Chamberlain HD930EV User Manual download pdf (Page 7)

Assembly

STEP 2 Fasten the rail to the motor unit

To avoid SERIOUS damage to garage door opener,use ONLY those bolts/fastenersmounted in the

top of the opener.

1. Insert a 1/4"-20x1-3/4" bolt into the cover protection bolthole on the back end of the rail as

shown.Tighten securely with a 1/4"-20 lock nut. DO NOT overtighten.

2. Remove the bolts from the top of the motor unit.

3. Use the carton to supportthe front end ofthe rail.

4. Place the “U” bracket, flat side down onto the motor unitand align the bracketholes with the bolt

holes.

5. Fasten the “U” bracketwith the previously removed bolts; DO NOT use anypower tools. The use

of power tools may permanently damage the garage door opener.

HARDWARE

Bolt 1/4"-20x1-3/4"

Lock Nut 1/4"-20

“U” Bracket

Cover Protection

Bolt Hole

Bolt

1/4"-20x1-3/4"

Lock Nut 1/4"-20

Bolts (Mounted in the

garage door opener)

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Chamberlain HD930EV User Manual Page 7