Chamberlain 3800P - Manual (Page 8)

Staples Lock Screw
1/4-20 x 1/2" (2)
HARDWARE SHOWN ACTUAL SIZE
Approx. 3" (7.6 cm)
Lock Template
Roller
Garage
Door Track
TOP
DRILL 5/16"
DRILL 3/4"
DRILL 5/16" 132A2505
TOP
DRILL 5/16"
DRILL 3/4"
DRILL 5/16" 132A2505
Figure 1
INSTALLATION STEP 3
Install Power Door Lock
The lock is used to prevent the garage door from
being manually opened once the door is fully closed.
1. Select a door roller to mount the lock above. Check for
clearance. If possible select a roller on the same side of
the door as the motor unit. The second roller up from
the bottom is ideal in most installations.
2. Ensure rail surface is clean and adhere lock template
with bottom edge just above the highest point on the
roller (Figure 1).
3. Drill holes as marked on the template.
4. Fasten power door lock to the outside of the garage
door track with hardware provided.
5. Run bell wire up wall to motor unit. Use insulated
staples to secure wire in several places.
6. Plug connector into the motor unit (Figure 2).
NOTE: Lock must be mounted within 10' of the power
head.
NOTIC
E
Overhand
Knot
Emergency
Release Handle
Overhand
Knot
Rope
Motor Unit
Emergency
Release Cable
To prevent possible SERIOUS INJURY or DEATH from a falling
garage door:
• If possible, use emergency release handle to disengage door
ONLY when garage door is CLOSED. Weak or broken springs
or unbalanced door could result in an open door falling
rapidly and/or unexpectedly.
• NEVER use emergency release handle unless garage
doorway is clear of persons and obstructions.
INSTALLATION STEP 2
Attach the Emergency Release Rope
and Handle
• Thread one end of the rope through the hole in the top
of the red handle so “NOTICE” reads right side up as
shown. Secure with an overhand knot at least 1"
(2.5 cm) from the end of the rope to prevent slipping.
• Thread the other end of the rope through the loop in the
emergency release cable.
• Adjust rope length so the handle is no higher than 6'
(1.83 m) above the floor. Secure with an overhand knot.
NOTE: If it is necessary to cut the rope, heat seal the cut
end with a match or lighter to prevent unraveling.
Figure 2
8