Craftsman 139.53939D Manual Del Propietário página 5

Planning(Continued)
ONE-PIECEDOORINSTALLATIONS
• 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 12.
• Dependingon your door's construction, you may need
additional mounting hardware for the door bracket (Step 12).
Without a properly working safety reversal system, persons
(particularly small children) could be SERIOUSLYINJUREDor
KILLEDby a closing garage door.
• The gap between the bottom of the garage door and the floor
MUST NOT exceed 1/4" (6 mm). Otherwise, the safety
reversal system may NOTwork properly.
• The floor or the garage door MUST be repaired to eliminate
the gap.
ONE-PIECE DOORWITHOUTTRACK
Safety Reversing
Sensor
Header Wall
Rail
FINISHED CEILING
Suppod bracket
& fastening
ha_wareis required.
See page 16.
Wall-Mounted
Door Control
Access
Door
oi
Safety Reversing
Sensor
Gap between floor
and bottom of door must
not exceed 1/4" (6 mm).
Motor Unit
CLOSED POSITION
Trolley Stop Bolt
Belt Trolley
r_ _ I
iii:;:i ......
r uracKet _ Y I Emergency
__1 I-- Release
it liirght ii_e d _ Rope & Handle
_ Garage
_ Door
ONE-PIECE DOORWITH TRACK
Gap between floor
and bottom of door
Safety must not exceed
Reversing Sensor 1/4" (6 mm).
Access
Door
Header
Wall
Safety
Reversing Sensor
CLOSEDPOSITION
Trolley Stop Bolt Belt Trolley
Door
Bracket
Garage
Door
Rail
Straight Release
Door Rope &
Arm Handle