IMPORTANT NOTE: Before the operator is installed, be sure the door has been properly aligned and is working
smoothly. Although each installation will vary due to particular building characteristics, refer to the following general
procedures to install the operator.
MOUNT HEADER BRACKET
The trolley operator is generally mounted over the center
of the door. However, off center mounting may be
required due to interfering structures or location of door
stile / top section support. In such cases, the operator
may be mounted up to 24" off center on torsion spring
doors. Extension springs require center mounting.
1. Locate the center of the door and mark a line on the
wall directly above the door. Extend this line up the
wall.
2. Determine the highest point of door travel. Slowly raise
the door and observe the action of the top section.
When the top section reaches its highest point, use a
level and project a line from this point to the center line
the of the door.
MOUNT OPERATOR
1. Allowing the motor to rest on the floor, raise the front
end of the track assembly to the front header bracket
and fasten using the 3/8" dia. x 6.40" long pivot shaft
and cotterpins supplied.
3. Using the projected lines for location, mount a suitable
wood block or length of angle iron to the wall above the
door opening. Refer to the illustration below. This will
provide a mounting pad for the front header bracket of
the operator. If necessary reinforce the wall with
suitable mounting brackets to ensure adequate support
of mounting pad. Using suitable hardware, mount the
(U-shaped) front header bracket to the pad.
4" MIN.
Header Bracket Drill Pattern
2. Swing the operator to a horizontal position above the
guide rails and temporarily secure with a suitable rope,
chain, or support from the floor. Now open garage door
slowly, being careful not to dislodge the temporary
support. Using the door as a support, place a level
against the rail and shim the operator until it is
horizontal. Make sure that the operator is aligned with
the center line of the door.
operator to a horizontal position.
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