Doit 4500DI-2DM 1/2 HP Owner'S Manual Download Page 6

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Your garage door opener is packaged in one carton which
contains the motor unit and all parts illustrated below.
Accessories will depend on the model purchased. If
anything is missing, carefully check the packing material.

Hardware for assembly and installation is shown on the
next page. Save the carton and packing material until
installation and adjustment is complete.

Carton Inventory

Lighted Door Control Button

SECURITY

✚

Single-Button
Remote Control

4500DIDM (1)
4500DI-2DM (2)

Idler Pulley

Chain Spreader

Door Bracket

Header Bracket

Motor Unit with a Light Lens

Trolley

Chain and Cable in
Dispensing Carton

2-Conductor Bell Wire
White & White/Red

Rail Front
(Header)
Section

“U” Bracket

Hanging Brackets

Curved Door
Arm Section

Straight Door
Arm Section

Safety Labels

and

Literature

The Protector System

(2) Safety Reversing Sensors
(1 Sending Eye and 1 Reversing Eye)
with 2-Conductor White & White/Black
Bell Wire attached

Safety Reversing
Sensor Bracket (2)

Rail
Center/Back
Sections

Summary of Contents for 4500DI-2DM 1/2 HP

Page 1: ...erials carefully Fasten the manual near the garage door after installation The door WILL NOT CLOSE unless the Protector System is connected and properly aligned Periodic checks of the opener are required to ensure safe operation The model number label is located on the front panel of your opener Made exclusively for Do It Best Corp Fort Wayne Indiana ...

Page 2: ...nd install the trolley 8 Fasten the rail to the motor unit and install the idler pulley 9 Install the chain cable 10 Tighten the chain 11 Installation 11 27 Installation safety instructions 11 Determine the header bracket location 12 Install the header bracket 13 Attach the rail to the header bracket 14 Position the opener 15 Hang the opener 16 Install the door control 17 Install the light 18 Atta...

Page 3: ...nt Preparing your garage door Before you begin Disable locks Remove any ropes connected to garage door Complete the following test to make sure your garage door is balanced and is not sticking or binding 1 Lift the door about halfway as shown Release the door If balanced it should stay in place supported entirely by its springs 2 Raise and lower the door to see if there is any binding or sticking ...

Page 4: ... the door must not exceed 1 4 6 mm Otherwise the safety reversal system may not work properly See Adjustment Step 3 Floor or door should be repaired SECTIONAL DOOR INSTALLATIONS Do you have a steel aluminum fiberglass or glass panel door If so horizontal and vertical reinforcement is required Installation Step 11 The opener should be installed above the center of the door If there is a torsion spr...

Page 5: ...loor or the garage door MUST be repaired to eliminate the gap ONE PIECE DOOR WITHOUT TRACK Header Wall Rail Gap between ﬂoor and bottom of door must not exceed 1 4 6 mm Safety Reversing Sensor Safety Reversing Sensor Access Door FINISHED CEILING Support bracket fastening hardware is required Motor unit Wall mounted Door Control ONE PIECE DOOR WITH TRACK Gap between ﬂoor and bottom of door must not...

Page 6: ... Lighted Door Control Button SECURITY Single Button Remote Control 4500DIDM 1 4500DI 2DM 2 Idler Pulley Chain Spreader Door Bracket Header Bracket Motor Unit with a Light Lens Trolley Chain and Cable in Dispensing Carton 2 Conductor Bell Wire White White Red Rail Front Header Section U Bracket Hanging Brackets Curved Door Arm Section Straight Door Arm Section Safety Labels and Literature The Prote...

Page 7: ... 1 4 14x5 8 2 Screw 6ABx1 2 Drywall Anchors 2 Screw 6 32x1 2 Handle Rope Clevis Pin 5 16 x1 Clevis Pin 5 16 x1 1 2 Clevis Pin 5 16 x1 1 4 Bolt 1 4 20x1 3 4 Lock Washer 3 8 Nut 3 8 Lock Nut 1 4 20 Master Link 2 Trolley Threaded Shaft Idler Bolt Hardware Inventory Separate all hardware and group as shown below for the assembly and installation procedures ASSEMBLY HARDWARE INSTALLATION HARDWARE ...

Page 8: ...he larger ones Tabs along the side will lock into place To prevent INJURY from pinching keep hands and fingers away from the joints while assembling the rail 3 Place the motor unit on packing material to protect the cover and rest the back end of the rail on top For convenience put a support under the front end of the rail 4 As a temporary stop insert a screwdriver into the hole 10 25 cm from the ...

Page 9: ... 4 2 Remove the tape from the idler pulley The inside center should be pre greased If dry regrease to ensure proper operation 3 Place the idler pulley into the window as shown 4 Insert the idler bolt from the top through the rail and pulley Tighten with a 3 8 lock washer and nut underneath the rail until the lock washer is compressed 5 Rotate the pulley to be sure it spins freely 6 Locate the rail...

Page 10: ...ley slot Push master link cap over pins and past pin notches Slide clip on spring over cap and onto pin notches until both pins are securely locked in place 3 With the trolley against the screwdriver dispense the remainder of the cable chain along the rail toward the motor unit into the slot on the chain spreader around the sprocket onto the chain spreader and continuing to the trolley assembly Th...

Page 11: ...nced and lubricated garage door An improperly balanced door may NOT reverse when required and could result in SEVERE INJURY or DEATH 3 ALL repairs to cables spring assemblies and other hardware MUST be made by a trained door systems technician BEFORE installing opener 4 Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to avoid entanglement 5 Install garage d...

Page 12: ...for the top edge of the door NOTE If the total number of inches exceeds the height available in your garage use the maximum height possible or refer to page 13 for ceiling installation 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 DO NOT install header bracket...

Page 13: ...TION 1 Extend the vertical centerline onto the ceiling as shown 2 Center the bracket on the vertical mark no more than 6 15 cm from the wall Make sure the arrow is pointing away from the wall The bracket can be mounted flush against the ceiling when clearance is minimal 3 Mark the side holes Drill 3 16 pilot holes and fasten bracket securely to a structural support with the hardware provided Heade...

Page 14: ... Have someone hold the opener securely on a temporary support to allow the rail to clear the spring 2 Position the rail bracket against the header bracket 3 Align the bracket holes and join with a clevis pin 5 16 x1 1 2 as shown 4 Insert a ring fastener to secure Header Wall Header Bracket Idler Pulley Header Bracket Mounting Hole Garage Door Temporary Support HARDWARE SHOWN ACTUAL SIZE Clevis Pin...

Page 15: ...venient for setting an ideal door to rail distance 1 Raise the opener onto a stepladder You will need help at this point if the ladder is not tall enough 2 Open the door all the way and place a 2x4 laid flat on the top section beneath the rail 3 If the top section or panel hits the trolley when you raise the door pull down on the trolley release arm to disconnect inner and outer sections Slide the...

Page 16: ...in line with the header bracket if the bracket is not centered above the door 7 Remove the 2x4 Operate the door manually If the door hits the rail raise the header bracket NOTE DO NOT connect power to opener at this time To avoid possible SERIOUS INJURY from a falling garage door opener fasten it SECURELY to structural supports of the garage Concrete anchors MUST be used if installing ANY brackets...

Page 17: ...rovided 3 Run the bell wire up the wall and across the ceiling to the opener Use insulated staples to secure the wire in several places Be careful not to pierce the wire with a staple creating a short or open circuit 4 Receiver terminals and the antenna are located on the back panel of the motor unit Position the antenna wire as shown NOTE When connecting multiple door controls to the opener twist...

Page 18: ...unt the emergency release within reach but at least 6 feet 1 83 m above the floor avoiding contact with vehicles to prevent accidental release and secure with a knot NOTE If it is necessary to cut the emergency release rope seal the cut end with a match or lighter to prevent unraveling Ensure the emergency release rope and handle are above the top of all vehicles to avoid entanglement To prevent p...

Page 19: ...rd 3 Connect the black line wire to the screw on the brass terminal the white neutral wire to the screw on the silver terminal and the ground wire to the green ground screw The opener must be grounded 4 Reinstall the cover To avoid installation difficulties do not run the opener at this time To prevent possible SERIOUS INJURY or DEATH from electrocution or fire Be sure power is NOT connected to th...

Page 20: ...are designed to clip onto the track of sectional garage doors without additional hardware Be sure power is NOT connected to the garage door opener BEFORE installing the safety reversing sensor To prevent SERIOUS INJURY or DEATH from a closing garage door Correctly connect and align the safety reversing sensor This required safety device MUST NOT be disabled Install the safety reversing sensor so b...

Page 21: ...tach brackets to wall with lag screws not provided 5 If using extension brackets or wood blocks adjust right and left assemblies to the same distance out from the mounting surface Make sure all door hardware obstructions are cleared Floor installation Figure 4 1 Use wood blocks or extension brackets see Accessories to elevate sensor brackets so the lenses will be no higher than 6 15 cm above the f...

Page 22: ...follow the instructions below 1 Cut the end of the safety reversing sensor wire making sure there is enough wire to reach the pre installed wires from the wall Figure 7 2 Separate the safety reversing sensor wires and strip 7 16 11 mm of insulation from each end Choose two of the pre installed wires and strip 7 16 11 mm of insulation from each end Make sure that you choose the same color pre insta...

Page 23: ...Incorrect wiring between sensors and opener A broken wire 2 If the sending eye indicator light glows steadily but the receiving eye indicator light doesn t Check alignment Check for an open wire to the receiving eye 3 If the receiving eye indicator light is dim realign either sensor NOTE When the invisible beam path is obstructed or misaligned while the door is closing the door will reverse If the...

Page 24: ...depending on your door s construction Metal or light weight doors using a vertical angle iron brace between the door panel support and the door bracket Drill 3 16 fastening holes Secure the door bracket using the two 1 4 14x5 8 self threading screws Figure 2A Alternately use two 5 16 bolts lock washers and nuts not provided Figure 2B Metal insulated or light weight factory reinforced doors Drill 3...

Page 25: ...the door if required for your installation Refer to the dotted line optional placement drawing HARDWARE SHOWN ACTUAL SIZE Self Threading Screw 1 4 14x5 8 WOOD DOOR METAL DOOR Finished Ceiling HORIZONTAL AND VERTICAL REINFORCEMENT IS NEEDED FOR LIGHTWEIGHT GARAGE DOORS FIBERGLASS ALUMINUM STEEL DOORS WITH GLASS PANEL ETC NOT PROVIDED Self Threading Screw 1 4 14x5 8 Top of Door Inside Garage Top of ...

Page 26: ...oles in curved arm are above holes in straight arm disconnect straight arm Cut about 6 15 cm from the solid end Reconnect to trolley with cut end down as shown Bring arm sections together Find two pairs of holes that line up and join with bolts lock washers and nuts Pull the emergency release handle toward the opener at a 45 angle so that the trolley release arm is horizontal Proceed to Adjustment...

Page 27: ...r Control push button The trolley will travel to the fully closed position Figure 5 Figure 6 Manually close the door and lift the door arm to the trolley The arm should touch the trolley just ahead of the door arm connector hole Refer to the fully closed trolley door arm positions in the illustration If the arm is behind the connector hole adjust the limit further One full turn equals 2 5 cm of tr...

Page 28: ...rce as explained in Adjustment Step 2 If the door does not close completely Increase down travel Turn the DOWN limit adjustment screw counterclockwise One turn equals 2 5 cm of travel If door still won t close completely and the trolley bumps into the pulley bracket page 4 try lengthening the door arm page 26 and decreasing the down limit If the opener reverses in fully closed position Decrease do...

Page 29: ... by turning the control clockwise Make small adjustments until the door completes a close cycle After each adjustment run the opener through a complete travel cycle Do not increase the force beyond the minimum amount required to close the door 2 Test the UP open force Grasp the door bottom when the door is about halfway through UP open travel The door should stop If the door is hard to hold or doe...

Page 30: ...bstruction and run the opener through 3 or 4 complete travel cycles to test adjustment If the unit continues to fail the Safety Reverse Test call for a trained door systems technician IMPORTANT SAFETY CHECK Test the Safety Reverse System after Each adjustment of door arm length limits or force controls Any repair to or adjustment of the garage door including springs and hardware Any repair to or b...

Page 31: ...when power is restored after interruption when the opener is activated They will turn off automatically after 4 1 2 minutes Bulb size is A19 Bulb power is 100 watts maximum Security light feature Lights will also turn on when someone walks through the open garage door WARNING WARNING 1 READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS 2 ALWAYS keep remote controls out of reach of children NEVER permit...

Page 32: ... any adjustment of limits or force MAINTENANCE SCHEDULE Every Month Manually operate door If it is unbalanced or binding call a trained door systems technician Check to be sure door opens and closes fully Adjust limits and or force if necessary see pages 28 and 29 Repeat the safety reverse test Make any necessary adjustments see Adjustment Step 3 Two Times a Year Check chain tension Disconnect tro...

Page 33: ... limit settings is normal Weather conditions in particular can affect door travel Refer to Adjustment Step 1 Adjust the UP and DOWN Travel Limits Decrease down travel by turning down limit adjustment screw clockwise 5 My lights will not turn off when door is open The garage door opener is equipped with a security light feature This feature activates the light on when the safety reversing sensor be...

Page 34: ...or unit Momentarily short across red and white terminals with jumper wire If motor unit activates replace door control wires Symptom Sending indicator light glows steadily receiving indicator light is dim or ﬂashing Realign receiving eye sensor clean lens and secure brackets Verify door track is ﬁrmly secured to wall and does not move Symptom Motor has over heated the motor unit does not operate o...

Page 35: ... Control USING THE LEARN BUTTON 1 Press and release the learn button on the motor unit The learn indicator light will glow steadily for 30 seconds 2 Within 30 seconds press and hold the button on the hand held remote that you wish to operate your garage door 3 Release the button when the motor unit lights blink It has learned the code If light bulbs are not installed two clicks will be heard 3 But...

Page 36: ...r times 3 To set the number of hours this temporary PIN will work press the number of hours up to 255 then press OR 3 To set the number of times this temporary PIN will work press the number of times up to 255 then press The opener light will blink once when the temporary PIN has been learned Test by pressing the four buttons for the temporary PIN then press Enter The door should move If the tempo...

Page 37: ... clip 5 41A2828 Emergency release rope and handle assembly 6 41B4494 1 2 Conductor bell wire white and white red 7 41A5047 2 Header bracket with clevis pin fastener 8 41A5047 Door bracket with clevis pin fastener 9 178B35 Curved door arm section 10 178B34 Straight door arm section 11 12B776 Hanging bracket 12 41A5034 Safety reversing sensor kit receiving and sending eyes with 2 conductor bell wire...

Page 38: ...acket bearing assembly RPM sensor KEY PART NO NO DESCRIPTION 11 41A5525 14 Cover 12 41A2818 Limit switch drive retainer 13 41D3452 Limit switch assembly 14 41A2822 1 Interrupter cup assembly 15 41C4398A RPM sensor assembly 16 41AC050 1M Receiver logic board assembly Complete with Logic board and end panel 17 41C5497 High voltage wire harness 41C5498 Low voltage wire harness 18 41A5484 1 End panel ...

Page 39: ...to operate garage door opener from outside by entering a password on a specially designed keyboard Also can add a temporary password for visitors or service persons This temporary password can be limited to a programmable number of hours or entries 3 Button Mini Remote Control with SECURITY With key ring and fastening strip 956D 940DID 953DID 935CB Motion Detecting Control Panel Multi Function doo...

Page 40: ...itations on how long an implied warranty lasts so the above limitation may not apply to you THIS LIMITED WARRANTY DOES NOT COVER NON DEFECT DAMAGE DAMAGE CAUSED BY IMPROPER INSTALLATION OPERATION OR CARE INCLUDING BUT NOT LIMITED TO ABUSE MISUSE FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT LABOR CHARGES FOR REINSTALLING A REPAIRED ...

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