Craftsman 139.53674SRT owner manual Start by reviewing these important safety alert symbols, Page

Contents	Page
A review of safety alert symbols	2
You'llneed tools	3
Safety informationregarding garage door locks
and ropes	3
Testing your garage door for sticking,binding
and balance	3
Illustretionof sectional door installaUon	4
Illustration of one-piece door installation	5
Carton inventory	6
Hardware inventory.:	7
Assembly section - pages 8 - 11
Assemble T-rail	8
Attach cable pulley bracket	8
Instail trolley ...?	9
Fasten T-reJlto opener	g
Install chin/cable	10
Attach sprocketcover	10
Tighten b_echain and cable	11
Installation section - pages 11 - 27
Installationsafety inetmctions	11
Determine header bracket location
Sectional door	12
One-piece door	13
Install the header bracket	14
Attach the T-raJ1to header bracket	15
Position the opener	16
Hang the opener	17
Install the door control	18

Contents				Page
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, 23
Fasten door bracket (sectional door)				24
F:asten 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- 30
Travel limit adjustments				28
Force adjustments				29
Test the safety reversingsensor				30
Test the safety	reverse system			30
Operation 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, 35
Repair parts, rail assembly				36
Repair parts, installat_t				36
Repair parts, opener assembly				37
Accessories				38
Index				39
How to order repair parts				40
Maintenance agreement				40
Warranty				40

Start by reviewing these important safety alert symbols

MechanicalElectrical

When you see this Safety Symbol on the following pages, It will alert you to the possibility of damage to your garage door and/or the garage door opener If you do not comply with the corresponding instructions. Read the instructions carefully.

This garage door opener is designed and tested to offer safe service provided it Is Installed, operated, maintained and tested in strict accordance with the safety instructions contained in this manual.

2