OK DIGITAL LF20 Series User manual

LF20 Series Installation Guide

1
Supported door thickness: 15mm / 18mm / 20 mm
 Please refer to the installation hole drawing and the user guide for proper
installation.
Package included,
FRONT
LF21-PL LF-23HL
REAR
LR21
Models

2
BRACKET
(For single door)
BRACKET
(For double door)
BATTERY
COVER
M4 Bolts for
15-20mm doors
Screws Washer for LF23-HL, left-hand door AA Batteries
(Not included)
Door Thickness Bolt size
15mm Flat Head Bolt M4 X 16mm
18mm ~ 20mm Flat Head Bolt M4 X 20mm
25mm Flat Head Bolt M4 X 25mm
Parts i
ncluded
.
M4 bolt sizes & supported door thickness
.

3
Install
LF
2
1
-
PL
on
right
-
hand door.
1
Place the front unit through the lock
mounting hole of the door.
2
Connect the front cable to the pin-
connector of the rear.
3
Hold the front and rear units and tighten
with two bolts. (Torque: 3 of electric drill)
4
Insert 3 AA batteries.
5
Insert the upper hook of the battery
cover.
Press lower part of the battery cover
until it clicks into place.
6

4
8
Position the strike on the door frame and
tighten with two screws.
9
Test the lock after installation.
Align the strike with center of the dead-
latch.
7
Dead latch

5
1
Place the front unit through the lock
mounting hole of the door.
2
Turn the rear unit upside down and connect the
front cable to the pin-connector of the rear.
3
Hold the front and rear units and tighten
with two bolts. (Torque: 3 of electric drill)
4
Insert 3 AA batteries.
5
Insert the lower hook of the battery
cover.
Press upper part of the battery cover
until it clicks into place.
6
Install
LF
2
1
-
PL
on left hand door
.

6
8
Position the strike on the door frame and
tighten with two screws.
9
Test the lock after installation.
Align the strike with center of the dead-
latch.
7
Dead latch

7
Install LF21
-
PL on
d
ouble
door.
1
Place the front unit through the lock
mounting hole of the door.
2
Connect the front cable to the pin-
connector of the rear.
3
Hold the front and rear units and tighten
with two bolts. (Torque: 3 of electric drill)
4
Insert 3 AA batteries.
5
Insert the upper hook of the battery
cover.
Press lower part of the battery cover
until it clicks into place.
6

8
8
Position the strike on opposite door and
tighten with two screws.
.
9
Test the lock after installation.
Align the strike with center of the dead-
latch.
7
Dead latch

9
1
Place the front unit through the lock
mounting hole of the door.
2
Connect the front cable to the pin-
connector of the rear.
3
Hold the front and rear units and tighten
with two bolts. (Torque: 3 of electric drill)
4
Insert 3 AA batteries.
5
Insert the upper hook of the battery
cover.
Press lower part of the battery cover
until it clicks into place.
6
Install LF2
3
-
H
L on right
-
hand door.

10
9
Test the lock after installation.
8
Position the strike on the door frame and
tighten with two screws.
Align the strike with center of the dead-
latch.
7
Dead latch

11
2
Place the front unit through the lock
mounting hole of the door.
3
Turn the rear unit upside down and connect the
front cable to the pin-connector of the rear.
4
Hold the front and rear units and tighten
with a washer, two bolts and a screw.
(Torque: 3 of electric drill)
5
Insert 3 AA batteries.
6
Insert the lower hook of the battery
cover.
Install LF2
3
-
H
L on left hand door
.
1
Cut the protruding part of the rear with a
nipper.
Washer
Bolt
Screw
Bolt

12
9
Position the strike on the door frame and
tighten with two screws.
10
Test the lock after installation.
Press upper part of the battery cover
until it clicks into place.
7
Align the strike with center of the dead-
latch.
8
Dead latch

13
1
Place the front unit through the lock
mounting hole of the door.
2
Connect the front cable to the pin-
connector of the rear.
3
Hold the front and rear units and tighten
with two bolts. (Torque: 3 of electric drill)
4
Insert 3 AA batteries.
5
Insert the upper hook of the battery
cover.
Press the lower part of the battery cover
until it clicks into place.
6
Install LF2
3
-
H
L on
d
ouble
door.

14
8
Position the strike on opposite door and
tighten with two screws.
9
Test the lock after installation.
Align the strike with center of the dead-
latch.
7
Dead latch