Chamberlain 041D1739-1 Manual De Instrucciones página 2

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.
Light Lens
End Panel
End Panel
Logic Board
Wire Harnesses
Tabs
Quick-Connect Terminals
To insert or remove the
wires from the terminal,
push in the tab with a
screwdriver tip.
Motor Assembly
Travel Module
Wire Harness
Cover
2
BELT - Trolley Type A
1-1/4"
Inner Trolley
(3.18 cm)
CHAIN - Trolley Type A
1/4"
Mid Length of Rail
(6 mm)
Door Control
BELT - Trolley Type B
1-1/4"
(3.18 cm)
Outer Trolley
CHAIN - Trolley Type B
1/2"
(13 mm)
Outer Trolley
Safety Reversing
Sensors