Yale 4800LN Installation Instructions Manual

4800LN GRADE 2 INTERCONNECTED LOCKSET
INSTALLATION INSTRUCTIONS

Installation of this product requires that two 2 1/8" holes are spaced 4" apart center to center. See the hole template
sheet for accurate holelocations.

Connecting Screws

Interior Mechanism Housing

Deadbolt Latch

Installation Plate

Latch

Deadbolt

Tailpiece

Hub with Square Spindle

An ASSA ABLOY Group brand

P/N 80-9510-0056-010 Rev B

Tab

Deadbolt Fig. 1

Plastic Sleeve

BACKSET ADJUSTMENT

Firmly push and hold tab. Pull
deadbolt apart for 2-3/4"
backset and push together for
2-3/8" backset. Make sure tab

is held in through motion.

DEADBOLT LATCH
INSTALLATION

Insert latch through the hole in the
door edge and screw in place using
two 3/4" Phillips head screws. There
is a rectangular slide cam on the
back side part of the latch This is the
top of the latch. It should be up. DO

NOT INSTALL WITH THIS
POINTING DOWN.

LATCH INSTALLATION

Insert latch with plastic sleeve
through the hole in door edge and
screw in place using two 3/4" Phillips
head screws. Curved edge of latch
bolt should face in direction that door
closes.

Latchbolt Fig. 2

EXTERIOR LEVER
INSTALLATION

Exterior Assembly

There is a spring button on the tube
of the assembly. It should point
away from the door edge toward
the hinge side of the door. For
keyed entry levers, the release
button should point towards the
door’s edge. Insert the square
spindle of the exterior assembly
through the cam of the lower latch
and insert the connecting screws
loosely. Tighten these two screws.

Lever Assembly

Line up the hole in the neck of the
lever with the release button, then
slide the lever until the button
aligns with the hole. Using a key,
nail, or other pointed tool, depress
the button and push the lever onto
the tube until the button snaps into
the hole in the neck of the lever.

Assembly/Verification

Using a key from the exterior,
operate the deadbolt latch to insure
correct alignment. Operate the
exterior lever insuring smooth
operation. If the deadbolt or the
exterior lever does not operate

smoothly, adjust the installation
plate up and down or side to side to
find the correct position then
tighten all four connecting screws.

Interior Mechanism Housing

Reinstall the interior mechanism
housing on the installation plate
with the two self-thread screws
saved before. Once this operation
is done, the square

make sure

spindle for the interior mechanism
housing is inside the hub of the
lower latch and operates the latch.
Note that the thumbturn must be in
the vertical position, then slide the
lever over the bottom tube and
proceed same as with the exterior
assembly.

2

An ASSA ABLOY Group brand

P/N 80-9510-0056-010 Rev B