Chamberlain 1000SDR 1/3 HP, 2000SDR 1/2 HP Power Unit Parts

Repair Parts

Power Unit Parts

ew Drive

	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
		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	41D4674-10E	Receiver logic board assembly
5	41A3150	Terminal block w/screws	14	41D4839-6	Cover – LM 1/2 HP
6	41D4671	Limit switch assembly		41D4839-4	Cover – LM 1/3 HP
7	12D554	Limit switch bracket	15	1C4840-4	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

Contents

Page Assembly section - pages 6 – Installation section - pages 8 – Adjustment section - pages 24 – Start by reviewing these important safety alert symbols: serious injury or death Test Your Door for Balance Sectional One-Piece Operation at other than 120V 60 Hz will cause opener malfunction and damage Hardware Supplied KEEP THE FOAM INTACT SECTIONAL Door or ONE-PIECEDoor with Track Installation ONE-PIECEDoor Without Track Installation Fasten the Rail To the Power Unit Install the Trolley IMPORTANT INSTALLATION INSTRUCTIONS To reduce the risk of severe injury or death to persons: 1.READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS 5.Do not connect the opener to power source until instructed to do so Determine Header Bracket Location ONE-PIECEDoor Without Track One-piecedoor without track jamb hardware pivot hardware EXAMPLE Install the Header Bracket Attach the Rail to the Header Bracket IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR must Install the Safety Reversing Sensor (Receiving and Sending Eyes) Install the Safety Reversing Sensor Position the Opener Hang the Opener Install the Door Control and Connect all Wiring Electrical Requirements Complete Safety Reversing Sensor Installation Install the Lights and Lens Attach the Manual Release Rope and Handle Fasten Door Bracket All ONE-PIECEDoor Installation Procedure Connect Door Arm to Trolley All ONE-PIECEDoors Assemble the Door Arm: Adjustment Procedures for One-PieceDoors Open Door Adjustment: Decrease UP Travel Limit Adjust the UP and DOWN Limits Adjust the Force Test The Protector System ® Test the Safety Reverse System 1.READ AND FOLLOW ALL INSTRUCTIONS KEEP GARAGE DOORS PROPERLY BALANCED. See page Force and Limit Adjustment Controls The Remote Control Transmitter The Transmitter Battery Activate the opener with any of the following: The Remote Control Transmitter The Door Control •The Outside Keylock or Keyless Entry Lockout position “Security Plus” NOTE: To Add a Remote Control Security Plus Remote Control Adding a remote can also be done from the door control, as follows: Situation Probable Cause & Solution The opener doesn't operate from either the door control or the remote control: Opener operates from the remote control, but not from the door control: The door operates from the door control, but not from the remote control: (continued) Rail Assembly Parts Installation Parts KEY PART NO Power Unit Parts Model 1702LM Outside Quick Release Model 971LM Remote Control Model 59LM Garage Door Manual Release Rope & Handle Opener Terminals Operational Noise Receiver & Remote Controls