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Core Health & Fitness Star Trac 4-CT Assembly Manual

Core Health & Fitness Star Trac 4-CT Assembly Manual

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CORE HEALTH & FITNESS
4-CT Crosstrainer
ASSEMBLY
MANUAL

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Questions and answers

Donald Scafidi
March 20, 2025

Our CT-4 Cross Trainer heart rate monitor is reading 0 regardless of how long or how many times the heart rate grips are held during training. In the Diagnostic Mode, the HR Monitor window shows a "grayed out" rate of 255. Any suggestions you can provide for troubleshooting/calibrating/resolving this issue would be appreciated. Thank you. -Don

1 comments:
Mr. Anderson
March 20, 2025

To troubleshoot the heart rate monitor issue on the Core Health & Fitness Star Trac 4-CT Cross Trainer:

1. Check Connections – Ensure the heart rate monitor sensors or chest strap are properly connected and in good condition.
2. Clean Sensors – Wipe the hand sensors with a clean, dry cloth to remove dirt or sweat that may interfere with readings.
3. Verify Contact – If using hand sensors, maintain firm and consistent contact without excessive grip pressure.
4. Check User Setup – Ensure user information is correctly entered in the console for accurate heart rate calculations.
5. Restart the Machine – Power off the unit, wait a few minutes, and restart to reset the system.
6. Inspect for Damage – Check the wiring and components for any visible damage or loose connections.
7. Test with Another User – Have a different user attempt to get a reading to rule out individual sensor issues.
8. Update Firmware – If applicable, ensure the console firmware is up to date.
9. Contact Support – If the issue persists, service may be required to replace faulty components.

The "grayed out" rate of 255 in Diagnostic Mode may indicate a sensor failure or a connection issue.

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Summary of Contents for Core Health & Fitness Star Trac 4-CT

  • Page 1 CORE HEALTH & FITNESS 4-CT Crosstrainer ASSEMBLY MANUAL...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS ........................2 PRODUCT SPECIFICATIONS ........................4 PART IDENTIFICATION ........................6 ASSEMBLY ........................7 10” LCD CONSOLE ..............12 10” TOUCHSCREEN CONSOLE ..............13 SUPPORT & SERVICE ........................14 Page 1...
  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS WARNING! Before using this product, it is essential to read the ENTIRE Owner’s Manual and ALL installation instructions. The Owner’s Manual describes equipment setup and instructs members on how to use correctly and safely. Read all warnings posted on the machine. Health related injuries may result from incorrect or excessive use of exercise equipment.
  • Page 4 Do not exceed the maximum allowable weight 13. For complete instructions refer to the Owner’s limit of: Manual. • 4-CT - 450 lbs. / 204 kg. SAVE THESE INSTRUCTIONS Care should be used when mounting or dismounting the equipment. Before mounting or dismounting, move the pedal on the mounting or dismounting side to its lowest position and bring the machine to a complete stop.
  • Page 5: Product Specifications

    PRODUCT SPECIFICATIONS Fig. 2 15” OpenHub Embedded Console shown SKU: 9-4080 Desc: 4-CT Crosstrainer Max User Unit Weight Width Length Height Weight 0-450 lbs 0-204 kg Page 4...
  • Page 6 Other Consoles Fig. 3 10” Touchscreen Console Fig. 4 LCD Console Page 5...
  • Page 7: Part Identification

    PART IDENTIFICATION Fig. 5 4-CT Features - 10” non-touchscreen shown Part Part Part Console Shroud Step Heart Rate Grips Flywheel Frame Mast Foot Platform Guard Transport Wheel Movable Handlebar Foot Platform Tie Rod Shrouds Page 6...
  • Page 8: Assembly

    ASSEMBLY Assembly instructions cover either 10” touchscreen or LCD console. For 15” Embedded, please see the console manual 620-8816 for additional wiring and configuration information. Required Tools: • Metric Socket Set • Metric Allen Key Set • Torque Wrench • #2 Phillips Screwdriver •...
  • Page 9 4. Use a 6mm allen key to finish securing the mast to the base frame using four (4) pieces each of the M8 x 20mm socket head cap screw (730-0889) and M8 counter-bore washer (718-5693). Fig. 7 5. Use a 4mm allen key to secure the M8 x 40mm set screw (740-4593) into the mast.
  • Page 10 7. Use a 19mm socket and a 19mm open- ended wrench to secure the handlebar to the tie rod using one (1) piece each of the M12 x 45mm hex head screw (110-4138) and the M12 nyloc nut (110- 3929), and two (2) pieces of the M12 flat washer (120-3411).
  • Page 11 12. Unpack the console, console mounting screws, and console install wiring instructions (620-8657) from the console box. 13. Set the lower rear display panel (701- 0345-XX) into place on the mast, then install the back console shroud (701- 0344-XX). Fig. 13 14.
  • Page 12 (Green/White) (Red/Black) Fig. 16 Wiring from Neck of Unit 16. Plug the three cables from Fig. 17 into the console as indicated in Fig. 18. Note: Lines E & F indicate the wiring path from the board to the rear console jacks.
  • Page 13: 10" Lcd Console

    18. Once the machine is in its final position, level the unit by turning the four leveling feet on the bottom rear of the frame until all four feet are contacting the floor and the unit is stable. 19. Use a 19mm open-ended wrench to tighten the lock nut to ensure the leveling feet are locked into position.
  • Page 14: 10" Touchscreen Console

    Use the arrow keys to highlight MODEL then press Use the arrow keys to highlight 4CT then press to confirm the selection. Fig. 22 10” TOUCHSCREEN CONSOLE Touch the top left corner, then the center and then the top left corner again.
  • Page 15: Support & Service

    SUPPORT & SERVICE For Technical Support, Service, Parts Orders or any Customer Service needs, please contact us direct by phone, email, or through our 24 hour support site: GLOBAL SUPPORT CENTER 4400 NE 77th Avenue, Suite 300 Vancouver, WA 98662 Tel: (360) 326-4090 •...
  • Page 16 © 2020 CORE HEALTH & FITNESS LLC PART NUMBER 620-8667, REV I All rights reserved. Star Trac, the Star Trac logo and StairMaster are registered trademarks of Core Health & Fitness, LLC. Schwinn and Nautilus are registered trademarks of Nautilus Inc. used under license to Core Health & Fitness LLC. Throwdown is a registered trademark of Throwdown Industries, LLC.