Wayne-Dalton 3790 Garage Door Opener User Manual


 
4
Please Do Not Return This Product To The Store. Call Us Directly! Our Trained Technicians Will Answer Your Questions and/or Ship Any Parts You May Need.
You can reach us Toll Free at 1-888-827-3667 for Consumer Assistance or online at www.wayne-dalton.com
R3
End Bracket Removal
To remove the end brackets, follow the
steps below starting with the right hand
end bracket first:
a. Remove the upper lag screw from the
end bracket.
b. Attach a pair of locking pliers to the
upper portion of the end bracket and
hold the end bracket steady while
removing the lower lag screw.
If present, remove and save the #10
phillips head screw.
c. Holding the end bracket with the locking
pliers, carefully pry the end bracket from
the cable drum with a flat tip
screwdriver.
Repeat for left hand end bracket.
CAUTION: THE WINDING SHAFT MAY
ROTATE WHEN REMOVING THE END
BRACKET AND GEAR.
Center Bracket & Cable Drum
Removal
To remove the cable drum/center bracket,
follow the steps below:
a. Remove the two 1/4" lag screws from
the center bracket. Slide center bracket
to the right side of the torque tube.
Lift the right side of the torque tube up
and slide the cable drum and center
bracket off the end of the torque tube.
Discard the center bracket.
b. Drape the cable drum over the flagangle
by the counterbalance cable and re-align
the groove in the winding shaft with the
round notch in the flagangle.
Once aligned, lower the winding shaft
and torque tube onto the flagangle.
Repeat cable drum removal for left side.
After completing this step, continue with
Step R5 on page 5.
R4
Upper
Lag Screw
Lower
Lag Screw
#10 Phillips
Head
Screw
Flat Tip
Screwdriver
a b
c
a
b
1/4”
Lag Screws
Center
Bracket
Torque
Tube
Winding
Shaft
Round Notch
in Flagangle
Cable
Drum
Cable
Drum
Tools Needed:
Locking Pliers
Phillips Head
Screwdriver
Flat Tip
Screwdriver
Power Drill
7/16” Socket
Driver
Step Ladder
Tools Needed:
Power Drill
7/16" Socket
Driver
Step Ladder
End
Bracket
Locking
Pliers
Flagangle
Counterbalance
Cable