Chamberlain Security + 3850PC - Manuel (Page 7)

7
ASSEMBLY STEP 3
Attach the Belt Cap Retainer
• Position the belt cap retainer over the motor unit belt
pulley so the three holes in cap align with the three
holes in mounting plate. Attach 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
8x3/8" Hex Screws
Belt Cap Retainer
Mounting Plate
Motor Unit Belt Pulley
To avoid possible SERIOUS INJURY to fingers from moving
garage door opener:
• ALWAYS keep hand clear of belt pulley while operating
opener.
• Securely attach belt pulley cover BEFORE operating.
Hex Screw
#8x3/8"
HARDWARE SHOWN
ACTUAL SIZE
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNING WARNING
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 emergency release handle 6 feet (1.8 m) above floor.
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.
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.