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Quinton TM55 - Service Manual

Quinton TM55
82 pages
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Cardiac Stress Treadmills
Service Manual
P/N 042099-001 Rev A

Table of Contents

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Questions and Answers

  • L
    lisaclarkAug 20, 2025
    What to do if Quinton TM55 Treadmill belt stops and an over-current error code appears?
    • R
      Renee CardenasAug 20, 2025
      If the Quinton Treadmill belt stops and an over-current error code appears, it might be due to stopping the belt for more than 2 seconds when it is set to ON. To resolve this: 1. Avoid stopping the belt for longer than 2 seconds. 2. Replace the deck and belt.
  • L
    Lisa JohnsonAug 22, 2025
    Why is my Quinton TM55 Treadmill making a squealing sound?
    • M
      michaelandersonAug 22, 2025
      If your Quinton Treadmill is making a squealing sound, similar to a loose automobile fan belt, it's likely that the drive belt is loose. Try adjusting the belt tension. If the squealing persists, consider replacing the belt.
  • M
    Megan SmithAug 25, 2025
    How to fix a squealing sound and walking belt slowing on Quinton Treadmill?
    • T
      Taylor KempAug 26, 2025
      If your Quinton Treadmill is making a squealing sound similar to an automobile fan belt, and the walking belt slows when your foot strikes the deck, the drive motor belt (poly-V drive belt) is likely slipping. To fix this, adjust the belt tension or replace the belt.
  • M
    matthewthompsonAug 28, 2025
    How to fix popping during grade change on Quinton Treadmill?
    • H
      heidipruittAug 28, 2025
      If you're experiencing popping sounds during grade changes on your Quinton Treadmill, it might be due to faulty elevation chain alignment. To resolve this, adjust the alignment of the sprockets.
  • L
    linda55Aug 31, 2025
    What causes knocking or thumping sound on Quinton TM55?
    • M
      Michael GonzalezAug 31, 2025
      A knocking or thumping sound on your Quinton Treadmill, with the rate increasing and decreasing with the walking belt speed, is likely due to the front or rear roller (pulley) assembly bearings. To resolve this, isolate and replace the faulty roller.
  • C
    Claudia SharpSep 5, 2025
    What to do if the walking belt slips on my Quinton TM55?
    • S
      Steven MyersSep 5, 2025
      If the walking belt on your Quinton Treadmill slips while the front roller turns, it's likely due to improper belt tension. You should adjust the belt tension. If the problem continues after adjustment, contact an authorized technician for assistance.
  • D
    David WellsSep 8, 2025
    Why won't my Quinton Treadmill change grade?
    • D
      Daniel CisnerosSep 8, 2025
      If your Quinton Treadmill will not change grade, the issue could be due to excess weight on the treadmill. Check Appendix B for the maximum load. If weight is not the issue, it may be an internal problem, and you should contact an authorized technician for service.
  • A
    Ashley AndrewsSep 12, 2025
    What to do if circuit breaker trips on Quinton TM55 Treadmill?
    • P
      Paula MorrisSep 12, 2025
      If your Quinton Treadmill's circuit breaker trips during normal operation, it indicates a power fault. In this case, service is required, and you should contact an authorized technician.
  • L
    Larry RichardsSep 13, 2025
    Why does the walking belt hesitate on my Quinton Treadmill?
    • A
      Alejandro MooreSep 13, 2025
      If the walking belt on your Quinton Treadmill hesitates, and adjusting the walking belt tension doesn't help, the problem may be an internal drive belt slipping. Service is required, so contact an authorized technician.
  • P
    perezmarkNov 16, 2025
    Why Quinton Treadmill won't start?
    • B
      Briana GordonNov 16, 2025
      Here are several reasons why your Quinton Treadmill might not be starting: * The treadmill might not be plugged in. If this is the case, plug the power cord into an appropriate outlet. * The circuit breaker on the treadmill might be set to Off. Set the treadmill circuit breaker to On. * The building circuit breaker might have tripped. Contact building maintenance to reset it. If the breaker trips again, check the outlet voltage and ensure the power at the outlet and breaker match the treadmill's rating. Also, check for a damaged power cord and replace the configuration plate if necessary. * The power to the stress monitor might not be on. Turn on the power to the stress monitor. * The power cord might be damaged. Remove the cord from the outlet and replace it. * A fuse in the ...

Summary

Theory of Operation

Troubleshooting

Diagnosis

Outlines potential problems covered and areas to check for diagnosis.

Error Flow Charts

Guides users through step-by-step troubleshooting using error codes.

Repair;Replacement and Calibration

Electrical Shock

Provides crucial warnings and safety precautions regarding high voltage.

Burns

Advises on avoiding burns from hot treadmill components.

Mechanical Hazards

Details safety precautions for mechanical parts like belts and gears.

Tools

Lists specialized tools required for repair and replacement procedures.

Removing the Treadmill Hood

Step-by-step instructions for safely removing the treadmill hood.

Replacing the Configuration Plate

Procedure for replacing the configuration plate module.

Replacing the AC Drive Module

Procedure for replacing the AC Drive Module unit.

Replacing the Poly-V Drive Belt

Detailed procedure for removing and replacing the poly-V drive belt.

Replacing the Drive Motor

Procedure for replacing the treadmill drive motor.

Replacing the Transformer

Instructions for removing and replacing the treadmill transformer.

Replacing the Grade Motor

Steps for replacing the treadmill's grade motor.

Replacing the Grade Potentiometer (Pot)

Detailed steps for replacing the grade potentiometer.

Replacing a Jammed Rack Gear

Procedure for dislodging and replacing a jammed rack gear.

Adjusting the Grade Limit Switches

Procedure for adjusting grade limit switches for proper operation.

Replacing the Walking Belt

Detailed steps for replacing the treadmill walking belt.

Preventative Maintenance

Safety Requirements

Cautions and Warnings

General safety precautions and warnings for operating the treadmill.

Specifications

Part Numbers

Quinton TM55 Specifications

General IconGeneral
Motor Power3.0 HP
Speed0.5 - 12 mph
InclineYes
Incline Range0-15%
Maximum User Weight400 lbs
Weight Capacity400 lbs
DisplayLED
Programs12 workout programs
Heart Rate MonitoringContact Grips

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