Fasten The Rail To The Motor Unit And Install The Trolley - Chamberlain PD432DM 1/2 HP Owners Owner's Manual

ASSEMBLY STEP 2
Fasten the Rail to the Motor Unit and Install
the Trolley
NOTE: To aid in assembly and installation, replace the
foam packing around the motor unit. Remove it after
Installation Step 4.
1. Working on a level surface, align the rail assembly with
the motor unit, as shown.
2. Slip the coupling over the rail sprocket.
3. Slide the rail through the motor unit bracket until the
coupling fi ts securely over the motor unit sprocket.
4. Align the four bolt holes in the rail with those in the
motor unit bracket. Insert four 1/4"-20x7/16" hex bolts.
Tighten securely with a 3/8" socket wrench.
5. Disengage trolley by turning the release arm down.
Slide trolley onto and along the bottom of the rail until
it aligns with the rack. Turn release arm up. This will
join the rack and the trolley.
Rail Assembly
Release Arm
Hex Bolts
1/4"-20x7/16"
Coupling
Rail Sprocket
Foam Packaging
10
HARDWARE SHOWN ACTUAL SIZE
Hex Bolt 1/4"-20x7/16"
Motor Unit
Motor Unit
Bracket
Sprocket
Trolley
To the motor unit
Hex Bolts
1/4"-20x7/16"
Rack