Sargent and Greenleaf 2740 Installation Instructions Manual

Model 2740 High Security Safe Lock

Installation Instructions

Mounting Considerations:

• This lock requires setup and adjustment with
the use of a setup module after installation. The
installation cannot be completed without the use
of a setup module. Setup modules are only issued
to S&G Certified Technicians who have sucessfully
completed specialized training on the 2740 lock.

• The Sargent & Greenleaf 2740 safe lock is
designed to use the same mounting screw
locations as common S&G mechanical and
electronic safe locks. In most instances it can
easily be mounted in place of these locks.

• The 2740 lock bolt is drilled and tapped to
accept an extension, if necessary. When attaching anything to the lock bolt,
make sure the end of the lock bolt (not the extension) can retract within 0.125 inch (3 mm) of being flush with the
end of the lock case.

• The 2740 accommodates right-hand, left-hand, vertical-up and vertical-down mounting applications. A single model
can be splined for any of these applications during the installation process.

• The dial ring diameter is approximately 3 ¾ inches, matching the diameter of the majority of S&G dial rings.

• Each 2740 lock and cover is configured to work together. If installing multiple locks, be very careful to avoid using
a cover with any lock other than the one with which it was shipped from S&G’s factory.

• Each 2740 lock requires one CR2450 coin cell battery and one CR123A lithium camera-type battery. Any time
one battery is replaced, the other should be replaced. Fresh batteries should be included with your lock. If not, be
careful to avoid using partially drained batteries.

• Modifications to the lock are not recommended and will void the manufacturer’s warranty.

• Personal information that can be directly related to a combination holder, such as a birth date, street number, or
phone number, should not be used in creating a lock code. Avoid combinations that could be easily guessed. Be
sure to change the combination from the factory setting 50-25-50 to one of your own choosing.

• The S&G 2740 is warranted against defects in materials and workmanship. This warranty applies only to locks
installed and set up by an S&G certified technician.

Sargent & Greenleaf, Inc.

A Wholly Owned Subsidiary of Stanley Security Solutions, Inc.
PO Box 930, Nicholasville, Kentucky 40340-0930 USA
Phone [phone]
Phone [phone]
FAX [phone]
FAX [phone]

Copyright© 2010, Sargent & Greenleaf

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Sargent & Greenleaf S.A.

9, chemin du Croset

1024 Ecublens, Switzerland

Phone [phone]

FAX [phone]

Document 630-745

Revised 7/22/2010

Installation Notes

The Sargent & Greenleaf model 2740 lock was designed to meet Federal Specification FF-L-2740A. It
can be retrofit to most security containers currently in service.

It is necessary to remove only the lock cover for installation. All other parts should remain in place as received from the

manufacturer.

Most safes and cabinets will already be prepped for lock installation. In the unlikely event that this is not
the case, locate exact position you want for the lock on the mounting plate. Using the template on the
last page of these instructions, drill and tap four holes for the attaching screws (
applications). Using the template, drill a hole for the spindle through the mounting plate. The minimum

3

spindle hole diameter is

⁄8" (9,5 mm). The optimum hole size is 1⁄2" (12,7 mm) diameter.

Wear the included static discharge wrist strap whenever you are about to remove the lock cover, or
whenever the cover is off of the lock body. The strap should be grounded to any bare metal of the safe
(container).

It is necessary to remove only the cover when attaching the lock. All other parts should remain in
place as received from the factory. When the cover is off of the lock, handle it carefully. It houses the
microprocessor and related circuitry. Do not touch the circuit board.

INSTALLATION INSTRUCTIONS

1

⁄4" X 20 or M6 for metric

1. Make sure the lock bolt is in the extended position (Figure 1). Carefully remove the lock cover.

CAUTION: Handle the cover by its edges. Do not touch the circuit board or pin towers. Any inadvertent contact
may introduce a static discharge which will damage the electronics. Static discharge may cause immediate
lock failure or delayed failure.

CAUTION: Do not attempt to remove the drive cam or the lever.

Figure 1

Lever

Drive Cam

Extended
Lock Bolt

Mounting Screw Locations

(indicated by white circles)

2. Mount the lock body in place with four

®

of Loctite 242

threadlocker to the threads of each mounting screw near the tip. No Loctite should be

1

X 20 attaching screws provided (Figure 1). Apply one drop

⁄

4

allowed to contaminate the inside of the lock case.

Opening Index

3. Attach the dial ring to the front of the safe or cabinet by loosely installing the
attaching screws to hold the dial ring in place for alignment. The dial ring
opening index should be at the 12 o’clock center position (Figure 3).

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Figure 3