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Encore Medical Chattanooga Tru-Trac Model 4779 Service Manual

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SERVICE MANUAL
Tru-Trac® Traction Unit- Model 4779
TX® Traction Unit- Model 4759
Applies to Serial numbers 1000 and above
ISO 13485 Certifi ed
© 2006 Encore Medical, L.P.

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Summary of Contents for Encore Medical Chattanooga Tru-Trac Model 4779

  • Page 1 SERVICE MANUAL Tru-Trac® Traction Unit- Model 4779 TX® Traction Unit- Model 4759 Applies to Serial numbers 1000 and above ISO 13485 Certifi ed © 2006 Encore Medical, L.P.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Tru-Trac and TX® Therapeutic Traction Unit FOREWORD ..........1 6.8 CLAMP SPRING ASSEMBLY REMOVAL & REPLACEMENT ....37 1...

  • Page 3: Foreword

    ©2006 Encore Medical Corporation or its affiliates, Austin, Texas, USA. Any use of editorial, pictorial, or layout composition of this publication without express written consent from the Chattanooga Group of Encore Medical, L.P. is strictly prohibited. This publication was written, illustrated, and prepared for print by the Chattanooga Group of...

  • Page 4: 1 Theory Of Operation

    1 THEORY OF OPERATION Tru-Trac and TX® Therapeutic Traction Unit 1.1 OVERVIEW The Tru-Trac and TX traction unit is comprised of several pieces of proprietary hardware and software causing the unit to function as required allowing administration of traction therapy under the prescription and supervision of a licensed medical practitioner.

  • Page 5: 2 Safety Precautions

    2 SAFETY PRECAUTIONS Tru-Trac and TX® Therapeutic Traction Unit 2.1 PRECAUTIONARY DEFINITIONS 2.2 PRECAUTIONARY INSTRUCTIONS The precautionary instructions found in this A. Cautions section and throughout this manual are indicated by specific symbols. Understand these symbols and their definitions before operating this equipment.
  • Page 6 2 SAFETY PRECAUTIONS Tru-Trac and TX® Therapeutic Traction Unit 2.2 PRECAUTIONARY INSTRUCTIONS (continued) B. Warnings • Use of controls or adjustments or performance of • Do not remove the cover. This may cause unit procedures other than those specified herein may damage, malfunction, electrical shock, fire, or result in a hazardous traction related injury.
  • Page 7 2 SAFETY PRECAUTIONS Tru-Trac and TX® Therapeutic Traction Unit 2.2 PRECAUTIONARY INSTRUCTIONS (continued) C. Dangers • Use only accessories that are specially designed for this unit. Do not use accessories manufactured • DO NOT connect the unit to an electrical by other companies on this (table, unit, device, supply without first verifying that the etc.).

  • Page 8: 3 Nomenclature

    3 NOMENCLATURE Tru-Trac and TX® Therapeutic Traction Unit 3.1 TRUTRAC AND TX UNIT EXTERNAL COMPONENTS The nomenclature graphics below, Figure 3.1, Know the components and their functions before indicate the general locations of the major external performing any operation of or service to the components of the Tru-Trac and TX traction unit.

  • Page 9: Internal Components

    3 NOMENCLATURE Tru-Trac and TX® Therapeutic Traction Unit 3.2 INTERNAL COMPONENTS The nomenclature graphics below, Figure 3.2, Know the components and their functions before indicate the locations of the major internal performing any operation of or service to the components of the Tru-Trac and TX traction unit. Tru-Trac and TX traction unit.

  • Page 10: 4 Specifications

    4 SPECIFICATIONS Tru-Trac and TX® Therapeutic Traction Unit 4.1 PHYSICAL SPECIFICATIONS HEIGHT DEPTH WIDTH FIGURE 4.1 Width ....... . . 24 cm (9.5 in) Traction Modes.

  • Page 11: 5 Troubleshooting

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.1 TRUTRAC AND TX ERROR MESSAGES A. The following information is provided In the case of PC Boards, all troubleshooting as an aid in defining the Software Error and tests will be to validate a “Bad Board” Messages of the Tru-Trac and TX traction unit.
  • Page 12 5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.1 TRUTRAC AND TX ERROR MESSAGES (continued) In the event that an Error message or Warning appears beginning with a 2 or 3, immediately stop all use of the unit and contact the dealer or Chattanooga Group for service.
  • Page 13 5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.1 TRUTRAC AND TX ERROR MESSAGES (continued) In the event that an Error message or Warning appears beginning with a 2 or 3, immediately stop all use of the unit and contact the dealer or Chattanooga Group for service.
  • Page 14 5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.1 TRUTRAC AND TX ERROR MESSAGES (continued) In the event that an Error message or Warning appears beginning with a 2 or 3, immediately stop all use of the unit and contact the dealer or Chattanooga Group for service.
  • Page 15 Tru-Trac and TX® Therapeutic Traction Unit NOTES...

  • Page 16: TruTrac And Tx Traction Unit Testing

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.2 TRUTRAC AND TX TRACTION UNIT TESTING A. General- Electronic NOTE: Adjust Dielectric Withstand tester to indicate fault with 1. Information within this section in respect to 120 kOhm load across the output when at specified electronic components is intended to aid test voltage.

  • Page 17: Visual Inspection

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.3 VISUAL INSPECTION 5.5 LEAKAGE TESTS A. General Visually inspect the unit. A visual inspection can, to an experienced Technician, UNIT FAILING DIELECTRIC WITHSTAND AND/OR indicate possible abuse of the unit and LEAKAGE TESTS COULD INDICATE SERIOUS internal problems.

  • Page 18: On/Off Switch Test

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.6 ON/OFF SWITCH TEST A. Specification Unit turns Off and On B. Equipment Required None C. On/Off Switch Test Procedure 1. Place unit on level work surface. ON/OFF 2. Plug Power Cord into grounded power source SWITCH with appropriate voltage.

  • Page 19: Patient Interrupt Switch Test

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.8 PATIENT INTERRUPT SWITCH TEST A. Specification Unit displays Error 101 or 102 at the respective test. B. Equipment Required None C. Patient Interrupt Switch Test Procedure 1. Place unit on level work surface. Plug Power Cord into grounded power source with appropriate voltage.

  • Page 20: Cord Release And Retract Test

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.9 CORD RELEASE AND RETRACT TEST A. Specification Release ....Cord releases with less than 5 lbs tension Retract .

  • Page 21: Cord Release Troubleshooting

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.10 CORD RELEASE TROUBLESHOOTING A. Specification Solenoid Supply Voltage ..24 VDC ±5% Solenoid Gear . .Properly engages Driven Gear B. Equipment Required 1. Digital Multimeter 2.
  • Page 22 5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.10 CORD RELEASE TROUBLESHOOTING (continued) 2. Motor Control Board a. Disconnect Solenoid Harness from J8 on Motor Control Board. See Figure 5.14. b. Make certain unit is connected to an approved power supply outlet and turn unit On with Power Switch.

  • Page 23: Load Cell Test

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.11 LOAD CELL TEST A. Specification Touch Screen Reading ±10% B. Equipment Required 1. Calibration Fixture with calibrated Load Cell C. Load Cell Test Procedure 1. Secure unit to the Calibration Fixture. See Figure 5.16.

  • Page 24: Load Cell Troubleshooting

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.12 LOAD CELL TROUBLESHOOTING A. Specification Voltage to Load Cell ....10 VDC Voltage from Load Cell ....Variable Motor Control Board Voltage (U3) .
  • Page 25 5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.12 LOAD CELL TROUBLESHOOTING (continued) D. Voltage from Load Cell Tests NOTE: It will be necessary to have two people available for the following test. 1. Set Multimeter to read 10 VDC. Make connection with Pin 3 (Blue wire) and Pin 4 (Green wire) from the side of the RED LEAD...

  • Page 26: Touch Screen Test

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.13 TOUCH SCREEN TEST A. Specification Contrast Control ..Touch Screen Dims and Brightens Touch Screen ..Displays proper Screen B.

  • Page 27: Touch Screen Troubleshooting

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.14 TOUCH SCREEN TROUBLESHOOTING PIN 2 PIN 1 A. Specification Voltage to Touch Screen: J6 Connector ....5 VDC ±5% Display Connector .

  • Page 28: Power Supply Troubleshooting

    5 TROUBLESHOOTING Tru-Trac and TX® Therapeutic Traction Unit 5.15 POWER SUPPLY TROUBLESHOOTING A. Specification Power Supply Input . . 100 V-240 V (50/60 Hz) Power Supply Output ...24 VDC ±5% B.

  • Page 29: 6 Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.1 SIDE COVER REMOVAL & REPLACEMENT Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Side Cover (2 Req'd) ....47857 B.

  • Page 30: Top And Cord Guide Cover Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.2 TOP AND CORD GUIDE COVER REMOVAL & REPLACEMENT WHEN INSTALLING, RIBBON CABLE BLACK STRIP MUST BE Unplug the unit from the power source before TOWARD THE TOP OF THE MOTOR CONTROL BOARD. attempting removal or replacement procedures to prevent electrical shock.

  • Page 31: Rear Cover Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.3 REAR COVER REMOVAL & REPLACEMENT Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Rear Cover Assembly ....48110 B.

  • Page 32: Front Cover Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.4 FRONT COVER REMOVAL & REPLACEMENT PATIENT INTERRUPT Unplug the unit from the power source before SWITCH HARNESS attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Front Cover .
  • Page 33 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit The remaining removal and replacement procedures in this section require that the following be performed after component or assembly replacement to ensure proper alignment and operation of the unit: 1. COMPLETE CALIBRATION OF UNIT 2.

  • Page 34: Motor Control Board Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.5 MOTOR CONTROL BOARD REMOVAL & REPLACEMENT Unplug the unit from the power source before LOAD CELL HARNESS attempting removal or replacement procedures to USB HARNESS prevent electrical shock. A. Part Numbers Motor Control Board .

  • Page 35: Touch Screeen Assembly Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.6 TOUCH SCREEEN ASSEMBLY REMOVAL & REPLACEMENT TOP MOULDING PLATE Unplug the unit from the power source before MOUNTING SCREWS attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Touch Screen Assembly .
  • Page 36 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.6 TOUCH SCREEN ASSEMBLY REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. D. Replacing Touch Screen Assembly 1.

  • Page 37: Load Cell Assembly Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.7 LOAD CELL ASSEMBLY REMOVAL & REPLACEMENT LOAD CELL HARNESS Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Load Cell Assembly .
  • Page 38 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.7 LOAD CELL ASSEMBLY REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. D. Replacement of Load Cell Assembly 1.

  • Page 39: Clamp Spring Assembly Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.8 CLAMP SPRING ASSEMBLY REMOVAL & REPLACEMENT CLAMP SPRING ASSEMBLY Unplug the unit from the power source before SCREWS attempting removal or replacement procedures to 2 EACH SIDE prevent electrical shock. A.

  • Page 40: Traction Cord Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.9 TRACTION CORD REMOVAL & REPLACEMENT Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Traction Cord ......48031 B.
  • Page 41 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.9 TRACTION CORD REMOVAL & REPLACEMENT (continued) D. Traction Cord Replacement 1. Route Traction Cord through the Traction Cord Spool, Load Cell Pulley, and Top Guide • Unplug the unit from the power source before Pulley.
  • Page 42 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.9 TRACTION CORD REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. 2. Pull enough of the Traction Cord through the Traction Cord Spool to allow the knot to be tied.
  • Page 43 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.9 TRACTION CORD REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. Route Traction Cord through the Front Cord Guide Support.
  • Page 44 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.9 TRACTION CORD REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. NOTE: If adjusting Spring Tension only and not replacing the Traction Cord, it will be necessary to remove the Side Covers and have available the Tools required in 6.9, B.
  • Page 45 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.9 TRACTION CORD REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. 19. Install Clamp Spring Assembly. Refer to 6.8 Clamp Spring Assembly Removal &...

  • Page 46: Cord Tension Spring Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.10 CORD TENSION SPRING REMOVAL & REPLACEMENT Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Cord Tension Spring ....80653 B.
  • Page 47 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.10 CORD TENSION SPRING REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. D. Cord Tension Spring Replacement 1.

  • Page 48: Solenoid Assembly Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.11 SOLENOID ASSEMBLY REMOVAL & REPLACEMENT Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Solenoid Assembly ....48014 B.

  • Page 49: Power Supply Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.12 POWER SUPPLY REMOVAL & REPLACEMENT Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Power Supply ......27265 Power Supply Shield .
  • Page 50 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.12 POWER SUPPLY REMOVAL & REPLACEMENT (continued) POWER SUPPLY MOUNTING SCREWS Unplug the unit from the power source before GROUND attempting removal or replacement procedures to HARNESSES prevent electrical shock. D.

  • Page 51: Motor Assembly Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.13 MOTOR ASSEMBLY REMOVAL & REPLACEMENT Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Motor Assembly ..... . .48019 B.
  • Page 52 6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.13 MOTOR ASSEMBLY REMOVAL & REPLACEMENT (continued) Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. D. Motor Assembly Replacement 1. Position new Motor Assembly into Chassis and secure with the four Motor Assembly Screws, Lock washers, and Nuts.

  • Page 53: Motor Drive Gear Removal & Replacement

    6 REMOVAL & REPLACEMENT Tru-Trac and TX® Therapeutic Traction Unit 6.14 MOTOR DRIVE GEAR REMOVAL & REPLACEMENT SOLENOID REMOVED FOR CLARITY Unplug the unit from the power source before attempting removal or replacement procedures to prevent electrical shock. A. Part Numbers Motor Drive Gear .

  • Page 54: 7 Calibration

    7 CALIBRATION Tru-Trac and TX® Therapeutic Traction Unit 7.1 UNIT CALIBRATION Certain removal and replacement procedures require that complete Unit Calibration and Burn In be performed prior to placing the unit back into service. Failure to perform either of these procedures after certain component or assembly replacement will void warranty and may result in injury to patients and severe equipment damage.
  • Page 55 7 CALIBRATION Tru-Trac and TX® Therapeutic Traction Unit 7.1 UNIT CALIBRATION (continued) 6. Press the Clinical Resources button. See Figure 7.3. FIGURE 7.3 7. Simultaneously press the START, STOP, and Clinical Resources buttons. See Figure 7.4. 8. Press "Zero the Load Cell" on Touch Screen. FIGURE 7.4 See Figure 7.5.
  • Page 56 7 CALIBRATION Tru-Trac and TX® Therapeutic Traction Unit 7.1 UNIT CALIBRATION (continued) 10. Hold onto Traction Cord and press Rope CALIBRATE LOAD CELL Release to remove all slack from Traction BIAS Cord. 11. Press Calibrate Load Cell Bias on the Touch Screen.

  • Page 57: Touch Screen Calibration

    7 CALIBRATION Tru-Trac and TX® Therapeutic Traction Unit 7.1 UNIT CALIBRATION (continued) 16. Press Calibrate Motor Current on the CALIBRATE MOTOR Touch Screen. See Figure 7.9. CURRENT 17. Unit will display "Motor Current Calibration completed OK. " When Motor Current Calibration is complete. Touch anywhere to continue.

  • Page 58: Unit Burn In

    7 CALIBRATION Tru-Trac and TX® Therapeutic Traction Unit 7.3 UNIT BURN IN Certain removal and replacement procedures require that complete Unit Calibration and Burn In be performed prior to placing the unit back into service. Failure to perform either of these procedures after certain component or assembly replacement will void warranty and may result in injury to patients and severe equipment damage.

  • Page 59: 8 Parts

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.1 TOP COVER ASSEMBLY ITEM PART DESCRIPTION 47856 Top Cover 48007 Top Moulding Plate 27137 Screw 60803 Screw 48063 Touch Screen Assembly 48062 Turn Table Plate 47896 Hook Cover 47872 Cord Guide Cover...

  • Page 60: Side Covers

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.2 SIDE COVERS See Page 56 ITEM PART DESCRIPTION 47857 Side Cover 47884 Side Badge 47871 Knob Cap 47869 Lock Knob 27008 IEC Connector Cover 48113 Tru-Trac Badge (Model 4779) 48114 TX Badge (Model 4759)

  • Page 61: Front And Rear Covers

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.3 FRONT AND REAR COVERS ITEM PART DESCRIPTION 47858 Front Cover 48038 Left Spring 48070 Stand Off 48110 Rear Cover Assembly (includes wiring and hardware) 47851 Screw 48054 Right Spring 47878 Front Infi ll (Not Illustrated) 48040 Patient Switch Receptacle...

  • Page 62: Base And Extrusion Assembly

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.4 BASE AND EXTRUSION ASSEMBLY ITEM PART DESCRIPTION 47833 Extrusion 70208 Hex Nut 21387 Flat Washer 47832 Base Plate 60014 Anti Skid Feet 62951 Screw 48019 Motor Assembly...

  • Page 63: Chassis Assembly

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.5 CHASSIS ASSEMBLY ITEM PART DESCRIPTION 48009 Load Cell Assembly 21387 Flat Washer 48102 Shoulder Bolt 70369 Top Guide Pulley 48078 Top Guide Mounting Spacer 47998 Top Guide Pulley Axle 48031 Traction Cord 47851 Screw 47889...

  • Page 64: Traction Cord Spring Assembly And Power Supply

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.6 TRACTION CORD SPRING ASSEMBLY AND POWER SUPPLY ITEM PART DESCRIPTION 54758 Snap Ring 48106 Mounting Hub 73146 Square Key 48104 Screw 71934 Bearing 80653 Traction Cord Spring 80634 Spring Cover 21384 Flat Washer 47846 Screw...

  • Page 65: Solenoid And Clamp Assemblies

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.7 SOLENOID AND CLAMP ASSEMBLIES ITEM PART DESCRIPTION 48023 Clamp Assembly 47851 Screw 48014 Solenoid Assembly 21384 Flat Washer 47851 Screw 48097 Front Traction Cord Guide...

  • Page 66: Large Driven Gear And Spool Assembly

    8 PARTS Tru-Trac and TX® Therapeutic Traction Unit 8.8 LARGE DRIVEN GEAR AND SPOOL ASSEMBLY ITEM PART DESCRIPTION 47997 Retaining Bar 48103 Spool 72017 Set Screw 47851 Screw 80158 Clamp Foot 47840 48104 Screw 71934 Bearing 47839 Large Driven Gear with Shaft Assembly...

  • Page 67: 9 Schematics

    9 SCHEMATICS Tru-Trac and TX® Therapeutic Traction Unit 9.1 TRUTRAC AND TX TRACTION UNIT SCHEMATICS A. General Information 1. Due to the complex nature of the technology utilized by Chattanooga Group, the recommended PCB troubleshooting techniques are to determine “Bad Board” and board replacement only. No PCB component level troubleshooting is recommended, nor will information or parts be supplied by Chattanooga Group.

  • Page 68: Control Board

    Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Control Board- 47801 1 of 3...
  • Page 69 Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Control Board- 47801 2 of 3...
  • Page 70 Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Control Board-47801 3 of 3...

  • Page 71: Motor Control Board

    Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Motor Control Board- 47803 1 of 2...
  • Page 72 Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Motor Control Board- 47803 2 of 2...

  • Page 73: Patient Interrupt Switch

    Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Patient Interrupt Switch- 48056 1 of 1...

  • Page 74: Serial Interface

    Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Serial Interface- 47022 1 of 1...

  • Page 75: Smart Card

    Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Smart Card- 47807 1 of 1...

  • Page 76: Block Diagram

    Tru-Trac and TX® Therapeutic Traction Unit 9 SCHEMATICS Block Diagram 1 of 1...

  • Page 77: 10- Special Fixtures

    Tru-Trac and TX® Therapeutic Traction Unit 10 SPECIAL FIXTURES Calibration Fixture 1 of 4...
  • Page 78 Tru-Trac and TX® Therapeutic Traction Unit 10 SPECIAL FIXTURES Calibration Fixture 2 of 4...
  • Page 79 Tru-Trac and TX® Therapeutic Traction Unit 10 SPECIAL FIXTURES Calibration Fixture 3 of 4...
  • Page 80 Tru-Trac and TX® Therapeutic Traction Unit 10 SPECIAL FIXTURES Calibration Fixture 4 of 4...

  • Page 81: 11 Warranty

    Tru-Trac and TX® Therapeutic Traction Unit 11 WARRANTY Chattanooga Group (“Company”) warrants that the Tru-Trac and TX Traction Unit (“Product”) is free of defects in material and workmanship. This warranty shall remain in effect for two years (24 months) from the date of original consumer purchase.
  • Page 82 ISO 13485 Certifi ed 4717 Adams Road P.O. Box 489 Hixson, TN 37343 U.S.A. 1-423-870-2281 1-800-592-7329 U.S.A. 1-800-361-6661 CANADA +1-423-870-7200 OUTSIDE U.S.A +1 423-870-2046 OUTSIDE U.S.A. FAX chattgroup.com 48131A © 2006 Encore Medical, L.P. 0 4 1 3...

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