Assembly; Models 8550W, 8550Wl, 8550Wlb, 8550Wlb-267, 8557W, Wled, And Wled-267 - Chamberlain 8550W Manual

Assembly

1 Attach the Rail to the Garage Door Opener
Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, WLED, and WLED-267
To avoid possible SERIOUS INJURY to finger from moving garage door opener:
ALWAYS keep hand clear of sprocket while operating opener.
l
Securely attach sprocket cover BEFORE operating.
l
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. Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, and WLED-267: Remove the
two bolts from the top of the garage door opener.
Model 8557W: Remove bolt and lock nut 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. Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, and WLED-267: Fasten the
rail with the previously removed bolts.
Model 8557W: Fasten the rail with the previously removed washered bolt and lock nut.
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.
6. Align the rail and the styrofoam over the sprocket. Cut the tape from the rail, belt, and
styrofoam.
7. Position the belt around the garage door opener sprocket.
8. Attach the sprocket cover over the garage door opener sprocket and attach with hex screws.
Washered Bolt 5/16"-18x1/2"
(Mounted in the garage door opener)
Models 8550W, 8550WL, 8550WLB,
8550WLB-267, WLED, and WLED-267 (2)
Model 8557W (1)
Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, and WLED-267
Washered Bolt
5/16"-18x1/2"
Model 8557W
Washered Bolt
5/16"-18x1/2"
8
HARDWARE
Lock Nut Hex Screw
#8x3/8"
(Mounted in the
(Packed with the
garage door opener)
sprocket cover)
Model 8557W (1)
Hex Screw
#8x3/8"
Lock Nut
Hex Screw
#8x3/8"