Installation; Operator Mounting - Chamberlain J Owner's Manual

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 preparation on page 5. Refer to the illustration and instructions
below that suits your application.

OPERATOR MOUNTING

1. Wall Mount: The operator should generally be installed below
the door shaft, and as close to the door as possible (Figure 1).
Bracket Shelf Mounting: The operator may be mounted either
above or below the door shaft (Figure 2).
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.
NOTE: The optimum distance between the door shaft and
operator drive shaft is between 12" - 15".
2. Place door sprocket on the door shaft. Do not insert the key
at this time.
3. Place drive sprocket on the appropriate side of the operator.
Do not insert the key at this time.
4. Wrap drive chain around door sprocket and join roller chain
ends together with master link.
5. Raise operator to approximate mounting position and position
chain over operator sprocket.
6. Raise or lower operator until the chain is taut (not tight).
Make sure the operator output shaft is parallel to door shaft
and sprockets are aligned. When in position, secure the
operator to wall or mounting bracket.
7. Align sprockets and secure (Figure 3).
8. Install Hand Chain (Models H and HJ only)
Place hand chain around hand chain wheel. Be sure to pass it
through both openings in the chain guide. Remove enough
links so chain hangs approximately 2 feet above the floor.
9. Mount Chain Keeper / Keyhole Bracket
Using suitable hardware mount the chain keeper
approximately 4 feet above the floor, near the free hanging
chain. Remove disconnect sash chain from bag and place the
end through the keyhole in the the chain keeper. Remove
excess links if necessary.
I N S T A L L A T I O N
Be sure door
sprocket is properly
aligned with drive
before securing to
the shaft.
Figure 3
Chain Keeper
(4" above floor)
Figure 1
Figure 2
6
Optimum Distance
12-15"
Typical Right Hand
Wall Mounted Operator
OPTIONAL
Mounting Bracket
P/N 08-9098
Optimum Distance
12-15"