Chamberlain 1000SD, 2000SD 33

Repair Parts

Power Unit Parts
ew Drive	2
	2
4	1
4

	5		4	3
	5			3
		7		6
8c		7
8c	8b
8d				9
8d
	8a	8
		8
13				12
14

(Down)

Brown Contact LIMIT SWITCH ASSY. Wire

	DN		Grey
			Grey
Drive			Wire
Drive			UP
Gear
Center Limit		(Up)	Yellow
Contact		Contact	Yellow
Contact		Contact	Wire
			Wire


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

1	31D426	Drive shaft cover	9	41A4843	Interrupter cup
2	41B4245	Line cord	10	41A4837	Worm gear and retainer
3	30B363	Capacitor – 1/2 HP	11	41C4669	Wire harness assembly
	30B387	Capacitor – 1/3 HP	12	41C4672	RPM sensor assembly
4	12A373	Capacitor bracket	13	41D4674-1D Receiver logic board assembly
5	41A3150	Terminal block w/screws	14	41D4839-1	Cover – LM 1/2 HP
6	41D4671	Limit switch assembly		41D4839-4	Cover – LM 1/3 HP
7	12D554	Limit switch bracket	15	1C4840-1	Control Center access door
8	41D4759	Complete Motor Drive Assy., with	16	175C123	Light socket
8a	144B41	22T Pulley	17	108D47	Light lens
8b	144B42	28T Pulley
8c	20C14	Drive Belt
8d	158A69	Retainer Ring
8d	158A69	Retainer Ring

Contents

Page Determine the header bracket location The Protector System Test the Protector System Start by reviewing these important safety alert symbols: serious injury or death mechanical or from electric shock Read the instructions carefully Test Your Door for Balance • Lift the door about halfway as shown. Release the door It should stay in place, supported entirely by its springs •Raise and lower the door to see if there is any binding or sticking Sectional material. Parts may be "stuck" in the foam INTACT (see on page SECTIONAL Door or ONE-PIECEDoor with Track Installation ONE-PIECEDoor Without Track Installation Fasten the Rail To the Power Unit •Slip the coupling over the rail sprocket •Align the two screw holes in the rail with those in the Hardware Shown Actual Size Install the Trolley An improperly balanced door may not Determine Header Bracket Location ONE PIECE Door with Track 26) •Extend the line onto the header wall above the door of the door center only if a torsion spring or center bearing plate is in the ONE-PIECEDoor Without Track One-piecedoor without track pivot hardware EXAMPLE Distance from top of door Install the Header Bracket Fastening the Header Bracket to the Wall Fastening the Header Bracket to the Ceiling •Extend the vertical guideline onto the ceiling as shown •Mark holes designated for ceiling mount only. Drill Attach the Rail to the Header Bracket •Position the rail bracket against the header bracket •Align the bracket holes and join with a clevis pin as shown •Insert a ring fastener to secure Installation procedures are the same for sectional and one-piecedoors wall garage door tracks sending eye channels Position the Opener Follow instructions which apply to your door type as illustrated ONE-PIECEDoor with Track A 2x4 laid flat is convenient for setting an ideal door- to-raildistance • Raise the opener onto a stepladder each Reversing Sensor wires along the top of the rail. See page only glow steadily receiving eye sending receiving gently avoid snapping off bottom lens tabs neck Fasten Door Bracket SECTIONAL Door Installation Procedure installation. Note the correct UP placement, as stamped inside the bracket installation •Position the bracket on the face of the door within the following limits: All ONE-PIECEDoor Installation Procedure •Drill 5/16" pilot holes and fasten the door bracket with hardware supplied cut end down All ONE-PIECEDoors Assemble the Door Arm: •Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole overlap) •Secure with a ring fastener stop stop reverse down Simply wait 15 minutes and try again stops page Test The Protector System •Press the remote control push button to open the door •Place the opener carton in the path of the door reversing sensor is obstructed the indicator light in either sensor is off (alerting you dim or off reverse blink for 5 seconds on on off hold hold force fully closed standard neck KEY PART NO Rack assembly 41A4836 Installation Parts KEY Page Model 1702LM Model 59LM Model 88SD Model 66LM Outside Keylock: Model 82LM 8 foot Complete Rail: Model 83LM To allow an 8 foot door to open fully Garage Door Determining high point of travel: Force controls Travel limits Manual Release Rope & Handle LIMITED WARRANTY ON MOTOR Model 2000SD: Models 1000SD: © 1996, The Chamberlain Group, Inc 114A1794E