Motor Kit for DC Garage Door Openers
MODELS 041D1739-1, 041D1624-1
AND 041D8006-1
INTRODUCTION
The images throughout these instructions are for reference and
your product may look different.
You will need:
• 1/4" magnetic nut driver
• Long-nosed pliers
• 5/16" long-shafted magnetic nut driver and socket
• Flathead screwdriver
INSTALLATION
1. Close the garage door. Unplug the garage door opener. Disconnect the battery (if applicable).
2. Disengage the door by pulling the emergency release handle. Loosen the chain/belt tension by loosening the nut.
3. For belt, remove the sprocket cover by removing the screws. Remove the belt from the sprocket.
For chain, remove the sprocket cover by squeezing the sides then pulling up. Remove the chain from the sprocket.
4. Use a flathead screwdriver to remove the C-clip from the motor shaft, then remove the sprocket from the motor shaft (set the
sprocket and C-clip aside to reinstall later).
To prevent possible SERIOUS INJURY or DEATH:
• Disconnect ALL electric and battery power BEFORE
performing ANY service or maintenance.
The garage door MUST be in the fully closed position during
installation.
ALWAYS wear protective gloves and eye protection when
changing the battery or working around the battery
compartment.
WARNING: This product can expose you to chemicals including
lead, which are known to the State of California to cause cancer
or birth defects or other reproductive harm. For more information
go to www.P65Warnings.ca.gov
BELT - Trolley Type A
Emergency
Release Handle
CHAIN - Trolley Type A
Emergency
Release Handle
Nut
Nut
BELT - Trolley Type B
Emergency
Release Handle
CHAIN - Trolley Type B
Emergency
Release Handle
Nut
BELT CHAIN
Sprocket
Cover
Sprocket
Cover
Nut
C-Clip
Sprocket
Battery
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INSTALLATION
5. Disassemble the garage door opener:
• Remove the light lens (if applicable).
• Disconnect the wires from quick-connect terminals on the logic board.
• Remove the end panel with the logic board.
• Disconnect all wire harnesses from the logic board.
• Remove the cover.
• Remove the motor assembly from the chassis.
• Remove the wire harness from the travel module on the old motor assembly. Discard the old motor assembly.
6. Reassemble the garage door opener:
• Secure the new motor assembly to the chassis. (If screws are provided with the new motor assembly, use them. If screws are
not provided, use the screws from the old motor assembly.)
• Attach the old travel module wire harness to the travel module on the new motor assembly.
• Reattach all the wire harnesses to the logic board (be sure the tabs on the wire harnesses are facing the end panel, not the logic
board).
• Reattach the cover, then the end panel.
• Reconnect the wires to the quick-connect terminals.
• Reattach the light lens.
• Reattach the sprocket and use the C-clip to hold the sprocket in place.
• Reattach the belt/chain to the sprocket.
• Reattach the sprocket cover.
7. Re-engage the door. NOTE: Make sure the inner trolley engages with the outer trolley.
8. Set the belt/chain tension:
• For chains with trolley type A, tighten the nut until the chain is a 1/4 inch (6 mm) above the base of the rail at the midpoint of
the rail.
• For chains with trolley type B, tighten the nut until the chain is a 1/2 inch (13 mm) above the base of the rail at the midpoint of
the rail.
• For belts with trolley type A or B, tighten the nut until the spring is as close to 1-1/4" (3.18 cm) as possible.
9. Connect power.
Proceed to Adjustments.
Quick-Connect Terminals
To insert or remove the
wires from the terminal,
push in the tab with a
screwdriver tip.
BELT - Trolley Type A BELT - Trolley Type B
Inner Trolley
1-1/4"
(3.18 cm)
1-1/4"
(3.18 cm)
Light Lens
Wire Harnesses
End Panel
End Panel
Tabs
Logic Board
Motor Assembly
Travel Module
Wire Harness
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Cover
Outer Trolley
CHAIN - Trolley Type A CHAIN - Trolley Type B
Mid Length of Rail
1/4"
(6 mm)
Door Control
Outer Trolley
Safety Reversing
Sensors
1/2"
(13 mm)
ADJUSTMENTS
PROGRAM THE TRAVEL
Your garage door opener is designed with electronic controls to
make setup and adjustments easy. The adjustments allow you
to program where the door will stop in the open (UP) and close
(DOWN) position. The electronic controls sense the amount of
force required to open and close the door. The force is adjusted
automatically when you program the travel and cannot be
changed.
Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
• Safety reversal system MUST be tested every month.
• After ANY adjustments are made, the safety reversal system
MUST be tested. Door MUST reverse on contact with 1-1/2"
(3.8 cm) high object (or 2x4 laid fl at) on fl oor.
PROGRAMMING BUTTONS
UP Button
Adjustment Button
DOWN Button
Setting the UP position:
1. Press and hold the Adjustment Button until the UP Button
begins to flash and/or a beep is heard.
2. Press and hold the UP Button until the door is in the desired
UP position.
NOTE: The UP and DOWN Buttons can be used to move the
door up and down as needed.
3. Once the door is in the desired UP position press and release
the Adjustment Button. The garage door opener lights will
flash twice and the DOWN Button will begin to flash.
Setting the DOWN position:
4. Press and hold the DOWN Button until the door is in the
desired DOWN position.
NOTE: The UP and DOWN Buttons can be used to move the
door up and down as needed.
5. Once the door is in the desired DOWN position press and
release the Adjustment Button. The garage door opener lights
will flash twice and the UP Button will begin to flash.
6. Press and release the UP Button. When the door travels to
the programmed UP position, the DOWN Button will begin to
flash.
7. Press and release the DOWN Button. The door will travel to
the programmed DOWN position. Programming is complete.
* If the garage door opener lights are flashing 5 times during the
steps for Program the Travel, the programming has timed out. If
the garage door opener lights are flashing 10 times during the
steps for Program the Travel, the safety reversing sensors are
misaligned or obstructed (refer to owner’s manual). When the
sensors are aligned and unobstructed, cycle the door through a
complete up and down cycle using the remote control or the UP
and DOWN buttons. Programming is complete. If you are unable
to operate the door up and down, repeat the steps for
Programming the Travel.
To prevent damage to vehicles, be sure fully open door
provides adequate clearance.
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ADJUSTMENTS
TEST THE SAFETY REVERSAL SYSTEM
1. With the door fully open, place a 1-1/2 inch (3.8 cm) board
(or a 2x4 laid flat) on the floor, centered under the garage
door.
2. Press the remote control push button to close the door. The
door MUST reverse when it makes contact with the board.
If the door stops and does not reverse on the obstruction, the
travel needs to be adjusted (refer to Program the Travel).
Repeat the test. When the door reverses upon contact with the
1-1/2 inch (3.8 cm) board, remove the board and open/close the
door 3 or 4 times to test the adjustment.
If the test continues to fail, call a trained door systems technician.
Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
• Safety reversal system MUST be tested every month.
• After ANY adjustments are made, the safety reversal system
MUST be tested. Door MUST reverse on contact with 1-1/2"
high (3.8 cm) object (or 2x4 laid fl at) on the fl oor.
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TEST THE PROTECTOR SYSTEM
®
1. Open the door. Place an obstruction in the path of the door.
2. Press the remote control push button to close the door. The
door will not move more than an inch (2.5 cm), and the
garage door opener lights will fl ash 10 times.
The garage door opener will not close from a remote control if the
LED in either safety reversing sensor is off (alerting you to the fact
that the sensor is misaligned or obstructed).
If the garage door opener closes the door when the safety
reversing sensor is obstructed (and the sensors are no more than
6 inches [15 cm] above the fl oor), call for a trained door systems
technician.
Without a properly installed safety reversing sensor, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
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