Chamberlain HD920EV Garage Door Opener User Manual


 
7
Fasten the rail to the garage door opener
2
Tip: ONLY use the bolt removed from the
garage door opener.
Place the garage door opener on the packing
material to prevent scratching.
To avoid SERIOUS damage to garage
door opener, use ONLY those bolts/
fasteners mounted in the top of the
opener.
Mounted in the
garage door opener
HARDWARE
H2
Bolt 1/4"-20x1-3/4"
H4
Lock Nut 1/4"-20
2.1 Insert the bolt (H2) into the hole on the
back end of the rail as shown. Tighten
securely with the lock nut (H4). Do not
overtighten.
2.2 Remove the two bolts from the top of
the garage door opener.
2.3 Place the “U” bracket, fl at side down
onto the garage door opener and
align the bracket hole with the bolt
holes. Fasten the “U” bracket with the
previously removed bolts.
2.4 Prop up the end of the rail on the
carton to help align it with the
“U” bracket.
2.5 Slide the rail onto the “U” bracket, until
it reaches all the stops on the top and
sides of the “U” bracket.
H2
“U” Bracket
Bolts
Sprocket
H4
SLIDE RAIL TO
STOPS ON TOP AND
SIDES
Cover
Protection
Bolt Hole
Carton