©
Copyright 2014, Sargent & Greenleaf
Page 4
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nstructiOns
S&G
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Model 2740B
Electromechanical Safe Lock
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• The change key only plugs into the lock cover one way. When the
orientation is correct, the arrow on the end of the connector will
align with the arrow molded into the lock case.
• Between combination entries, the lock emits a series of quick beeps
as the dial is turned clockwise. You should stop turning clockwise
when the three beeps sound.
• If you begin a combination change and then decide not to proceed
with it, you can simply wait two minutes for the change function to
time out. At the end of the two minutes, one long beep will sound.
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This procedure is used for locks in single user mode or dual user
mode. Each user of a dual user lock changes his or her own code
independently, and the other code holder does not need to be present.
The lock gives you two minutes to complete the combination changing
process. If you take longer, the lock will reset, and you will have to
start again at the first step. Also, if you start dialing a combination,
then stop moving the dial for more than ten seconds, the lock will
reset, and you will have to start again at the first step.
The changing procedure is as follows:
1. Open the lock using the existing combination(s).
2. With the safe or container open, extend the lock bolt fully.
3. Insert the change key into the receptacle in the lock cover.
The lock will emit one quick beep when you begin to enter your old
combination. You now have two minutes to complete the following
steps.
4. Turn the dial left at least two complete revolutions, then stop
precisely on the first number of the OLD combination.
5. Turn the dial right (clockwise), stopping when the second
OLD combination number comes to the index.
6. Turn the dial left, stopping when the third OLD combination
number comes to the index. Then turn the dial right until you
hear three quick beeps from the lock.
7. Turn the dial left (counterclockwise) at least two complete
revolutions, then stop when the first number of the NEW
combination comes to the index.
8. Turn the dial right until the second NEW combination number
comes to the opening index.
9. Turn the dial left until the third NEW combination number
comes to the index. Then turn the dial right until you hear
three quick beeps from the lock.
The new combination is entered again for verification.
10. Turn the dial left (counterclockwise) at least two complete
revolutions, then stop when the first number of the NEW
combination comes to the index.
11. Turn the dial right (clockwise), stopping when the second
NEW combination number comes to the index.
12. Turn the dial left, stopping when the third NEW combination
number comes to the index. Now turn the dial right, listening
for five quick beeps to indicate a successful combination
change. If the lock is in single user mode, continue turning
the dial right to retract the lock bolt. If the lock is in dual
user mode, simply stop dialing.
13. Remove the change key from the lock.
Do not close the safe door or container drawer until you
have checked the new combination for proper operation at
least three times with the door or drawer OPEN.
If your lock is in single user mode and you accidentally close the
door with the change key in the lock, you can open it by going
through the entire combination change procedure, beginning with
step 4, using the last successfully set combination as the “OLD”
combination.
The original Model
2740 lock and the
2740B use the same
change key.
