Chamberlain 3130 1/3 HP, 3240 1/2 HP Motor Unit Assembly Parts

Motor Unit Assembly Parts

	9	13
	9	9a
	1	10
	2	10
	2

5 8

	Brown	(Down)
	Brown	Contact
	Wire
		DN
	Drive
	Gear
14	11	Center Limit
		Contact

LIMIT SWITCH ASSY.

Grey

Wire

(Up)Yellow

Contact Wire

KEY	PART		KEY	PART
NO.	NO.	DESCRIPTION	NO.	NO.	DESCRIPTION

1	31C568	Drive shaft cover
2	41B4245	Line cord

330B620 Capacitor – 1/2 HP

30B638 Capacitor – 1/3 HP

441A3150 Terminal block w/screws

541D4671 Limit switch assembly

641A6241 Motor drive assy. complete

6a	20B21-1	Drive belt
7	41C4672	Screw drive RPM kit

841A4837-1 Worm gear and retainer

941A6335 Low voltage wire harness

41A6334

High voltage wire harness

1041AS050R1 Receiver logic board (3130) 41AS050R2 Receiver logic board (3240)

1141A5525-57 Cover (Model 3130)

	41A5525-53	(Model 3240)
12	41C22-1	Drive coupling hub
13	175B88	Light socket
14	108D79	Light lens

Contents

For Residential Use Only Introduction2-5 Assembly Installation7-22 Adjustment23-25 Operation26-30 Preparing your garage door Tools needed Planning Carton Inventory Fasten the Rail to the Motor Unit INSTALLATION Determine the Header Bracket Location Install the Header Bracket Attach the Rail to the Header Bracket Install The Protector System® INSTALLING THE BRACKETS Garage door track installation (preferred): Wall installation (Figures 2 & 3): Figure Floor installation (Figure 4): MOUNTING AND WIRING THE SAFETY SENSORS Recommended Wire Routing Position the Opener Hang the Opener Install the Door Control Install the Lights Attach the Emergency Release Rope and Handle Electrical Requirements Complete Safety Reversing Sensor Installation Fasten the Door Bracket ONE-PIECEDOORS Metal Doors: Connect Door Arm to Trolley ALL ONE-PIECEDOORS 1.Assemble the door arm, Figure 4: 2.Adjustment procedures, Figure 5: •Open door adjustment: decrease UP travel limit •Closed door adjustment: decrease DOWN travel limit Adjust the UP and DOWN Travel Limits Adjust the Force Test the Safety Reversal System Test the Protector System® Using Your Garage Door Opener Using the Wall-MountedDoor Control To Open the Door Manually CARE OF YOUR OPENER LIMIT AND FORCE ADJUSTMENTS: MAINTENANCE SCHEDULE Once a Month Once a Year HAVING A PROBLEM My door will not close and the light bulbs blink on my motor unit: 2.My remotes will not activate the door: My door reverses for no apparent reason: 5.My lights will not turn off when door is open: 1 FLASH 2 FLASHES 3 FLASHES 4 FLASHES 5 FLASHES To Add and Reprogram an Additional Hand-heldRemote Control To Erase All Codes From Motor Unit Memory *3-ButtonRemotes To Add, Reprogram or Change a Keyless Entry PIN Rail Assembly Parts Installation Parts Motor Unit Assembly Parts ACCESSORIES 1702LM Outside Quick Release: 371LM 1-ButtonSecurity✚® Remote Control: LIFTMASTER 1 YEAR LIMITED WARRANTY LIFETIME MOTOR WARRANTY (MODEL 3240) 2 YEAR LIMITED MOTOR WARRANTY (MODEL 3130)