Craftsman 139.53990DS Manual Del Propietário página 5

Planning (Continued)
ONE-PIECE DOOR INSTALLATIONS
• Generally, a one-piece door does not require
reinforcement. If your door is lightweight, refer to
the information relating to sectional doors in
Installation Step 11.
• Depending on your door's construction, you may
need additional mounting hardware for the door
bracket (Step 11).
Without a properly working safety reversal system,
persons (particularly small children) could be
SERIOUSLYINJUREDor KILLED by a closing garage
door.
• The gap between the bottom of the garage door and
the floor MUST NOTexceed 1/4" (6 mm). Otherwise,
the safety reversal system may not work properly.
• The floor or the garage door MUST be repaired to
eliminate the gap.
ONE-PIECE DOOR WITHOUT TRACK
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 16.
Header Wall
Rail
Safety Reversing Sensor
Slack in chain tension
is normal when garage
door is closed.
J
Access
Door
©
Safety Reversing
Sensor
Gap between floor
and bottom of door must not exceed 1/4" (6 mm).
Wall-mounted
Door Control
J
Motor Unit
CLOSED POSITION
Trolley Slo p Bolt Ca,ble Tro,lley
Bracket Rail
Ooor !
E 2*ncy
_)or _ _gn[ CUo?d Rope& Handle
_ Arm Arm
Door _ _
Garage
ONE-PIECE DOOR WITH TRACK
Reversing
Gap between floor Sensor
/ and bottom of door
Safety must not exceed 1/4" (6 ram).
Reversing Sensor
CLOSED POSITION
Trolley Stop Bolt Cable
__ ©
Header Curved _,_[_
Bracket ooorAr d /
ooooooooooo) J
_"'- Door
I
7///J Bracket Straight
Y///J Door
Y/.4-_ Garage Arm
_'//'_ Door r"
Chain
Rail
Emergency
Release
-- Rope &
Handle
"m