Chamberlain Garage Door Opener 140GM User Manual

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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