Chamberlain PD460-2K Manual Do Utilizador

10

• Working on a level surface, align the rail assembly

with the motor unit, as shown.

• Slip the coupling over the rail sprocket.

• Slide the rail through the motor unit bracket until

the coupling fits securely over the motor unit
sprocket.

• Align the two bolt holes in the rail with those in the

motor unit bracket. Insert two 1/4"-20x5/8" hex
bolts and lock nuts. Tighten securely with a 7/16"
socket wrench.

Slide the trolley onto and along the bottom of the
rail until it snaps firmly in place. Be certain to
install it facing correctly: the trolley release
arm must be horizontal (lock position), with its
arrow pointed away from the motor unit.

Rail
Sprocket

Rail
Assembly

Trolley

Coupling

Motor Unit
Bracket

Lock Nuts
1/4"-20

Motor Unit
Sprocket

Foam Packaging

Hex Bolts
1/4"-20x5/8"

Release arm

Arrow must point 
toward garage door

Lock Nut
1/4"-20

Hex Bolt
1/4"-20x5/8"