Craftsman 139.18451DM Manuals

1 pdf manual(s) Craftsman 139.18451DM for free download (Document Types: Owner's manual)

Craftsman 139.18451DM Owner's manual [PDF] (80 pages)

  • Identifier: id-932941
  • Brand: Craftsman
  • Device: 139.18451DM Garage Door Opener
  • Type: PDF
  • Key Aspects: System Connectivity and Wiring Basics, Basic Configuration Guidelines, End-of-Life Handling and Disposal
  • UPD Date: 03.04.2026
  • Source File: 1225575.pdf
  • Pages: 80
  • Description: Product instruction handbook for the Craftsman 139.18451DM.
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  • 2 TABLE OF CONTENTS When you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them. The hazard may come from something mechanical or from electric shock. Read the warnings carefully. When you see this Signal Word on the following pages, it will alert you to the possibility of damage to your garage door and/or the garage d
  • 3 To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and damage. To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door may NOT reverse when required. • NEVER try to loosen, move or adjust garage door,
  • 4 Safety Reversing Sensor Header Wall Access Door — — — — — — — — Safety Reversing Sensor Gap between floor and bottom of door must not exceed 1/4
  • 5 Planning (Continued) ONE-PIECE DOOR INSTALLATIONS • Generally, a one-piece door does not require reinforcement. If your door is lightweight, refer to the information relating to sectional doors in Installation Step 11. • Depending on your door’s construction, you may need additional mounting hardware for the door bracket (Step 11). Safety Reversing Sensor Access Door FINISHED CEILING Support bracket & fastening hardware is required. See page 16.
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1/2 HP GARAGE DOOR OPENER For Residential Use Only Models • 139.18451DM • 139.18452DM • 139.18453DM • 139.18473DM • 139.18490DM Read and follow all safety rules and operating instructions before first use of this product. Fasten the manual near the garage door after installation. Periodic checks of the opener are required to ensure safe operation. Owner’s Manual ENGLISH Sears Canada, Inc., Toronto, Ontario M5B 2B8 ■ Safety Precautions ■ Assembly ■ Installation ■ Adjustment ■ Maintenance ■ Operation ■ Troubleshooting ■ Parts List ®

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