THE CHAMBERLAIN GROUP, INC.
A Unit of Duchossois Industries, Inc.
845 Larch Ave., Elmhurst, Ill. 60126
Owners Manual
Garage Door Opener
ALL MODELS IN ARE BOLD ARE DELUXE (2 LIGHTS)
MODEL
550-9
NUMBERS
550-6
450GM
140GM
550TV
500TV
250TV
550
450
350
240
150
140
450-9
350-9
240-9
150-9
450-6
350-6
240-6
150-6
140-9
140-6
140TV
250-9TV
140-9TV
140-6TV
550-9TV
500-9TV
550-6TV
500-6TV
250-6TV
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FEATURES OF YOUR OPENER
1. Opener Lights: Turn on and off automatically with 4-1/2
minute illumination for your safety and convenience. Provide
constant LIGHT when Light Switch is ON.
5. Motor Power: Permanently lubricated motor with automatic
reset.
6. Digital Radio Controls: Codes can be easily changed by the
2. Safety System: Independent up and down force adjustment.
The door REVERSES automatically when obstructed in DOWN
direction. The door STOPS when obstructed in UP direction.
owner.
7. Easy Limit Adjustment: Limits of door opening and closing
adjusted by turning screws without removing chassis cover.
3. Emergency Disconnect: Pull cord disconnect permits manual
8. Lock Switch: Prevents operation of opener from transmitter.
When LOCK Switch is ON, the opener can be operated in the
UP direction ONLY, from the Wall Control or optional Key
Switch and Keyless Entry accessories, (See below).
door operation.
4. Automatic Reconnect: Trolley halves reconnect for automatic
operation when opener is energized after emergency disconnect.
SPECIFICATIONS
SAFETY
MOTOR
Personal..................................Push button and automatic reversal in
down direction. Push button and
Automatic stop in UP direction.
Electronic................................Independent UP and DOWN force
adjustment screws.
Type........................................Permanent split capacitor
Speed......................................1500 rpm
Volts........................................120 Volts AC - 60 Hz. Only
Current....................................4.5 amperes
Electrical.................................Motor overload protector & low voltage
push button wiring.
DRIVE MECHANISM
Limit device.............................Circuit actuated by limit nut
Limit Adjustment.....................Screwdriver adjustment on side panel
Start circuit .............................Low voltage push button or radio
control.
Gears......................................16:1 worm gear reduction
Drive........................................Roller chain with two-piece trolley on
steel Tee-rail.
Length of travel........................Adjustable to 7 1/2 feet
Travel rate ..............................6 to 8 inches per second
Lamp.......................................On when door starts to travel, off 4 1/2
minutes after stop. Also separate
DIMENSIONS
Length (overall).......................128 inches
Headroom required.................2 inches
Hanging weight.......................32 pounds
LIGHT Switch.
Door linkage............................Adjustable door arm. Pull cord
trolley release.
4
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Adjustment
STEP 1
Adjust UP and DOWN Limits
LIMIT ADJUSTMENT settings regulate the points at which the
door will stop when moving up or down.
NOTE: Door STOPS in the UP direction if anything interferes
with door travel. Door REVERSES in the DOWN direction if
anything interferes with the door travel (including binding or
unbalanced doors).
Adjustment Label
PROCEDURE: To operate opener, press wall push button. Run
the opener through a COMPLETE TRAVEL CYCLE. Limi
adjustments are not necessary when the door opens and closes
completely and doesn't reverse unintentionally in the fully closed
position.
Left Side
Panel
Limit
Adjustment
Screws
The following chart outlines adjustment procedures. Run the opener through a COMPLETE TRAVEL CYCLE AFTER EACH
ADJUSTMENT. NOTE: REPEATED OPERATION OF THE OPENER DURING ADJUSTMENT PROCEDURES MAY CAUSE MOTOR
TO OVERHEAT AND SHUT OFF. SIMPLY WAIT 15 MINUTES AND TRY AGAIN. Read chart carefully before proceeding to Step 2. Use a
screwdriver to make limit adjustments.
LIMIT ADJUSTMENT CHART
IF DOOR DOES NOT OPEN COMPLETELY
BUT IT OPENS AT LEAST FIVE FEET
IF ONE-PIECE DOOR DOES NOT CLOSE COMPLETELY
Increase DOWN travel. Turn down limit adjustment screw
COUNTERCLOCKWISE One turn equals 2 inches of travel.
Increase UP travel. Turn the UP LIMIT adjustment screw
clockwise. One turn equals 2" of travel.
If door does not open at least 5 feet: adjust OPEN FORCE as
explained in Step 2.
IF OPENER REVERSES IN FULLY CLOSED POSITION
Decrease DOWN travel. Turn down limit adjustment screw
clockwise. One turn equals 2" of travel.
IF SECTIONAL DOOR DOES NOT CLOSE COMPLETELY
IF DOOR REVERSES WHEN CLOSING AND THERE
IS NO INTERFERENCE TO TRAVEL CYCLE
Increase DOWN travel. Turn down limit adjustment screw
counterclockwise. One turn equals 2" of travel.
If the door still will not close completely, the header bracket is
positioned too high. Repeat Step 1, page 7.
Test door for binding: Pull emergency release handle. Manually
open and close door. If door is binding, call a door serviceman. If
door is not binding or unbalanced, adjust CLOSE FORCE. See
Step 2.
17
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Adjust Force
STEP 2
DO NOT USE FORCE ADJUSTMENTS TO COMPENSATE FOR A BINDING OR STICKING GARAGE DOOR.
EXCESSIVE FORCE WILL INTERFERE WITH PROPER OPERATION OF SAFETY REVERSE SYSTEM OR DAMAGE
GARAGE DOOR.
Force Adjustment Controls are located on rear panel of opener.
FORCE ADJUSTMENT settings regulate amount of the power
required to open and close door.
Adjustment Force
Controls
NOTE: The door STOPS in the UP direction if anything
interferes with its travel. Door REVERSES in the DOWN
direction if anything interferes with its travel (including
binding or unbalanced doors).
If the force adjustments are set too light, door travel may be
interrupted by nuisance reversals in DOWN direction and stops in
UP direction. As weather conditions can affect the door movement,
occasional adjustment may be needed.
Adjsutment Label
Maximum force adjustment range is 260 degrees, about 3/4 of a
complete turn. Do not force controls beyond that point. Turn force
adjustment controls with a screwdriver.
FORCE ADJUSTMENT CHART
IF DOOR DOESN'T OPEN AT LEAST 5 FEET
TEST DOWN (CLOSE) FORCE
Increase UP (OPEN) FORCE by turning clockwise. Make 10
degree turn adjustments until door opens completely. Readjust UP
LIMIT if necessary. After each adjustment, run opener through a
complete travel cycle.
Grasp the door handle or door bottom when door is about halfway
through DOWN (CLOSE) TRAVEL. Door should reverse. If the
door is hard to hold or doesn't reverse, decrease DOWN (CLOSE)
FORCE by turning the control in a counterclockwise direction.
Make 10 degree turn adjustments until door reverses normally.
After each adjustment, run opener through a complete cycle.
IF DOOR REVERSES DURING DOWN (CLOSE) CYCLE
Increase DOWN (CLOSE) FORCE by turning control clockwise.
Make 10 degree turn adjustments until door completes close
cycle. After each adjustment, run the opener through a complete travel travel
PROCEED TO STEP 3
17
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Adjustment
Test Safety Reverse System
STEP 3
THE SAFETY REVERSE SYSTEM TEST IS IMPORTANT. GARAGE DOOR MUST REVERSE ON CONTACT WITH A
ONE INCH OBSTACLE PLACED ON THE FLOOR. FAILURE TO PROPERLY ADJUST OPENER MAY RESULT IN
SERIOUS PERSONAL INJURY FROM A CLOSING GARAGE DOOR. REPEAT TEST AT LEAST FOUR TIMES A YEAR
AND ADJUST AS NEEDED..
PROCEDURE: Place a 1-inch obstacle on the floor under the
garage door. Operate door in DOWN direction. The door must
reverse on the obstruction.
If a the door STOPS on the obstruction, it is not traveling far
enough in the DOWN direction. Increase the DOWN limit by
turning DOWN limit adjustment screw counterclockwise 1/4 turn.
REPEAT TEST.
NOTE: Make sure limit adjustments do not force the door
arm beyond a straight up and down position. See the
illustration on Page 13.
When the door reverses on the 1-inch obstacle, remove the
obstruction and run the openerthrough a complete travel cycle.
Door MUST NOT reverse in closed position. If it does, repeat
Adjustment Steps 1, 2 and 3.
REPEAT ADJUSTMENT STEP 3 AFTER:
• EACH ADJUSTMENT OF DOOR ARM LENGTH, CLOSE FORCE OR DOWN LIMIT.
• ANY REPAIR OR ADJUSTMENT OF GARAGE DOOR (INCLUDING SPRINGS AND HARDWARE).
• ANY REPAIR OR BUCKLING OF THE GARAGE FLOOR.
• ANY REPAIR OR ADJUSTMENT OF THE GARAGE DOOR OPENER.
(Optional)
STEP 4
Install the Protector System
The PROTECTOR SYSTEM
provides an ADDITIONAL
measure of safety against a small child being caught under a
garage door. It uses an invisible beam which, when broken by an
obstruction, causes a closing door to open and prevents an open
door from closing.
After the garage door opener has been completely installed and
adjusted, the PROTECTOR SYSTEM
accessory can be
installed. Instructions are included with this optional device.
18
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Radio Controls
F.C.C. rules prohibit adjustments to or modification of receiver and/or transmitter circuitry except for changing the code setting and replacing the
transmitter battery THERE ARE NO USER SERVICEABLE PARTS.
Manufactured under 1 or more of the following U.S. patents: RE29,525; 4,037,201; 4,750,118; 4,806,930
Your garage door opener receiver and transmitter have been set at the factory to a matching code. If you want to CHANGE your code or
purchase additional transmitter follow the instructions below. The code in any NEW transmitter must be set to match thecode in the original
transmitter.
MATCH/CHANGE THE CODE IN TRANSMITTER(S)
PROCEDURE: With visor clip off, remove screw in the original
and any new transmitter as illustrated in Figure 1. Carefully turn
cases over (push button sides up). Remove case tops as shown in
Figure 2. CAUTION: Be careful not to move circuit board
components.
Place transmitter circuit boards side by side as shown in Figure 3.
Set code switches in ALL transmitters to matching positions ( +, -,
or 0). Use a pen or screwdriver to slide the switches. If one
transmitter has 8 code switches, set code switch 9 toe center (0)
position in other transmitter.
Transmitter Circuit Board
Code Switches
SET RECEIVER TO MATCH TRANSMITTER(S) CODE
GARAGE DOOR OPENERS
WITH RECEIVER SMART CODE BUTTON
PROCEDURE:
1. Press the RECEIVER Smart Button on the back panel of the
TRANSMITTER
opener as shown. The adjacent indicator light will turn ON.
2. STAND AWAY FROM THE DOOR and press the transmitter
push button. The indicator light will turn OFF and the door will
move. Receiver and transmitter(s) codes now match. The
opener will operate when either the wall push button or the
transmitter push button is pressed.
NOTE: If the transmitter push button is not pressed within
30 seconds, the indicator light will turn OFF. In that case.
begin again at Step 1.
19
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Repair Parts
RAIL ASSEMBLY PARTS
KEY
NO.
PART
NO.
DESCRIPTION
1
2
3
4
5
6
7
8
9
1A995
Master link kit
Outer trolley
Inner trolley
Chain retainer bracket
Rail braces
Tee rail-end section (each)
Tee-rail-end section (each)
Cable Pulley and bracket assy.
Chain and cable
41B617
41B277
12A197
183B73
183B94
183B71
41B2616
41C2735
NOT SHOWN
41A2848
Rail assy. hardware kit (includes
hardware illustrated on page 5)
INSTALLATION PARTS LIST
KEY
NO.
PART
NO.
DESCRIPTION
Wall control assembly
9V battery
Transmitter case, cover & screw
Transmitter visor cap
Emergency rope & handle assy.
4-strand bell wire
Header bracket w/clevis pin and ring
fastener
1
2
3
4
5
6
7
41D2746
10A2
41A2849
29C121-2
41A2828
217A209
41A2829
8
9
10
11
12
12B374
12B380
178B35
178B34
12B350
Door bracket
Door bracket plate
Curved door arm section
Straight door arm section
Hanging brackets
NOT SHOWN
41A2815
Installation hardware bag (includes
hardware illustrated on page 5)
Owner’s Manual
114A1228
22
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Repair Parts
Chassis Assembly Parts List
KEY
NO.
PART
NO.
KEY
NO.
PART
NO.
DESCRIPTION
DESCRIPTION
1
2
31C290
41A2827
Sprocket cover
Gear and sprocket assy
Complete with:
Spring washer
Thrust washer
Retaining ring
Bearing plate
Roll pins (2)
Drive gear
Worm gear
10
11
12
41A3150
41D3058
41D2750
41D2751
41A2818
41D3452
41C3005
41C2726
41A3027
41A2826
41A2822
41A3519
Terminal block w/screws
Universal replacement motor
Cover w/all labels (550)
Cover w/all labels (350)
Helical gear & retainer w/grease
Limit switch assembly
RPM sensor assembly
Wire harness assy. w/plug
Motor bracket and bearing assy.
Shaft bearing kit
Interrupter cup assy.
Receiver logic board assy.
2 light operator
Receiver logic board assy.
1 light operator
Complete with:
Logic board
End panel w/all labels
Light socket (1)
End panel w/all labels
NOT SHOWN
Chassis assy. hardware kit
(includes screws not designated
by a number in illustration)
13
14
15
16
17
18
19
20
Helical gear w/retainer
Grease
Drive/worm gear kit w/grease
Roll (2)
3
41A2817
41A3519-1
4
5
6
7
8
41B2991
143D110
175B88
108D34
30B363
30B387
12A373
Line cord
Wind panel w/all labels
Light socket (each)
Lens (each)
Capacitor (550)
Capacitor (350)
Capacitor bracket
21
41A3052
41A2825
9
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23
CHAMBERLAIN SERVICE
IS ON CALL
HOW TO ORDER
REPAIR PARTS
Selling prices will be furnished on request or parts will be
shipped at prevailing prices and you will be billed accordingly.
OUR LARGE SERVICE ORGANIZATION
SPANS AMERICA
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION:
INSTALLATION AND SERVICE INFORMATION IS AS
NEAR AS YOUR TELEPHONE SIX DAYS A WEEK. SIMPLY
DIAL OUR TOLL FREE NUMBER:
• PART NUMBER
• PART NAME
• MODEL NUMBER
1-800-528-9131
ADDRESS ORDERS TO:
THE CHAMBERLAIN GROUP, INC.
Electronic Parts and Service Department
2106 N. Forbes Boulevard
HOURS: 7:00 a.m. TO 3:30 p.m.
(Mountain Std. Time)
MONDAY through SATURDAY
Tucson, Arizona 85745
FOR or professional installation, parts and service, contact
your local CHAMBERLAIN dealer. Look for him in the Yellow
Pages, or call our Service number for a list of dealers in your
area.
SERVICE INFORMATION
TOLL FREE NUMBER:
1-800-528-9131
CHAMBERLAIN GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY
The Chamberlain Group warrants to the first retail purchaser of this product that it will be tree from any defect in materials and/or
workmanship for a period of twelve full months from the date of purchase. The product must be used in complete accordance with
Chamberlain s instructions for installation, operation and care.
LIMITED WARRANTY ON MOTOR
Models 550 & 550-2M: The motor is warranteed to be free from any defect in materials and/or workmanship or a period of 60full months
(5 years) from the date of purchase.
Model 350: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 36 full months (3 years)
from the date of purchase.
This warranty does not cover non-defect damage, damage caused by unreasonable use (including abuse, failure to provide reasonable
and necessary maintenance, or any alterations to the product), labor charges for dismantling or re-installing of a repaired or replaced unit
or replacement batteries.
If, during the warranty period, the product appears as though it may be defective, CALL OUR TOLL FREE SERVICE NUMBER
BEFORE DISMANTLING IT (1-800-528-9131). If the product is then alleged to be defective, please send it prepaid and insured to our
Service Center to obtain warranty repair. You will be advised of shipping instructions when you call the number listed above.
Please be sure to include a brief description of the problem and a dated proof-of-purchase receipt with any product that is returned for
warranty repair.
Product under warranty, which upon receipt by Chamberlain is determined to be defective in materials and/or workmanship, will be
repaired or replaced (Chamberlain s option) at no cost to you and returned pre-paid. Defective parts will be repaired or replaced with new
or factory rebuilt parts at Chamberlains option.
THE DURATION OF IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS
LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY. SOME STATES MAY NOT ALLOW LIMITATIONS ON HOW
LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
All claims for consequential or incidental damages for breach of this warranty are excluded and in no event shall manufacturer s liability
for breach of warranty, negligence, strict liability or breach of contract exceed this cost of theproduct covered herein, but the purchaser is
entitled to the remedies expressly provided in this policy. Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation or exclusion may not apply to you.
No representative or person is authorized to assume for us any other liability in connection with the sale of this product. This warranty
gives you specific legal rights, and you may also have other rights which may vary from state to state.
© 1990, The Chamberlain Group, Inc.
All rights reserved
114A1228
Printed in Mexico
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ACCESSORIES FOR YOUR GARAGE DOOR OPENER
ORIGINAL
MODEL#
50
SUBSTITUTE
TO USE
750CB
DESCRIPTION
Single Function
Remote
53
54
753CB
756CB
41A3685
65LM
Three Button
Remote
Mini Multi
Function Remote
Wall Control
Panel (4 wire)
Keyless Entry
(Wired)
65LM
60
760CB
7702cb
Outside
Keyswitch
Quick Release
1702CB
Lock(used to open
the door with no other
entry, in case of
power failure)
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