004-4702.120117.G
Service Manual
Nautilus, Inc., (800) 605-3369, www.NautilusInc.com - Customer Service: North America (800) 605-3369, 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 Specications 3
1 Moving Your Machine 4
1 Leveling Your Machine 4
1 Maintenance 5
1 Walking Belt and Deck Lubrication 5
1 Walking Belt Adjustment 7
1 Maintenance Parts 8
1 Troubleshooting 10
1 Console Error Codes 12
1 Console Service Mode 14
1 Console Error Code Troubleshooting 18
1 Replacement Procedure Skill Level 21
Part Replacement
2 Replacing the Bezel Electronics Assembly 22
3 Replacing the Console Assembly / Console Shroud 24
4 Replacing the A/C Inlet 26
5 Replacing the Drive Belt 29
6 Replacing the Motor 32
7 Removing the Treadle Assembly 37
8 Replacing the Motor Control Board 40
9 Replacing the Walking Deck 44
10 Replacing the Front Roller 49
11 Replacing the Rear Roller 52
12 Replacing the Walking Belt 57
13 Replacing the Virtual Pivot 63
14 Replacing the Hydraulic Cylinder (shocks) 70
15 Replacing the Lower and Upper I/O Cables 72
16 Replacing Treadle Assembly-Ver1 with Ver2 76
Bowflex
®
TreadClimber
®
TC20
Service Manual
8017487.120117.A
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