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Tow Tuff TMD-75ETD Owner's Manual

Adjustable electric trailer dolly 7,500lbs. load capacity
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Adjustable Electric Trailer Dolly
7,500lbs. Load Capacity
OWNER'S MANUAL
WARNING:
Carefully read and understand all ASSEMBLY AND OPERATION INSTRUCTIONS
before operating. Failure to follow the safety rules and other basic safety precautions
may result in serious personal injury.
Model# TMD-75ETD
07282023

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Summary of Contents for Tow Tuff TMD-75ETD

  • Page 1 Adjustable Electric Trailer Dolly 7,500lbs. Load Capacity OWNER’S MANUAL WARNING: Carefully read and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety precautions may result in serious personal injury. Model# TMD-75ETD 07282023...

  • Page 2: Intended Use

    For technical questions, please call 1-218-943-6290. INTENDED USE Tow Tuff brings the easy way to move trailers with the TMD-75ETD heavy-duty adjustable trailer dolly with 4 casters. This adjustable trailer dolly is the perfect way to move trailers into storage, through tight areas, &...
  • Page 3 9. Never operate trailer dolly in an environment containing explosive or combustible material. 10. Always remove the battery when the unit is not in use for extended periods. 11. Always use Tow Tuff charger to charge lead-acid battery pack, Other types of batteries may- burst causing damage and injury to person.

  • Page 4: Work Area

    SAVE THESE INSTRUCTIONS WORK AREA • Keep work area clean, free of clutter, and well lit. Cluttered and dark work areas can cause accidents. • Keep children and bystanders away while operating the adjustable electric trailer dol- ly.Distractions can cause you to lose control, so visitors should remain at a safe distance from the work area.
  • Page 5 All UNITS COME WITH 1. Handle bar assembly*1 2. Dolly body*1 3. Hitch ball adjusting stem assembly*1 4. Rear support assembly*2 5. Charger assembly*1 6. Accessory kit (pin assembly*2, square pin*2, bolt M10×55*1, nut M10*1, and domed plug*1) Fig. 1 5 of 14...

  • Page 6: Structure Introduction

    STRUCTURE INTRODUCTION 1. Start switch: Control the dolly to move "forward" or "backward" 2. Transformer: Voltage conversion, 24V to 12V 3. Controller: A device to preset instructions 4. 7-core socket: Provide 12V power supply to the electromagnetic brake. 5. Power wheel: Transmit the traction 6.
  • Page 7 ASSEMBLY Fig. 3 1. Installation of the handle bar assembly (See Fig.3) Open the lid of the control box, thread the handle assembly (4#) lead through the square opening at the front of the frame （#23） (Step 1) and lead it out through the large round hole on the side of the control box (#14) (Step 2).
  • Page 8 4. Installation of the rear support assembly Fig. 6 (See Fig.6) Insert the two rear support assemblies into the square holes of the frame (26#) respectively (Step 1), align the holes at the right positions and insert the 8×60 square pins (29#) (Step 2). 5.

  • Page 9: Cable Schematics

    CABLE SCHEMATICS Start switch Controller brake switch 7-core socket Relay Motor assembly Transformer Batteries Battery level indicator Power switch DC charging socket Attention: 1. Connect the terminals that are highlighted in blue above before first operating trailer dolly 2. Toggle the Start Switch forward and reverse to check if the electronic brake system of trailer functions correctly, if not toggle the Brake Switch that is highlighted in red and check again until electronic brakes function correctly.
  • Page 10 Operation of Electronic Brake System 1. Trailers equipped with Electronic Brake System can operate the electronic brakes via the start switch 2. Trailer dolly operator must connect the 7-Pin plug from trailer to the 7-core socket on trailer dolly in order to operate the electronic brake system on trailer.
  • Page 11 3. The rear support wheel assembly is intended to Fig. 10 provide support and increased stability during towing., and depending on ground conditions, the position can be adjusted up and down as well as forward and backwards relative to the main wheels.

  • Page 12: Overload Protection

    3. Shut down the power after use. And park the dolly in the correct position. Please maintain the battery charge level. BATTERY CHARGE LEVEL MUST BE MAINTAINED REGULARLY OTHERWISE THE LEAD ACID BATTERY MAY BECOME FULLY DISCHARGED, RESULTING IN DAMAGE TO THE BATTERY OR FAILURE FOR IT TO MAINTAIN ANY CHARGE.Do not charge batteries more than 4-5 hours at a time.

  • Page 13: Diagram & Parts List

    DIAGRAM & PARTS LIST 13 of 14...

  • Page 14: Warranty

    Part No. Description Q’ty Part No. Description Q’ty Handle sleeve Square pin Start switch Switch box Washer Handle bar assembly Pin assembly Hex nut M24×3 Rear axle 24V 800W Split pin 4×50 DC socket Nut M14×1.5 Battery box assembly Power wheel 16.5×6.5-8 Power switch Controller 24v 800w Voltage and battery level indicator...
  • Page 16 Size:210x285mm 157G双铜（彩色印刷） REV 07/31/23 6.02.00011.C002...

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