Cardiac Science ST 55 User manual

Cardiac Stress Treadmills
Service Manual
70-00298-01 A

CARDIAC STRESS TREADMILLS SERVICE
MANUAL
70-00298-01 A

Copyright © 2008 Cardiac Science Corporation. All rights reserved.
Notice: Due to rapid changes in computer technology, the specifications provided in this
manual are subject to change without notice.
Federal law restricts this device to sale by or on the order of a physician.
Trademarks
Quinton, Burdick, Q-Stress, and Quest are trademarks or registered trademarks of Cardiac
Science Corporation.
All other product and company names are trademarks or registered trademarks of their
respective companies.
For sales and technical support outside the USA, contact your local sales and technical
support representative.
Liability Notice
Failure to follow the conditions set forth below shall limit, to the extent allowed by law,
Cardiac Science Corporation responsibility for the safety, reliability, and performance of
this equipment:
The operator manual must be read in full by each operator before the product is first used.
Assembly operations, extensions, readjustments, modifications, or repairs must be carried
out only by personnel trained or authorized by Cardiac Science Corporation.
The electrical wiring within the treadmill’s setting and the electrical installation of the
treadmill must comply with the applicable local or provincial requirements.
The equipment must be used in accordance with the instructions for use.
70-00298-01 A TM 55/65 Treadmill 4.0
ii
Cardiac Science Corporation
3303 Monte Villa Parkway
Bothell, WA 98021, USA
[phone] (USA and Canada)
[phone]
[email protected]
www.cardiacscience.com
MDSS GmbH
Schiffgraben 41
D-30175 Hannover
Germany
EC REP

70-00298-01 A Contents iii
Contents
Contents
Chapter 1: Safety
Safety Terms and Definitions................................................................. 1-2
Warnings and Cautions ......................................................................... 1-3
Safety Notes........................................................................................... 1-6
Symbol Definitions................................................................................ 1-7
EMC Declaration Tables ....................................................................... 1-9
Electromagnetic Emissions .............................................................. 1-9
Electronic Immunity ..................................................................... 1-10
Recommended Separation Distances ............................................. 1-12
Chapter 2: Introduction
Controls................................................................................................. 2-2
Operation........................................................................................ 2-2
Power .............................................................................................. 2-2
Emergency Stop Button .................................................................. 2-2
Indicators............................................................................................... 2-3
Installation............................................................................................. 2-3
Chapter 3: Theory of Operation
Overview ............................................................................................... 3-2
Headframe Assembly....................................................................... 3-2
Deck and Roller Assembly............................................................... 3-2
Stress Monitor to Treadmill Interface ....................................................3-2
Headframe Assembly ............................................................................. 3-3
Input Power Module ....................................................................... 3-3
Drive Board..................................................................................... 3-3
Transformer Assembly..................................................................... 3-3
Drive Motor Assembly .................................................................... 3-3
Grade Motor Assembly and System................................................. 3-4
Deck and Roller Assembly ..................................................................... 3-4
Chapter 4: Preventative Maintenance
Recommended Service ........................................................................... 4-2
Routine Maintenance............................................................................. 4-2
Visual Inspection............................................................................. 4-2
Cleaning the Treadmill Surfaces ............................................................ 4-2
Disinfection..................................................................................... 4-2

Contents 70-00298-01 A
iv
Contents
Vacuuming Under the Treadmill Hood.................................................4-3
Frequency........................................................................................4-3
Replacement Schedules ..........................................................................4-3
Electrical Testing ...................................................................................4-3
Chapter 5: Repair/Replacement and Calibration
Electrical Shock......................................................................................5-2
Burns .....................................................................................................5-2
Mechanical Hazards...............................................................................5-2
Tools......................................................................................................5-3
Removing the Treadmill Hood ..............................................................5-4
Replacing the Configuration Plate .........................................................5-6
Replacing the Power Cord .....................................................................5-7
Hard-wired Cords on Low Voltage Units........................................5-7
Detachable Cords on High Voltage Units .......................................5-7
Replacing the AC Drive Module............................................................5-8
Bus Recovery System (BRS).................................................................5-10
Replacing the Tensioner....................................................................... 5-11
Replacing the Poly-V Drive Belt ..........................................................5-13
Replacing the Drive Motor ..................................................................5-14
Replacing the Transformer................................................................... 5-16
Replacing the Grade Motor..................................................................5-17
Replacing the Grade Motor Chain ................................................5-18
Replacing the Grade Potentiometer (Pot).............................................5-19
Grade Pot Wires............................................................................ 5-20
Removing the Rack Gears ....................................................................5-21
Reassembling the Rack Gears...............................................................5-22
Replacing a Jammed Rack Gear ...........................................................5-23
Replacing the Pinion Shaft...................................................................5-24
Adjusting the Grade Limit Switches.....................................................5-26
Walking Deck Assembly ...................................................................... 5-27
Replacing Rollers ................................................................................. 5-28
Removing the Deck Assembly from Headframe................................... 5-29
Replacing the Walking Belt..................................................................5-30
Removing the Deck ............................................................................. 5-31

70-00298-01 A Contents v
Contents
Adjusting the Walking Belt.................................................................. 5-32
Belt Tension.................................................................................. 5-32
Walking Belt Tracking .................................................................. 5-33
Replacing the Emergency Stop Switch ................................................. 5-35
Replacing the Emergency Stop Cable................................................... 5-36
Calibration Procedures......................................................................... 5-37
Grade Potentiometer (Pot) Calibration ......................................... 5-37
Chapter 6: Troubleshooting
Diagnosis ............................................................................................... 6-2
Electrical Problems.......................................................................... 6-2
Electronic Problems......................................................................... 6-2
Mechanical Problems ...................................................................... 6-2
Tools ..................................................................................................... 6-3
Electrical Problems ................................................................................ 6-4
Electronic Problems ............................................................................... 6-5
Error Codes..................................................................................... 6-5
Mechanical Problems ............................................................................. 6-6
Walking belt.................................................................................... 6-6
Drive Belt........................................................................................ 6-6
Treadmill Noise .............................................................................. 6-7
Error Flow Charts .................................................................................. 6-8
Bus Voltage Flow Chart .................................................................. 6-9
Grade Error Flow Chart ................................................................ 6-10
Drive Motor Flow Chart ............................................................... 6-11
Communications Link Flow Chart................................................ 6-12
Grade Problems Flow Chart.......................................................... 6-13
Appendix A: Specifications
Cardiac Stress Treadmills Specifications.................................................A-2
Power Requirements ..............................................................................A-3
Speed Vs. Weight Range........................................................................A-4
Appendix B: Part Numbers
Final Assemblies.....................................................................................B-2
Spares ....................................................................................................B-3
Placement of Spare Parts........................................................................B-5

Contents 70-00298-01 A
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Contents
Appendix C: Drawings
Wiring Diagrams .................................................................................. C-1
Appendix D: Diagrams
Wiring Diagram, Low Voltage Treadmill..............................................D-2
Wiring Diagram, High Voltage Treadmill ............................................D-3

TM 55/65 Treadmill 4.0 70-00298-01 A 1-1
1Safety
Contents
◆Safety Terms and Definitions 1-2
◆Warnings and Cautions 1-3
◆Safety Notes 1-6
◆Symbol Definitions 1-7
◆EMC Declaration Tables 1-9
This manual contains information for servicing and repairing the Cardiac Stress
treadmills, models TM55/TM65 and ST55/ST65, to the module level. The manual
covers both domestic and international versions of the treadmills, which can differ in
voltage and mandatory emergency stop button.
This manual is designed for authorized service personnel with proper training. There are
no user-serviceable parts in the treadmills. Any attempt by non-authorized personnel to
service the treadmill may void the warranty.
Before servicing the treadmill, read the safety requirements specified in this chapter.
Use this manual only when servicing Cardiac Science Stress treadmills. Do not use it for
other treadmills.

70-00298-01 A TM 55/65 Treadmill 4.0
1-2
Safety
Safety Terms and Definitions
The symbols shown below identify potential hazard categories. The definition of each
category is as follows:
!
WARNING!
This alert identifies hazards that may cause serious personal injury or death.
!
Caution.
This alert identifies hazards that may cause minor personal injury, product damage, or
property damage.

TM 55/65 Treadmill 4.0 70-00298-01 A 1-3
Warnings and Cautions
Warnings and Cautions
Before operating any treadmill, ensure the following warnings and cautions are understood
and followed.
!
WARNING!
The treadmill must be on an appropriate, dedicated electrical circuit with a power rating that
meets the electrical specification on the treadmill serial number label. Nothing else should
be connected to the circuit.
!
WARNING!
As long as the treadmill is plugged into a powered outlet and the treadmill circuit breaker is
set to ON, the treadmill is receiving power, even when the monitoring system is turned off.
Do not place hands beneath the treadmill while it is plugged in.
!
Caution
Read this manual in full before operating the treadmill.
!
Caution
Before each use of this equipment, check the power receptacle for signs of damage. Do not
operate the equipment if the integrity of these items is in question.
!
Caution
Be sure the connection for the optional Emergency Off switch is secure. Test the switch to
verify proper operation. Do not operate the equipment if the integrity of these items is in
question.
!
Caution
Keep the treadmill area clear. Maintain a minimum open space of 1.5 feet (0.5 meter) on each
side and 6 feet (2 meters) at the rear.
!
Caution
The Cardiac Stress Treadmill should not be used adjacent to or stacked with other
equipment. If adjacent or stacked use is necessary, the Cardiac Stress Treadmill should be
observed to verify normal operation in the configuration in which it will be used.
!
Caution
Do not operate this equipment in the presence of flammable anesthetic mixtures.
!
Caution
Regularly inspect cables and treadmill belts for wear or damage. Do not operate the
equipment if the integrity of these items is in question.