console to lift or move the machine. Injury to
you or damage to the machine can occur.
The machine may be moved by one or more persons depending on their physical abilities
and capacities. Make sure that you and others are all physically t and able to move the
machine safely.
Place the machine on a clean, hard, level surface, free from unwanted material or other objects that may hamper your ability to move
freely. A rubber mat should be used below the machine to prevent the release of static electricity and protect your ooring.
For safe storage of the machine and to prevent unsupervised operation of the machine always remove the Safety Key and
disconnect the power cord from the wall outlet and the AC input. Place the power cord in a secure location.
Leveling Your Machine
Levelers are found on the front of the TreadClimber®machine. Make sure the TreadClimber®machine is level and stable before you exercise. To
adjust:
1. Loosen the upper locking nut.
2. Turn the leveler to adjust the height.
3. Tighten the upper locking nut to lock the leveler.
Do not adjust the levelers to such a height that they detach
or unscrew from the machine. Injury to you or damage to the
machine can occur.
13 mm

5
MAINTENANCE
Read all maintenance instructions fully before you start any repair work. In some conditions, an assistant is required to do the necessary tasks.
Equipment must be regularly examined for damage and repairs. The owner is responsible to make sure that regular maintenance is
done. Worn or damaged components must be repaired or replaced immediately. Only manufacturer supplied components can be
used to maintain and repair the equipment.
To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug the power cord from
the wall outlet and/or the machine and wait 5 minutes before cleaning, maintaining or repairing the machine. Place the power cord in a
secure location.
Daily: Before each use, inspect for loose, broken, damaged, or worn parts. Do not use the machine if any of these conditions exist. Use a
dry cloth to wipe off any perspiration after each use.
Weekly: Check for smooth roller operation. Clean the machine to remove dust, dirt, or grime. Clean the top of the belt with a slightly damp,
soapy cloth and wipe carefully and thoroughly with a dry cloth. Do not let any liquid get below the belts or into the Base Frame.
Monthly: Make sure all bolts and screws are tight. Tighten if necessary.
NOTICE: Do not clean with a petroleum based solvent or an automotive cleaner. Be sure to keep the Console free of moisture.
Walking Belt and Deck Lubrication
The TreadClimber®machine is equipped with a low maintenance deck and belt system. Belt friction can affect the function and life of the machine.
Your TreadClimber® tnessmachinecamewithastartersupplyoflubricationforthebelts.
Lubrication Schedule
User Level Total Workout Hours per Week When to Lubricate
Light less than 3 hours every 3 months
Moderate 3 to 5 hours every 2 months
Heavy 5 or more hours every month
We recommend that you use one of the following:
• Lube-N-Walk®Treadmill Lubrication Kit (available from www.bowflex.com or your local specialty fitness dealer)
• 100% pure silicone, available at most hardware and auto parts stores.
Asyouuseyourtnessmachine,theConsolewillshow“LUbE”atsettimes.Thisisonlyareminderandshould be added to your inspection
schedule. Only apply lubricant as necessary. Push the START button to accept the reminder.
For the best results lubricate the Treadles periodically with a silicone lubricant, using the following instructions:
1. Unplug the machine fully from the wall outlet, and remove the power cord from the machine. Place the power cord in a secure location.
2. Carefully lift each belt and apply silicone lubricant in the center of the Treadle deck along the entire reachable length of the deck. Apply 0.5 to 1.5
oz. of the lubricant on the deck underneath each belt.

6
NOTICE: Always use a 100% pure silicone lubricant. Do not use a degreaser like WD-40®or a petroleum based product as this could
seriously impact performance.
Note:TheWalkingBeltsmayneedtobeloosenedtoallowforaccessduringlubrication.Consultthe“AdjustingtheWalkingBelts”procedure
if necessary.
3. Connect the power cord back into the machine and then into the wall outlet.
4. Stay to one side of your machine.
5. Switch on your machine and start the belts at the slowest speed. Let the belts operate for approximately 15 seconds.
6. Switch off your machine.
7. Take care to clean up any excess lubricant from the Treadles. We also recommend a periodic inspection of the Treadle surfaces below the belts.
If the decks appear worn, contact a TreadClimber Representative (refer to the Contacts section of this manual).
To decrease the possibility of slipping, be sure the Treadle area is free from grease or oil. Clean off any excess oil from the machine
surfaces.

7
Walking Belt
Adjustment Bolts
Walking Belt Alignment
The walking belts need to be adjusted if they are out of center enough to cause a rubbing or scraping sound. Adjustments can be made at the Front
Roller of each Treadle.
Adjusting the Walking Belts – While operating the machine, notice where the belts run on each Treadle. The Walking Belt Adjustment Bolts are on
the front end of each Roller. If the belt is tracking too far to the right, use a properly sized Hex Key to turn the right adjustment bolt clockwise on that
belt in full turn increments. If the belt tracks too far to the left, do the same thing on the left adjustment bolt.
Note: Do not turn the bolts counterclockwise when you adjust the belt alignment.
Belt Tension Adjustment – Check the belt tension only when the machine is unplugged. From the belt’s midpoint, a correctly tensioned belt should
only have an inch of give. To check, pull the belt upward at its midpoint and measure the distance to the deck. If the distance is more than an inch,
the belt is loose. To tighten, turn both Walking Belt Adjustment Bolts clockwise one-half a turn and check tension again. Repeat this step if necessary.
Note: Bolts are turned counterclockwise equally to decrease belt tension.

8
Maintenance Parts
Cylinders
Power Cord
Safety Key
Rear Cover
Treadle Assembly
Right Upright
Left Upright
Rear Step
Console / Handlebar Assembly
Base Upright

9
Maintenance Parts (Treadle Assembly)
Walking Belt
Adjustment
Screw
Side Foot Support
Platform
Front Roller
Lower Walking
Belt Guide
Treadle Stop
Drive Belt
Drive Motor
Walking Belt
Guide
IGUS Bushing
A/C Inlet
Rear Roller
Motor Control
Board

10
TROUBLESHOOTING
Condition/Problem Things to Check Solution
Unit will not power up/turn on/start Outlet Make sure outlet is functioning correctly. Verify this by plugging another
device (ex: lamp) into the outlet. If outlet is connected to a light switch,
checktomakesureitison.Ifoutletisnotfunctioningndaworking
outlet.
Power cord not plugged in MakesurethepowercordisrmlysecuredtoA/Cinletontheunitand
rmlyinsertedintoanon-GFIwallsocket.
Power switch turned off Makesurethepowerswitchattherearoftheunitisinthe“ON”posi-
tion. Switch will light up red to indicate power is present.
Safety key not plugged in Plug Safety Key into Console (See Safety Key (Emergency Stop Procedures)
within Features section).
Speed displayed is not accurate Display set to wrong unit of mea-
sure. (English/Metric)
Change display units.
Walking belt misalignment Rear belt guides Belts should ride on top of triangular black belt guides at rear of
treadles.
Tracking adjustment Belts are not required to be perfectly centered and are typically farther
out in the rear than they are in the front. This may vary depending on
user’s stride. If belt is tracking to one side far enough to cause rubbing
ofbelt,consultthe“AdjustingtheWalkingBelts”procedure.
Speed dependent grinding or
scraping noise
Belt alignment Check walking belt alignment. Belt contact with metal guides under
Treadle can make a loud grinding sound. If belts are misaligned, adjust
walking belt.
Rollers or motor Contact Customer Care for further assistance.
Hesitation or belt slipping when
walking on unit
Walking belt tension Adjustwalkingbelttensionbyfollowingthe“AdjustingtheWalkingBelt”
procedure.
Knocking noises when unit is
operating
Igus bushing If knocking sound seems to be coming directly from the rear roller,
checkIgus(yellow“hat”shaped)bushingsandreplaceifcracked.
Hydraulic cylinder bolts Check and tighten both upper and lower bolts that connect the hydraulic
cylinders to the unit.
Belts stop turning while in use Safety key Plug Safety Key into Console (See Safety Key (Emergency Stop Procedures)
in Features section).
Motor overload Unit may be overloaded and drawing too much current, causing unit
to shut power down to protect motor. Consult belt lubrication schedule
to determine if belts need lubrication, check walking belt tension, and
restart unit.
Outlet Outlet may not have enough power available for the machine due to
other devices on same circuit. Remove any devices from power circuit
and restart machine.
Consoledisplays“C”,“S”,or“H”
with a number
Console Cycle power off and on to clear the error. If issue recurs be sure to note
the display code and contact Customer Service for further assistance.
Consoledisplays“LUbE”code Belt lubrication Consult lubrication schedule and apply if necessary. Push START but-
ton.