One-Piece Door Installations; One-Piece Door Without Track - Craftsman 139.53975SRT1 Manual Del Propietário

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 NOT exceed 1/4". 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
Header Wall
Slack in chain tension
is norn_al when
garage door is closed.
FINI_
Suppo_ bracket
& fastening
hardware isrequired.
See page 17.
Rail
Motor unit
I
Safety Reversing Sensor
WaIFmounted
D[_or Control
Access
Safety Reversing
Gap between floor Sensor
and bottom of door must not exceed 1/4".
ONE-PIECE DOOR WITH TRACK
CLOSED POSITION
Trolley Stop Bog Cable Trolley
D°°r Bracle__ _
_ Emergency
Release t Curved Rope & Handle
Door Door
leader Arm Arm
_aiI
Safety
Reversing Sensor
S
Floor must be {evel
across width of door
Access J
' ' Door
I
, , ©1
Reversing
Sensor
F//,
CLOSED POSITION
Troiley Stop Bolt Cable
Bracket
LD °°°
Door
Bracket Slraight
Door
Garage Arm
oor •
Chain
Rail
Emergency
Release
Rope &
Handle
5