All One-Piece Doors; 3. Connectthe Door Arm To The Trolley - Craftsman 139.536481DM Manual Del Propietário

ALL ONE-PIECE DOORS
1. Assemblethe door arm, Figure 5:
• Fastenthe straight and curved door arm sections together to
the longest possible length (with a 2 or 3 hole overlap).
• With the door 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.
2. Adjustmentprocedures,Figure 6:
• On one-piece doors, before connecting the door arm to the
trolley, the travel limits must be adjusted. Limit adjust-ment
screws are located on the left side panel as shown on page
27. Follow adjustment procedures below.
• Open door adjustment:decrease UPtravel limit
- Turn the UP limit adjustment screw counter-clockwise
4 turns.
Press the Door Control push button. The trolley will travel to
the fully open position.
Manually raisethe door to the open position (parallel to the
floor), and lift the door arm to the trolley. The arm should
touch the trolley just in back of the door arm connector hole.
Refer to the fully open trolley/door arm positions in the
illustration. If the arm does not extend far enough, adjust the
limit further. Onefull turn equals 2" (5 cm) of trolley travel.
• Closed dooradjustment:decrease DOWNtravel limit
Turn the DOWNlimit adjustment screw clockwise
4 complete turns.
Press the Door Control push button. The trolley will travel to
the fully closed position.
Figure 6
Inner Trolley
Figu INCORRECT
Door Bracket
ing Fastener
Lock Nuts
Washers 5/16"-18
, \ I_fl
ClevisPin
\ III
5116"x1-1/4' ,_._'_" -'_J_ ¢_-_ "_)/ /!
Bolts __ CUoroVred
5/16"-18x7/8" Arm
Manually close the door and lift the door arm to the trolley.
The arm should touch the trolley just ahead of the door arm
connector hole. Refer to the fully closed trolley/door arm
positions in the illustration. If the arm is behind the
connector hole, adjust the limit further. One full turn equals
2" (5 cm) of trolley travel.
3. Connectthe door arm to the trolley:
• Close the door and join the curved arm to the connector hole
in the trolley with the remaining clevis pin. It may be
necessary to lift the door slightly to make the connection.
• Secure with a ring fastener.
• Run the opener through a complete travel cycle. If the door
has a slight "backward" slant in full open position as shown
in the illustration, decrease the UP limit until the door is
parallel to the floor.
NOTE: 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.
Inner Trolley
/
Open Door
26
_-Door with
Backward Slant (Incorrect)
€'_"'.,