Chamberlain 9950D User Manual download pdf (Page 9)

Assemble the Rail (Continued)

4. Beginning with the sprocket end, straighten the

two rail sections so that the screw rod is in a

straight line at the joint. (Avoid handling the joint,

which may have sharp edges.)

5. Carefully slide the pins at the top edge of the rail

into the openings on the adjacent rail. It is

essential that the rail assembly be on a level

surface to achieve proper alignment and to

avoid damage to the pins.

6. Insert two 1/4"-20x1-3/4" bolts through the center

holes of a brace, and place its open length against

the rail at the joint, aligning the holes as shown.

Position another brace on the opposite side of the

rail over the bolts, add 1/4"-20 lock nuts, and hand

tighten. Insert two additional bolts and hand

tighten.

7. Keeping the rail straight and on a level surface,

grasp the screw rods on each side of the

remaining joint and pivot into a straight line.

Repeat steps 5 and 6.

8. With a 7/16" wrench, tighten bolts until snug,

beginning with the center holes. Do not

overtighten.

Center Rail

Slide end rail

toward center rail

Rail

Support

Brace

Lock

Nuts

Center

Rail

Rail Pin

Alignment

Hole

Rail

Support

Brace

Rail Pin

Alignment

Hole

Alignment

Hole

Bolts

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

Bolts

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

Lock

Nuts

End

Rail

Door End

(Front)

Sprocket End

(Back)

Slide end rail

toward center rail

Lock Nut

1/4"-20

Bolt

1/4"-20x1-3/4" (8)

HARDWARE SHOWN ACTUAL SIZE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 39 40

Comments to this Manuals

No comments

Chamberlain 9950D User Manual Page 9

Comments to this Manuals

Related products and manuals for Garage Door Opener Chamberlain 9950D