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Chamberlain 3110 1/3 HP, 3220 1/2 HP, 3220-267 1/2 HP Motor Unit Assembly Parts, 11a, 8d 8g

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Motor Unit Assembly Parts

1

2

17

(Down)

Brown Contact Wire

DN

Drive

Gear

Center Limit

Contact

LIMIT SWITCH ASSY.

Grey

Wire

UP

(Up)Yellow

Contact Wire

					7	15
			5			15
			5
			3	6		14
	8	8d 8g	4	8b		14
18					8d
18
		8e	8f	8a	8c	10
		8e	8f			10
11	11a					11
				9		11
				9

12

13

					16
					16

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

	1	31D477	Drive shaft cover	9	41C4672			Screw drive RPM kit
	2	41B4245	Line cord	10	41A4837-1 Worm gear and retainer
	3	30B532	Capacitor – 1/2 HP	11	41C5417			Low voltage wire harness
		30B533	Capacitor -- 1/3 HP	11a	41C5416			High voltage wire harness
	4	12A373	Capacitor bracket	12	41AS050			Receiver logic board assy.
	5	41A3150	Terminal block w/screws	13	41A5490-5			Cover (Model 3110)
	6	41D4671	Limit switch assembly		41A5490-6			(Model 3220)
	6	41D4671	Limit switch assembly	14	41C22-1			Drive coupling hub
	7	12D630	Bracket: light socket, limit switch	14	41C22-1			Drive coupling hub
	7	12D630	Bracket: light socket, limit switch	15	175C147			Light socket
	8	41A5388	Motor drive assy. complete with:	15	175C147			Light socket
	8	41A5388	Motor drive assy. complete with:	16	108D78			Light lens
	8a	144B41	22T Pulley	16	108D78			Light lens
	8b	144B42	28T Pulley	17	41A5387			Chassis with rail bracket
	8c	20B17	Drive belt	18	12B654			Motor support bracket
	8d	158A69	Retainer rings	18	12B654			Motor support bracket
	8d	158A69	Retainer rings
	8e	41C556	Isolator bracket spacers
	8f	41A5394	Assy. bracket motor mount
	8g	81B170-1	Shaft limit worm

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Contents

For Residential Use Only Introduction Assembly Installation Adjustment Operation Preparing your garage door Tools needed Planning Carton Inventory Fasten the Rail to the Motor Unit Install the Trolley Attach the Rail Brackets 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): Figure Wall installation (Figures 2 & 3): Floor installation (Figure 4): MOUNTING AND WIRING THE SAFETY SENSORS Recommended Wire Routing Do not use the lower (trolley) channels 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-Mounted Door 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 1. My door will not close and the light bulbs blink on my motor unit: 2. My remotes will not activate the door: 3. My door reverses for no apparent reason: 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: 59LM Outside Keylock: LIFTMASTER 1 YEAR LIMITED WARRANTY LIFETIME MOTOR WARRANTY (MODEL 3220) 2 YEAR LIMITED MOTOR WARRANTY (MODEL 3110)