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Chamberlain 459950, 547445, HD900CD Fasten the Rail to the Motor Unit, Install the Idler Pulley

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ASSEMBLY STEP 2

Fasten the Rail to the Motor Unit

•Insert a 1/4"-20x1-3/4" 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, on the motor unit and align the bracket holes 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.

HARDWARE SHOWN ACTUAL SIZE

Lock Nut 1/4"-20

Bolt 1/4"-20x1-3/4"

ASSEMBLY STEP 3

Install the Idler Pulley

•Lay the belt beside the rail, as shown. Grasp the end with the hooked trolley connector and pass approximately 12" (30 cm) of belt through the window. Keep the ribbed side toward the rail, and 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"-20x1-3/4" bolt into the trolley stop hole in the front of the rail as shown. Tighten securely with a 1/4"-20 lock nut.

To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.

		Bolts	Motor Unit
	“U” Bracket		Belt Pulley
	Cover
Bolt	Protection
	Bolt Hole

		SLIDE RAIL TO
		STOPS ON TOP
	Lock Nut	AND SIDES
	Lock Nut	OF BRACKET
		OF BRACKET

Bolt

Rail

Pulley

Nut Washer

Idler Screwdriver

Bolt

Bolt

	Trolley
	Stop Hole
	Grease
	Inside Pulley
Lock	Idler
Lock	Pulley
Washer	Nut 3/8"
3/8"	Nut 3/8"

Lock

TrolleyIdler Nut

ConnectorPulley

HARDWARE SHOWN ACTUAL SIZE

Bolt 1/4"-20x1-3/4"

Lock Washer 3/8"

Lock Nut 1/4"-20

Nut 3/8"

Idler Bolt

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Contents

For Residential Use Only Introduction Assembly Installation Adjustment Operation Preparing Your Garage Door Tools needed Planning Planning (Continued) Carton Inventory Hardware Inventory Assemble the Rail & Install the Trolley Fasten the Rail to the Motor Unit Install the Idler Pulley Install the Belt and Attach the Belt Cap Retainer WARNING Determine the Header Bracket Location Install the Header Bracket Attach the Rail to the Header Bracket Position the Opener Hang the Opener Install the Door Control Install the Battery Install the Lights Attach the Emergency Release Rope and Handle Electrical Requirements Install The Protector System® INSTALLING THE BRACKETS Garage door track installation (preferred): Wall installation (Figures 2 and 3): Floor installation (Figure 4): MOUNTING AND WIRING THE SAFETY REVERSING SENSORS Mounting: Option A - Installation Without Pre-Wiring: Option B - Pre-WiredInstallation: Connect to garage door opener: ALIGNING THE SAFETY REVERSING SENSORS TROUBLESHOOTING THE SAFETY Fasten the Door Bracket ONE-PIECEDOORS Metal Doors: Connect Door Arm to the Trolley ALL ONE-PIECEDOORS 1. Assemble the Door Arm Program the Travel Limits Set the Force Test the Safety Reversal System Test The Protector System® IMPORTANT SAFETY INSTRUCTIONS Using Your Garage Door Opener Using the Wall-MountedDoor Control Standby Power Unit (Optional) To Open the Door Manually Care of Your Opener Having a Problem? (Troubleshooting) Diagnostic Chart 1 FLASH 2 FLASHES 3 FLASHES 4 FLASHES Smart Control Panel® Messages Message To Add or Reprogram a Hand-HeldRemote Control To Erase All Codes From Motor Unit Memory *3-ButtonRemotes (315 MHz) To Add, Reprogram or Change a Keyless Entry PIN Rail Assembly Parts Motor Unit Assembly Parts ACCESSORIES 7702COutside Quick Release: 8808C 8 Foot (2.4 m) Rail Extension: 8810C Page OUR LARGE SERVICE ORGANIZATION SPANS AMERICA AND CANADA www.chamberlain.com For professional installation, parts and service WHEN ORDERING REPAIR PARTS, ALWAYS GIVE Pour Résidences Seulement TABLE DES MATIÈRES Introduction Montage Pose Réglages Préparation de votre porte de garage Outils nécessaires Planiﬁcation Planiﬁcation (Suite) Inventaire de la boîte d’emballage Inventaire des ﬁxations MONTAGE - 1re OPÉRATION Montage du rail et pose du chariot MONTAGE - 2e OPÉRATION Fixation du rail sur le moteur MONTAGE - 3e OPÉRATION Pose de la poulie MONTAGE - 4e OPÉRATION Pose de la courroie et ﬁxation du capuchon de retenue de la courroie MONTAGE - 5e OPÉRATION Régler la tension POSE LA POSE ou MORTELLES : POSE – 1re OPÉRATION POSE - 2e OPÉRATION Pose du support de linteau POSE - 3e OPÉRATION Fixation du rail sur le support de linteau POSE - 4e OPÉRATION Positionnement de l'ouvre-porte POSE - 5e OPÉRATION Accrochage de l'ouvre-porte POSE - 6e OPÉRATION Pose de la commande de porte POSE - 7e OPÉRATION Pose de batterie de secours POSE - 8e OPÉRATION Pose des ampoules POSE - 9e OPÉRATION POSE - 10e OPÉRATION Exigences électriques POSE - 11e OPÉRATION Pose du Système Protector® POSE DES SUPPORTS Pose murale (Figures 2 et 3) : Pose au sol (Figure 4) : MONTAGE ET CÂBLAGE DES DÉTECTEURS INVERSEURS DU SECURITIÉ Montage : Option A - Installation sans les câbles préinstallés : Option B - Installation pré-câblée : Connexion à l’ouvre-portede garage : POSE - 12e OPÉRATION Fixation du support de la porte PORTES RIGIDES POSE - 13e OPÉRATION Fixation de la biellette de la porte au chariot POUR TOUTES LES PORTES RIGIDES 1. Assemblage des biellettes : RÉGLAGES – 1re OPÉRATION Programmation des limites de la course RÉGLAGES – 2e OPÉRATION Réglage de sensibilité RÉGLAGES - 3e OPÉRATION Contrôle du système d’inversion de sécurité RÉGLAGES - 4e OPÉRATION Essai du Systéme Protector® FONCTIONNEMENT ou DE MORT :