Craftsman 139.5391 Garage Door Opener User 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 reversalsystem,
persons (particularly small children) could be
SERIOUSLYINJUREDor KILLEDbya closing garage
door.
The gap betweenthe bottom of the garagedoor and
the floor MUSTNOTexceed 1/4" (6 ram). Otherwise,
the safety reversalsystem may not work properly.
Thefloor or the garagedoor MUST be repairedto
eliminate the gap.
ONE-PIECE DOOR WITHOUT TRACK
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 16.
Safety Reversing Sensor
Rail
Slack in chain tension
is normal when garage
door is closed
Wail-mounted
Door Control
Safety Reversing
Gap between floor Sensor
and bottom of door must not exceed 1/4" (6 rnm).
Motor Unit
Trolley Stop Bolt
eader
/atl
CLOSED POSITION
cable Trolley
Emergency
Release
Rope & Handle
ONE-PIECE DOOR WITH TRACK
Safety
Reversing Sensor
Access I
Door I
()1
Revel*sing
Gap between floor Sensor
and bottom of door
must not exceed 1/4" (6 mm).
CLOSED POSITION
Trolley Stop Bolt Cable
Header Cu_'ed
Bracket Door Ar
_D °°°°°°°©°
Door I
Bracket Straight
Door
Garage Arm
oct
Chain
Rail
Eme_ency
Release
Rope &
Handle
5