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C960 Series Commercial Treadmill
C960, C962, C964 Treadmill
Warning: This service manual is for use by Precor trained service providers only.
If you are not a Precor Trained Servicer, you must not attempt to service any Precor Product;
Call your dealer for service.
This document contains information required to perform the majority of troubleshooting, and
replacement procedures required to repair and maintain this product.
This document contains general product information, software diagnostic procedures (when
available), preventative maintenance procedures, inspection and adjustment procedures,
troubleshooting procedures, replacement procedures and electrical block and wiring diagrams.
To move directly to a procedure, click the appropriate procedure in the bookmark section to the
left of this page. You may "drag" the separator bar between this page and the bookmark section
to change the size of the page being viewed.
© 2003 Precor Incorporated
Unauthorized Reproduction and Distribution Prohibited By Law
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Table of Contents
Troubleshooting
Related Manuals for Precor C962
Summarization of Contents
C960, C962, C964 Treadmill
Service Manual Warning
Manual is for trained service providers only. Do not attempt service if untrained.
Section One - Things You Should Know
About This Appendix
Provides an overview and structure of the manual's appendix content.
Section Two: Software Features
Details diagnostic and setup features of the treadmill software.
Section Three: Checking Treadmill Operation
Quick method for checking treadmill function post-maintenance.
Section Five: Troubleshooting Procedures
Guides for isolating and resolving specific component problems.
Section Six: Replacement Procedures
Step-by-step instructions for replacing treadmill components.
Procedure 4.3 - Inspecting and Adjusting Safety Switch Alignment
Inspecting the Alignment of the Safety Switch
Procedure to check if the safety switch trips correctly during normal operation.
Adjusting the Alignment of the Safety Switch
Steps to properly align the safety switch for correct operation.
Procedure 5.5 - Troubleshooting Hand Held Heart Rate
Normal Hand Held Reading - No Chest Strap Reading
Troubleshooting steps when hand-held heart rate is normal but chest strap is not.
No Hand Held Reading - No Chest Strap Reading
Troubleshooting when neither hand-held nor chest strap readings are received.
Constant or Intermittent Readings When Neither Hand Held or Chest Strap is in Use
Diagnosing phantom readings when no heart rate system is active.
Procedure 5.6 - Troubleshooting the External A.C. Power Source
120 Vac Systems
Checks and corrections for 120V AC power circuits for proper treadmill operation.
240 Vac Systems
Checks and corrections for 240V AC power circuits for proper treadmill operation.
Procedure 6.1 - Replacing the Lift Motor, Rotation Sensor or Magnet Hub
Removing the Lift Motor
Step-by-step guide for removing the lift motor assembly from the treadmill.
Removing and Replacing the Rotation Sensor Bracket
Instructions for removing and reinstalling the rotation sensor bracket.
Replacing the Lift Motor
Steps to install a new lift motor into the treadmill assembly.
Procedure 6.2 - Replacing the Limit Switches, Actuator Shaft or Switch Bracket
Removing the Upper Limit Switch
Detailed steps for removing the upper limit switch from its mounting.
Removing the Down Limit Switch
Instructions for carefully removing the down limit switch.
Removing the Zero Sense Switch
Steps for disconnecting and removing the zero sense switch.
Procedure 6.3 - Replacing the Lift Motor Capacitor
Removing the Lift Motor Capacitor
Steps to safely remove the lift motor capacitor.
Replacing the Lift Motor Capacitor
Procedure for installing a new lift motor capacitor.
Procedure 6.4 - Replacing the Lift Platform
Removing the Lift Platform
Detailed steps for removing the lift platform from the treadmill frame.
Replacing the Lift Platform
Instructions for correctly reinstalling the lift platform assembly.
Procedure 6.5 - Replacing the Drive Belt
Removing the Drive Belt
Steps for safely removing the drive belt from the treadmill.
Replacing the Drive Belt
Procedure for installing a new drive belt on the treadmill.
Procedure 6.6 - Replacing the Drive Roller or Drive Roller Bearings
Removing the Drive Roller
Step-by-step guide for removing the drive roller assembly.
Replacing the Roller Bearings and Shaft
Instructions for replacing roller bearings and shaft.
Replacing the Drive Roller
Steps for installing a new or repaired drive roller assembly.
Procedure 6.7 - Replacing the Take-Up Roller or Take-Up Roller Bearings
Removing the Take-Up Roller
Guide to safely removing the take-up roller from the treadmill frame.
Replacing the Roller Bearings and Shaft
Instructions for replacing bearings and shaft in the take-up roller.
Replacing the Take-Up Roller
Steps for installing the take-up roller assembly.
Procedure 6.8 - Replacing the Safety Switch Assembly
Removing the Safety Switch Cam
Steps to remove the safety switch cam from its mounting.
Removing the Safety Limit Switch
Instructions for disconnecting and removing the safety limit switch.
Replacing the Safety Switch Cam
Steps to reinstall the safety switch cam assembly.
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