Genie M-4700 User Manual download pdf (Page 11)

■ Support opener head slightly off the floor.

■ Lift the opposite end of the rail up to the header bracket.

■ Position rail end-stop within the openings in the header

bracket. Insert header clevis pin ( 1/4” dia.) through rail

end-stop and header bracket, then attach cotter ring to

end of pin. (See Fig. 19A)

■ Once rail is attached to header bracket, support opener

powerhead on ladder, or use the assistance of another

person to support opener powerhead high enough so

door can open without hitting the rail.

A. SECTIONAL DOORS AND ONE-PIECE

DOORS WITH TRACK:

■ Open garage door to fully opened position, and place a

2x4 laid flat between the door and the rail. See Fig.20.

■ The 2x4 provides an easy method of ensuring the

correct mounting height of the opener.

B. ONE-PIECE DOORS WITHOUT TRACK:

■ Disconnect trolley by pulling down on emergency release

knob. Move trolley toward opener head.

■ Open door all the way so that it is parallel to the floor,

or slightly tilted toward the front of the garage. DOOR

SHOULD NOT BE TILTED TOWARD THE BACK OF GARAGE.

■ Position opener so that top of opener head is level with

top of opened door.

■ To check for correct mounting height, temporarily position

curved door arm as if connecting to door bracket. See Fig.

21. The long side of the arm should be parallel to the

floor when door is fully opened. Raise or lower power-

head so that arm will be parallel to floor.

■ Temporarily support head at this height, and prepare to

mount the opener to ceiling.

8-6. POSITION OPENER FOR MOUNTING

8-5. ATTACH RAIL TO HEADER BRACKET

Header Bracket

Rail End-Stop

Cotter Ring

1/4 x 3-1/4”

Clevis Pin

Rail

Fig. 19

Fig. 19A

Stepladder

2x4 Laid Flat

Door

Stepladder

Door

Fig. 20

Fig. 21

Opener Box

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 31 32

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Genie M-4700 User Manual Page 11

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