Planning - Craftsman 139.53985DM Owner's Manual

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 SERIOUSLYINJURED
or 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.
t
Safety Reversing Sensor
Header Wall
Rail
Slack in chain tension
is normal when garage
_-_ door is closed.
Wall-mounted
----------- Door Control
Access E_
Door
O
Safety Reversing
Sensor
Gap between floor
and bottom of door must not exceed 1/4" (6 mm).
I ONE-PIECE DOOR WITH TRACK
Motor Unit
CLOSED POSITION
Trolley Stop Bolt
Cable Trolley
r
Emergency
Release
Rope & Handle
Safety
Reversing Sensor
Reversing
Gap between floor Sensor
and bottom of door
must not exceed 1/4" (6 ram).
CLOSED POSITION
Trolley Stop Bolt Cable
J \Header Curved
Bracket Door Arm--_ / L_
ooooooooooo) j
/_ Door I
V_/-/i] " Bracket Straight
Door
Y/z'l--- Garage Arm
Y,/'_ Door
Chain
Rail
Emergency
Release
J Rope &
Handle