Awarning – Craftsman 139.53920D User Manual
Page 5
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Planning fContinued)
ONE-PIECE DOOR INSTALLATIONS
• Generally, a one-piece door does not require
reinforcement. If your door is iightweight, refer (o
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).
AWARNING
Without a properly working safety reversal system,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
• The gap between the bottom of the garage door and
the floor MUST NOT exceed 1/4" (8 mm) Otherwise,
the safety reversal system may not work properly.
• The floor or the garage door MUST be repaired to
etimioate the gap