Craftsman 139.53918D Manual Del Propietário página 26

ALLONE-PIECEDOORS
1. Assemblethe DoorArm:
IMPORTANT:Thegroove on the straight door arm MUST face
away from the curved door arm (Figure 5).
• Fastenthe straight and curved door arm sections together to
the longest possible length (with a 2 or 3 hole overlap).
• Make sure the garage door is fully closed. Connect the
straight door arm section to the door bracket with the
5/16"x1-1/4" clevis pin.
• Secure with a ring fastener.
• Pull the emergency release handle, disconnecting the outer
trolley from the inner trolley by pulling straight down on the
emergency release handle and sliding the outer trolley back
toward the motor unit.
• Connect the curved door arm section to the trolley using the
5/16"x1-1/4" clevis pin and ring fastener.
NOTE:Adjusting the limits on the following page:
• Thetrofley will automatically connect. If not, review the
trolley lockout feature on page 32.
• Whensetting the up limit on the following page, the door
should not havea "backward" slant when fully open as
illustrated below. A slight backward slant will cause
unnecessary bucking and/or jerking operation as the door is
being opened or closed from the fully open position.
Door
Bracket
Clevis Pin
5/16"xl - 1/4"
CORRECT INCORRECT
__ Ring
Fastener
Straight
Arm
Bolts
5/16"-18x7/8"
Lock
Washers
5/16"
Nuts
5/16"-18
}u_ed
DoorArm
Figure 6
Inner Trolley
I _ Emergency Release Handle
Closed
I Door
Inner Trolley
Outer Trolley
Open Door
Backward Slant
(Incorrect)
26