Craftsman 139.53664SRT2 User Manual
Craftsman, Owner’s manual, Garage door opener 1/2 hp
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Owner’s
Manual
Model No.
139.53664SRT2
For Residential Use
Only
Caution:
Read and follow all
safety rules and
operating instructions
before first use of this
product.
Fasten the manual
near the garage door
after installation.
Complies with UL 325
regulations effective
January 1, 1993
CRAFTSMAN
GARAGE DOOR OPENER
1/2 HP
Safety Precautions
Assembly
Installation
Adjustment
Care and Maintenance
Operation
Troubleshooting
Parts List
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.