ASSEMBLY STEP 1
Attach the Collar to the Motor Unit
To avoid installation difficulties, do not run
the door operator until instructed to do so.
• Loosen the collar screws.
• Attach collar to either the left or the right side
of the motor unit. Ensure that the collar is
seated all the way on motor shaft until stop is
reached (Figure 1).
• Position the collar so that the screws are
facing up (accessible when attached to the
torsion bar).
• Tighten both sides of collar screws equally to
secure collar to the motor unit (16Nm-19Nm .
of torque)
(Figure 2).
NOTE:
For most installations the screws should
be facing up for easy access. Do not tighten set
screws until indicated.
6
Collar Screw
Collar Screw
Set Screw
Collar Screw
Collar Screw
Set Screw
ASSEMBLY STEP 2
Attach Mounting Bracket to Motor Unit
• Loosely attach slotted side of mounting
bracket to the same side of the motor unit as
the collar, using
self-threading screws provided.
NOTE:
Do not tighten until instructed.
Illustrations shown are for left side installation.
Socket Wrench
Figure 1
RIGHT
WRONG
Figure 2
Screw
#10-32
HARDWARE SHOWN ACTUAL SIZE
To prevent possible SERIOUS INJURY or
DEATH, the collar MUST be properly
tightened. The door may not reverse correctly
or limits may be lost due to collar slip.
Alternate Mounting Kit (NOT SUPPLIED):
This kit allows model CG3800 to be
mounted below the torsion bar in the
case where the torsion bar is not
round or the normal mounting area
is obstructed.
CG480
Left hand
installation
Right hand
installation
