Install The Sprocket Cover; Installation - Craftsman 139.3043 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.
HARDWARE SHOWN ACTUAL SIZE
(Packed with the sprocket cover)

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
floor.
6. Mount the emergency release within reach, but at least 6 feet
(1.83 m) above the floor and avoiding contact with vehicles
to avoid accidental release.
7. NEVER connect garage door opener to power source until
instructed to do so.
8. NEVER wear watches, rings or loose clothing while installing
or servicing opener. They could be caught in garage door or
opener mechanisms.
Hex Screw 8x3/8"
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.
WARNING
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 flat) on the floor.
13. To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect ALL electric and battery power
BEFORE performing ANY service or maintenance.
14. DO NOT enable the Timer-to-Close functionality if operating
either one-piece or swinging garage doors. To be enabled
ONLY when operating a sectional door.
11
Hex Screws
Sprocket