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Complies with UL 325 regulations effective January 1, 1993 ® ® Made exclusively for Do it Best Corp. Fort Wayne, Indiana GARAGE DOOR OPENER Model 4200DI 1/2 HP For Residential Use Only Owner’s Manual Please read this manual and the enclosed safety materials carefully! Fasten the manual near the garage door after installation.
TABLE OF CONTENTS Introduction Pages 2-7 Adjustment Pages 28-30 Safety symbol and signal word review......2 Adjust the travel limits ..........28 Preparing your garage door ........3 Adjust the force ............29 Tools needed ...............3 Test the safety reversal system.........30 Planning ..............4-5 Test the Protector System ®...
Preparing your garage door WARNING Before you begin: To prevent possible SERIOUS INJURY OR DEATH: • Disable locks. • ALWAYS call a trained door systems technician if • Remove any ropes connected to garage door. garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when •...
Planning • Do you have an access door in addition to the garage door? If not, Model 7702CB Outside Quick Identify the type and height of your garage door. Release is required. See Accessories page. Survey your garage area to see if any of the •...
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Planning (Continued) WARNING ONE-PIECE DOOR INSTALLATIONS Without a properly working safety reversal system, persons (particularly small children) could be • Generally, a one-piece door does not require SERIOUSLY INJURED or KILLED by a closing garage reinforcement. If your door is lightweight, refer to door.
Carton Inventory Your garage door opener is packaged in one carton foam. Hardware for assembly and installation is which contains the motor unit and the parts illustrated shown on the next page. Save the carton and below. Note that accessories will depend on the packing material until installation and adjustment is model purchased.
Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures. ASSEMBLY HARDWARE Hex Screw Carriage Bolts Washered Screw 5/16"-18x7/8" (3) 1/4"-20x1/2" (12) 5/16"-18 (5) 5/16"-18x1/2" (2) Master Link (2) (mounted in opener) Trolley Lock Nut Lock Washer Threaded Shaft (1) 1/4"-20x7/16"...
ASSEMBLY STEP 1 Assemble the T-Rail and Attach the Cable Pulley Bracket To avoid installation difficulties, do not run the HARDWARE garage door opener until instructed to do so. SHOWN ACTUAL SIZE 1. Align the four T-rail sections on a flat surface exactly as shown.
ASSEMBLY STEP 2 Inner Nut Lock 5/16" Washer Install the Trolley 5/16" Outer Nut Trolley • Attach the trolley threaded shaft to the trolley with 5/16" Threaded the lock washer and nuts as shown. Shaft • As a temporary stop, insert a screwdriver into the Trolley hole in the front end of the T-rail.
WARNING ASSEMBLY STEP 4 Install the Chain/Cable To avoid possible SERIOUS INJURY to fingers from and Attach the Sprocket Cover moving garage door opener: • ALWAYS keep hand clear of sprocket while operating INSTALLING THE CHAIN/CABLE opener. • Securely attach sprocket cover before operating. 1.
ASSEMBLY STEP 5 Tighten the Chain and Cable • Spin the inner nut and lock washer down the Lock trolley threaded shaft, away from the trolley. Inner Nut Washer Outer Nut • To tighten the chain, turn outer nut in the direction To Tighten Outer Nut shown.
INSTALLATION STEP 1 Determine the Header Bracket Finished Vertical Ceiling Centerline Location Header Structural Wall Supports WARNING To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling, otherwise garage door might not reverse when required.
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ONE-PIECE DOOR WITHOUT TRACK Unfinished 1. Close the door and mark the inside vertical Ceiling centerline of your garage door. Extend the line onto the header wall above door, as shown. Structural Supports Header Wall If headroom clearance is minimal, you can install Vertical Centerline the header bracket on the ceiling.
INSTALLATION STEP 2 Install the Header Bracket You can attach the header bracket either to the wall Wall Mounting Holes above the garage door, or to the ceiling. Follow the instructions which will work best for your particular CEILING MOUNT ONLY The nail hole is for requirements.
INSTALLATION STEP 3 Attach the T-Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way you’ll need help.
CAUTION INSTALLATION STEP 4 Position the Opener To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. Follow instructions which apply to your door type as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door- to-T-rail distance.
WARNING INSTALLATION STEP 5 Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural Two representative installations are shown. Yours supports of the garage. Concrete anchors MUST be used may be different. Hanging brackets should be angled if installing any brackets into masonry.
WARNING INSTALLATION STEP 6 Install the Door Control To prevent possible serious injury or death from electrocution: Locate the door control within sight of the door at a • Be sure power is not connected before installing door minimum height of 5 feet where small children control.
INSTALLATION STEP 7 Install the Light and Lens Lens Guide • Install a 75 watt maximum light bulb in the socket. The light will turn ON and remain lit for approximately 4-1/2 minutes when power is connected. Then the light will turn OFF. •...
WARNING INSTALLATION STEP 9 Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: To avoid installation difficulties, do not run the • Be sure power is not connected to the opener, and opener at this time. disconnect power to circuit BEFORE removing cover to To reduce the risk of electric shock, your garage door establish permanent wiring connection.
WARNING INSTALLATION STEP 10 Install The Protector System ® • Be sure power is not connected to the garage door opener BEFORE installing the safety reversing sensor. The safety reversing sensor must be connected • To prevent SERIOUS INJURY or DEATH from a closing and aligned correctly before the garage door garage door: opener will move in the down direction.
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INSTALLING THE BRACKETS Figure 1 DOOR TRACK MOUNT (RIGHT SIDE) Be sure power to the opener is disconnected. Install and align the brackets so the sensors will face each other across the garage door, with the beam no Door higher than 6" above the floor. They may be installed Track in one of three ways, as follows.
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MOUNTING AND WIRING THE SAFETY SENSORS Figure 4 • Slide a 1/4"-20x1/2" carriage bolt head into the slot Wing nut on each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension.
CAUTION INSTALLATION STEP 11 Fasten the Door Bracket To prevent damage to garage door, reinforce inside of door with angle iron both vertically and horizontally. Follow instructions which apply to your door type as illustrated below or on the following page. A horizontal reinforcement brace should be long Header enough to be secured to two or three vertical...
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ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • Center the door bracket on the top of the door, in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes.
INSTALLATION STEP 12 Inner Trolley Connect Door Arm to Trolley Outer Trolley Follow instructions which apply to your door type as illustrated below and on the following page. Clevis Pin SECTIONAL DOORS ONLY 5/16"x1" Ring • Make sure garage door is fully closed. Pull the Fastener emergency release handle to disconnect the outer trolley from the inner trolley.
ALL ONE-PIECE DOORS 1. Assemble the door arm: • Fasten the straight and curved door arm sections Door Ring Bracket Fastener together to the longest possible length (with a 2 Nuts or 3 hole overlap). Lock 5/16"-18 Washers • With the door closed, connect the straight door 5/16"...
WARNING ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Without a properly installed safety reversal system, Limits persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage Limit adjustment settings regulate the points at which door.
WARNING ADJUSTMENT STEP 2 Adjust the Force Without a properly installed safety reversal system, persons (particularly small children) could be Force adjustment controls are located on the back SERIOUSLY INJURED or KILLED by a closing garage panel of the motor unit. Force adjustment settings door.
WARNING ADJUSTMENT STEP 3 Test the Safety Reversal System Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage TEST door. • With the door fully open, place a one-inch board •...
OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of severe injury or death: 1. READ AND FOLLOW ALL WARNINGS AND 8. If one control (force or travel limits) is adjusted, the INSTRUCTIONS. other control may also need adjustment. 2. ALWAYS keep remote controls out of reach of children. 9.
Using the Wall-Mounted To Open the Door Manually Door Control WARNING Press the push button to open or close the door. Press again to reverse the door during • To prevent possible SERIOUS INJURY or DEATH from the closing cycle or to stop the door while it's a falling garage door: opening.
Having a Problem? Care of Your Opener 1. The opener doesn't operate from either the LIMIT AND FORCE ADJUSTMENTS: Door Control or the remote control: Weather conditions may cause • Does the opener have electric power? Plug a lamp some minor changes in door into the outlet.
Having a Problem? (Continued) 11. The door reverses for no apparent reason and opener lights blink for 5 seconds after 6. The garage door opens and closes by itself: reversing: • Be sure that all remote control push buttons are •...
PROGRAMMING Your garage door opener has already been programmed at the factory to operate with your hand-held remote control. The door will open and close when you press the push button. Below are instructions for programming your opener to operate with additional Security remote controls.
To Add or Change a Keyless Entry PIN NOTE: Your new Keyless Entry must be programmed to operate your garage door opener. USING THE “LEARN” BUTTON USING THE MULTI-FUNCTION DOOR CONTROL NOTE: This method requires two people if the Keyless 1.
Motor Unit Assembly Parts LIMIT SWITCH (Down) ASSEMBLY Contact Brown Wire Grey Wire Drive Gear Center Limit (Up) Yellow Contact Contact Wire PART PART DESCRIPTION DESCRIPTION 31D380 Sprocket cover 41D3058 Universal replacement motor & bracket assembly, Complete 41C4220A Gear and sprocket assembly, with: motor;...
ACCESSORIES SECURITY Single-Function 7702CB Outside Quick Release: 950DI Remote Control: Required for a garage with NO access door. Includes visor clip. Outside Key Lock: 953CB 760DI SECURITY Multi-Function Remote Control: Opens the garage door automatically from outside when Includes visor clip. remote control is not handy.
DO IT BEST CORP. SERVICE IS ON CALL OUR LARGE SERVICE ORGANIZATION SPANS AMERICA INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE SIX DAYS A WEEK SIMPLY DIAL OUR TOLL FREE NUMBER: 1-800-528-9131 HOURS: (Central Standard Time) 6:00 A.M. TO 7:00 P.M. - Monday through Friday 8:00 A.M.
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