LiftMaster 8550WLB Owners Manual - Page 8

Assembly

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Assembly 1 Attach the Rail to the Garage Door Opener MODELS 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, WLED, WLED-267, 85503, AND 85503-267 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. Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, WLED-267, 85503, and 85503-267: 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, WLED-267, 85503, and 85503-267: 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. HARDWARE 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) Lock Nut (Mounted in the garage door opener) Model 8557W (1) Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, and WLED-267 Washered Bolt Hex Screw 5/16"-18x1/2" #8x3/8" Hex Screw #8x3/8" (Packed with the sprocket cover) Model 8557W Washered Bolt Lock Nut 5/16"-18x1/2" Hex Screw #8x3/8" 8

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8
Assembly
1 Attach the Rail to the Garage Door Opener
MODELS 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, WLED, WLED-267,
85503, AND 85503-267
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.
Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, WLED-267, 85503, and
85503-267:
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, WLED-267, 85503, and
85503-267:
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.
Models 8550W, 8550WL, 8550WLB, 8550WLB-267, WLED, and WLED-267
Model 8557W
Washered Bolt
5/16"-18x1/2"
Hex Screw
#8x3/8"
Lock Nut
Hex Screw
#8x3/8"
(Packed with the
sprocket cover)
Lock Nut
(Mounted in the
garage door opener)
Model 8557W (1)
Washered Bolt
5/16"-18x1/2"
Hex Screw
#8x3/8"
HARDWARE
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)