LiftMaster 8550W 8550W Owners Manual - Page 7

Assembly, 1 Attach the Rail to the Garage Door Opener - with rail

Page 7 highlights

Assembly 1 Attach the Rail to the Garage Door Opener To avoid possible SERIOUS INJURY to finger from moving garage door opener: l ALWAYS keep hand clear of sprocket while operating opener. l Securely attach sprocket cover BEFORE operating. To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener. NOTE: ONLY use the bolts removed from the garage door opener. Place the garage door opener on the packing material to prevent scratching. 1. Remove the two bolts from the top of the garage door opener. 2. Align the rail and the styrofoam over the sprocket. Cut the tape from the rail, belt, and styrofoam. 3. Fasten the rail with the previously removed bolts. 4. Position the belt around the garage door opener sprocket. 5. Attach the sprocket cover over the garage door opener sprocket and attach with hex screws. HARDWARE Washered Bolt 5/16"-18x1/2" (Mounted in the garage door opener) Model 8550W Washered Bolt 5/16"-18x1/2" Hex Screw #8x3/8" (Packed with the sprocket cover) Hex Screw #8x3/8" Model 8557W Washered Bolt Lock Nut 5/16"-18x1/2" Hex Screw #8x3/8" 7

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7
Assembly
1 Attach the Rail to the Garage Door Opener
To avoid possible SERIOUS INJURY to finger from moving garage door opener:
l
ALWAYS keep hand clear of sprocket while operating opener.
l
Securely attach sprocket cover BEFORE operating.
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners
mounted in the top of the opener.
NOTE:
ONLY use the bolts removed from the garage door opener. Place the garage door
opener on the packing material to prevent scratching.
1.
Remove the two bolts from the top of the garage door opener.
2.
Align the rail and the styrofoam over the sprocket. Cut the tape from the rail, belt,
and styrofoam.
3.
Fasten the rail with the previously removed bolts.
4.
Position the belt around the garage door opener sprocket.
5.
Attach the sprocket cover over the garage door opener sprocket and attach with
hex screws.
Model 8550W
Model 8557W
Washered Bolt
5/16"-18x1/2"
Hex Screw
#8x3/8"
Lock Nut
Washered Bolt 5/16"-18x1/2"
(Mounted in the garage
door opener)
Hex Screw
#8x3/8"
(Packed with the
sprocket cover)
Washered Bolt
5/16"-18x1/2"
Hex Screw
#8x3/8"
HARDWARE