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Craftsman
Garage Door Opener
139.53674SRT2
Craftsman 139.53674SRT2 User Manual
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GARAGE DOOR OPENER
Owner
’
s
Manual
Model No.
139.53661SRT3
139.53671SRT3
139.53672SRT3
139.53673SRT3
139.53674SRT2
139.53677SRT3
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
®
■
Safety Precautions
■
Assembly
■
Installation
■
Adjustment
■
Care and Maintenance
■
Operation
■
T
roubleshooting
■
Parts List
®
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
2
Table of Contents
Default Chapter
2
Table of Contents
2
A Review of Safety Alert Symbols
2
You'll Need Tools
3
Safety Information Regarding Garage Door Locks and Ropes
3
Testing Your Garage Door for Sticking, Binding and Balance
3
Illustration of Sectional Door Installation
4
Illustration of One-Piece Door Installation
5
Carton Inventory
6
Assembly Hardware
7
Hardware Inventory
7
Assembly Section: Pages
8
Assemble T-Rail
8
Attach Cable Pulley Bracket
8
Install Trolley
9
Fasten T-Rail to Opener
9
Install Chain/Cable
10
Attach Sprocket Cover
10
Tighten the Chain and Cable
11
Installation Safety Instructions
11
Important Installation Instructions
11
Installation Section: Pages
12
Determine Header Bracket Location
12
Sectional Door
12
One-Piece Door
13
Install the Header Bracket
14
Attach the T-Rail to Header Bracket
15
Position the Opener
16
Hang the Opener
17
Install the Door Control
18
Install the Light and Lens
19
Attach Emergency Release Rope and Handle
19
Electrical Requirememts
20
Safety Reversing Sensor Information
21
Install the Safety Reversing Sensor
22
Fasten Door Bracket (Sectional Door)
24
Fasten Door Bracket (One-Piece Door)
25
Connect Door Arm to Trolley (Sectional Door)
26
Connect Door Arm to Trolley (One-Piece Door)
27
Adjustment Section: Pages
28
Travel Limit Adjustments
28
Force Adjustments
29
Test the Safety Reversing Sensor
30
Test the Safety Reverse System
30
Operation Safety Instructions
31
Important Safety Instructions
31
Care of Your Opener
31
Maintenance Schedule
31
Operation of Your Opener
32
Receiver and Remote Control Programming
33
Having a Problem
34
Repair Parts, Rail Assembly
36
Repair Parts, Installation
36
Rail Assembly Parts
36
Installation Parts
36
Repair Parts, Opener Assembly
37
Opener Assembly Parts
37
Accessories
38
Index
39
Receiver and Remote Control Programming
39
How to Order Repair Parts
40
Maintenance Agreement
40
Warranty
40
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Craftsman 139.53674SRT2 Specifications
General
Brand
Craftsman
Model
139.53674SRT2
Category
Garage Door Opener
Language
English
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