Install the Idler Pulley | Craftsman 139.5391 guide

ASSEMBLY STEP 2

Fasten the Rail to the Motor Unit

•Insert a 1/4"-20xl-3/4 bolt into the cover protection bolt hole on the back end of the rail as shown.

Tighten securely with a 1/4"-20 lock nut. Do NOT overtighten.

•Remove the two bolts from the top of the motor unit.

•Place the "U" bracket, flat side down onto the motor unit and align the bracket hole with the bolt holes. Fasten with the previously removed bolts.

•Align the rail assembly with the top of the motor unit. Slide the rail end onto the "U" bracket, all the

way to the stops that protrude on the top and sides of the bracket.

•Attach spreader to the motor unit with two screws.

HARDWARE SHOWN ACTUAL	SIZE
	©
	Lock Nut
Bolt 1/4"-20x1-3/4	1/4"-20

To avoid SERIOUSdamage to garagedoor opener, use ONLYthose bolts/fasteners mounted in the top of the opener.

Hex Screws _==_o

8-32x7/16"11I"

I I

I i

I _ Chain

Spreader

Bolts -

Motor Unit _Sprecket

"U" Bracket

Bolt

Cover

SLIDE RAIL TO STOPS

ON TOP AND SIDES

OF BRACKET

Lock Nut

ASSEMBLY STEP 3

Install the Idler Pulley

Chain and Cable

•Lay the chain/cable beside the rail, as shown. Grasp the end of the cable and pass approximately 12" (30 cm) of cable through the window. Allow it to hang until Assembly Step 5.

•Remove the tape from the idler pulley. The inside center should be pre-greased. If dry, regrease to ensure proper operation.

•Place the idler pulley into the window as shown.

•Insert the idler bolt from the top through the rail

and pulley. Tighten with a 3/8" lock washer and nut underneath the rail until the lock washer is

compressed.

•Rotate the pulley to be sure it spins freely.

•Insert a 1/4"-20xl-3/4 bolt into the trolley stop hole in the front of the rail as shown. Tighten securely with a 1/4"-20 lock nut.

HARDWARE SHOWN

	Trolley
				Bolt
			Grease
			Inside Pulley
			Idler
Lock				Stop HOl,
Washer				Stop HOl,
Washer			Pulley
3/8"			Pulley	Trolley
I_1	Nut 3/8"	Cable Link	/

I

Lock

_ut

Idler Pulley

ACTUAL SIZE

Idler Bolt

Bolt 1/4"-20xl-3/4

Lock Nut 1/4"-20

Nut 3/8"

Lock Washer 3/8"

9

Image 9

Craftsman 139.5391 owner manual Install the Idler Pulley, Fasten the Rail to the Motor Unit

Contents

Garage Door Opener Abridor DE Puerta DE Cochera Table of Contents Preparing your garage door Tools neededSectional Door One-Piece Door Sectional Door Installation Sectional Door InstallationsPlanning ONE-PIECE Door Installations ONE-PIECE Door Without TrackONE-PIECE Door with Track Carton Inventory Hardware Inventory Assembly Hardware Assemble the Rail & Install the lolley Assembly Step Fasten the Rail to the Motor Unit Install the Idler Pulley RexScrews Install the Chain/Cable Installation Tighten the ChainTrolley Determine the Header Bracket Location Installation Step Install the Header Bracket Wall Header Bracket InstallationCeiling Header Bracket Installation Attach the Rail to the Header Bracket Sectional Door or ONE-PIECEDOOR with Track Position the Opener Hidden Hang the Opener Outside Keylock Accessory Connections Install the Door Control Attach the Emergency Release Rope and Handle Install the Light Electrical Requirements Install The Protector System Important Information about Safety Reversing SensorFacing the door from inside the garage Wall installation Installing the Brackets Mounting and Wiring the Safety Sensors Aligning the Safety SensorsTroubleshooting the Safety Sensors Fasten the Door Bracket Sectional DoorsUre Screws not provided to fasten the bracket to the door ONE-PIECE Doors Sectional Doors only Connect Door Arm to Trolley Adjustment procedures, Figure Closed door adjustment decrease Down travel limitALL ONE-PIECE Doors Adjust the UP and Down Travel Limits Adjustment StepTravel cycle after each adjustment HOW and When to Adjust the Limits Adjust the Force HOW and When to Adjust the ForcesTest the Down close force Adjust Test the Safety Reversal SystemTest The Protector System Test Using Your Garage Door Opener OperationActivate your opener with any of the following Disconnect the Trolley Using Wall.Mounted To Open the Door Manually ControlLockout position Trolle Once a Month Care of Your OpenerTwice a Year Once a Year My lights will not turn off when door is open Having a PROBLEM?My remotes will not activate the door My door reverses for no apparent reason Symptom LED is not lit on door control Not glow steadyTom Motor unit doesnt operate Using the Learn Button Using the Premium Control Console To Add or Reprogram a Hand.held Remote ControlProgramming To Erase All Codes From Motor Unit Memory Add, Reprogram Or Change Keyless Entry PIN Using the Learn Button Using the Premium Control Console Repair Parts Rail Assembly Parts Installation PartsDescription MotorUnitAsmblyPas WA R RJ AccessoriesExtemsiOn Bracketsi 139.53786 139i53709DO Gleaan Brake Revisi6n de los Simbolos y Trminos de Seguridad Herramientas necesarias Preparaci6n de !,,1 puerta de su cochera Instalacin CON UNA Puerta Seccional Planificaci6n INSTALACI6N CON Puertas DE UNA Sola Pieza Planificaci6n continUa Inventario de la Caja de Cart6n Rcrascadtrol TORNILLERfA Y Piezas Para LA Instalacin Inventario de Piezas Monte el Riel e instale el Trole Instale la Polea Loca Fije el Riel a la Unidad del Motor Instale la Cadena y Cable Iii!iii!iii!iii!iii!iii!iii!iii!iii!iii!iii!iii!iiTEIA Apriete la Cadena Instruccion ES IM Portantes Para Determine d6nde va a instalar La M6nsula del Cabezal INSTALACION, Paso Instale la Mnsula del Cabezal Coloque el Riel en la Mnsula del Cabezal Retire la espuma de embalaje Coloque el Abridor en Posici6n Cuelgue el Abridor Conexiones pare la Unidad de Control Exterior Instale la Unidad de Control de la Puerta Instale la Luce Coloque la Cuerda y la Manija de Emergencia Requisitos para la Instalaci6n Elctrica ¢!A Instale La Sistema de Protecci6n Si se instalay se alinea oorreotamente, el sensordelEstos sensoresse deben instalaren el interiorde la Instatacl6n en la pazd Flgura 2 y SiguientesInstatacl6n en el p!$o Flgura La ilustraci6n COMe Alinear LOS Sensores DE Seguridad Fije la Mnsula de la Puerta INSTALACION, Paso 1 Puertas DE UNA Sola Pieza Flgura Conecte el Brazo de la Puerta al Trole Conecte e! braze de la puerta a! trote Procedlmlento de ajuste, Flgura St la puerta no se abre per !o menos 1.5 m 5 pies Ajuste el Limite del Recorrido Hacia Arriba y Hacia Abajo Pruebe la fuerza de/recorrldo Hacia Arriba abrlr Ajuste la Fuerza Pruebe el Sistema de Retroceso de Seguridad Pruebe La Sistema de Protecci6nAjuste C6mo Usar su Abridor de Puerta de Cochera Para reducir el riesgo de lesiones graves o la muerte C6mo Usar la Unidad de Control de Pared C6mo Abrir la Puerta ManualmenteMarius Ascondiciones ERTErt¢i Sl Tiene Algun Problema Sfntoma E! LED del control de ta puerta no se enclende Tabla de Diagn6stico Coro Usar LA Consola DE Control Premium C6mo Agrogar o Reprogramar Un Control Remoto ManualSuelte los botones cuandolab lucos Controles Remotos Funciones Para porter un PiN temporal Enoendida por 30 segundos Reface!ones y Servlclo Sears $61o estan dlsponlbles a travd$ de MY-HOME