Install The Sprocket Cover; Installation; Assembly - Craftsman 139.18405D Owner's Manual

ASSEMBLY STEP 6

Install the Sprocket Cover

1. Position the sprocket cover over the sprocket as shown and
fasten to the mounting plate with 8x3/8" hex screws provided.
You have now finished assembling your garage door opener.
Please read the following warnings before proceeding to the
installation section.

INSTALLATION

IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND
INSTRUCTIONS.
2. Install garage door opener ONLY on properly balanced and
lubricated garage door. An improperly balanced door may
NOT reverse when required and could result in SEVERE
INJURY or DEATH.
3. ALL repairs to cables, spring assemblies and other hardware
MUST be made by a trained door systems technician
BEFORE installing opener.
4. Disable ALL locks and remove ALL ropes connected to
garage door BEFORE installing opener to avoid entanglement.
5. Install garage door opener 7 feet (2.1 m) or more above
fl oor.
6. Mount the emergency release within reach, but at least 6 feet
(1.8 m) above the fl oor and avoiding contact with vehicles to
avoid accidental release.
7. NEVER connect garage door opener to power source until
instructed to do so.
To avoid possible SERIOUS INJURY to fingers from moving
garage door opener:
• ALWAYS keep hand clear of sprocket while operating opener.
• Securely attach sprocket cover BEFORE operating.
8x3/8" Hex Screws
WARNING
8. NEVER wear watches, rings or loose clothing while
installing or servicing opener. They could be caught in
garage door or opener mechanisms.
9. Install wall-mounted garage door control:
• within sight of the garage door.
• out of reach of children at minimum height of
5 feet (1.5 m).
• away from ALL moving parts of the door.
10. Place entrapment warning label on wall next to garage door
control.
11. Place manual release/safety reverse test label in plain view
on inside of garage door.
12. Upon completion of installation, test safety reversal
system. Door MUST reverse on contact with a 1-1/2"
(3.8 cm) high object (or a 2x4 laid fl at) on the fl oor.
13. To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect ALL electric and battery power
BEFORE performing ANY service or maintenance.
11
Sprocket
Mounting
Plate