5
1a. Wall Mounting
The operator should generally be installed below the door
shaft, and as close to the door as possible. The optimum
distance between the door
shaft and operator drive shaft is
between 12” -
15”. Refer to Figure 3.
OPERATOR MOUNTING
IMPORTANT: The shelf or bracket must provide adequate
support, prevent play between operator and door shaft,
and permit operator to be fastened securely and with the
drive shaft parallel to the door shaft.
1b. Bracket or Shelf Mounting
The operator may be mounted either above or below the
door shaft. The optimum distance between the door shaft
and operator drive shaft is between 12” - 15”. Refer to
Figure 4.
1c. Place door sprocket on the door shaft. Do not insert the
key at this time.
2. Wrap drive chain around door sprocket and join roller
chain ends together with master link.
3.
Raise operator to approximate mounting position and
position chain over operator sprocket.
4.
Raise or lower operator until the chain is slightly taut
(not tight). Make sure the operator output shaft is paral-
lel to door shaft and sprockets are aligned. When in
position, secure the operator to wall or mounting brack-
et.
5.
Align sprockets and secure, (see Figure 5).
FIGURE 4
FIGURE 3
Before your operator is installed, be sure the door has been properly aligned and is working smoothly. The operator may
be wall mounted or mounted on a bracket or shelf. If necessary, refer to the operator preparations on page 3. Refer to the
illustration and instructions below that suits your application.
Typical Left Hand
Wall Mounted Operator
Be sure door
sprocket is properly
aligned with drive
before securing to
the shaft.
Chain Keeper
FIGURE 5
Remove the three cotter pins from the disconnect shaft.
Do not discard the pins. Slide the disconnect shaft out of
the support bracket. The release lever will now be free
inside the motor frame. Remove the release lever and
sash chain from the motor frame. Slide the disconnect
hub, compression spring, and flatwasher from the end of
the gear reducer shaft. Remove the disconnect support
bracket by first removing the the two gear reducer hous-
ing screws. Replace the screws in the gear reducer and
firmly tighten.
2. Re-assemble Disconnect Assembly
Remove the two screws on the opposite side of the gear
reducer and mount the disconnect support bracket with
the notched side facing the motor. For the remainder of
the installation, follow the steps outlined above in reverse
order, referring to the illustration as necessary.
