DU40•20 Technical Manual EN 150624
© 2015 www.Lock4Safe.com
Page 3 of 4
9
Open with factory code "50":
Turn LEFT and pass “50” four-times and stop exactly on the opening
mark the fifth time. Turn RIGHT until stop to open the lock. The dial
stops around number 93 on the opening mark.
Note: Due to installation tolerances it is possible that the code may
have shifted up to two numbers up or down. This shifting is normal
and will be eliminated once the code is re-set. If the lock does not
open on “50 “, try to open at “48” then “49”, “51” or “52”. Due to
these tolerances it is important to re-set the code after installation.
5x
10
Place 9V alkaline battery (Duracell ™) into the bottom compartment
of the input and close the compartment door.
To verify the electronics, turn the dial to the LEFT and stop at
number 60.
With DU4020: Enter factory code 1-2-3-4-5-6
With DU4050: Press 1
turn the dial within 3 seconds to the right to retract the bolt
11
Remove the dial (carefully) by pushing the shaft out from the lock
side. If you do not work with the mounting tool LS-1526, tighten the
screws now. (hand tight)
If spindle and cable share the same hole, use the plastic tube over
the spindle only to separate it from the cable.
12
Remove the spacer. With the lock in OPEN-position (bolt retracted)
hold the dial in a way that approximately “93” is lined up with the
dial’s opening mark and push it with light pressure into the lock.
The dial and shaft cannot be pulled back out as they are held by a
starlock washer.
13
Place the small plastic plug into the shaft hole at the rear of the lock
to retain the square shaft. Push all the way in with a screwdriver.
Set a new Factory Code (example: 10 20 30 40)
With door open, turn the bolt work and lock to locked position.
On the CHANGING INDEX dial the code at which the lock opened in Step 9.
Example: If the lock opens at “49”.
5 x LEFT until “49” stops exactly at the Changing Index
1.
Carefully insert change key on the inside of the safe door.
Slightly wiggle if necessary.
2.
Turn change key as shown clockwise to the stop
(approx. 90 deg.)
Never apply excessive force
If change key cannot be inserted or turned, the correct code has not been dialed to
the Changing Index on the dial. Take out the key and dial the valid code again
.
Change Keys
If installers use the
same change key to
set up several locks,
it is important to
inspect the change
key regular basis.
If the change key is
bend or shows signs
of wear it needs to
be replaced.
Otherwise the new
code will not be set
exactly as dialed.
