8500 Series

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Maintenance Recommendations. Periodic servicing will extend the

3.2.2.6

life of the lock and is essential for maintaining proper security. Each time

the combination is changed, inspect the lock for wear, metal filings, drilled

holes, cracks, or any other visual signs of attempts to defeat the lock by

forced entry techniques. The inspection process should entail removal of the

back cover of the lock, and visual examination of each wheel part, as well as

the cam and lever assembly, to make sure nothing is worn or damaged. If

lubrication is required, use molybdenum-disulfide (powder). NEVER use oil- or

petroleum-based lubricants on combination locks.

NOTE

For Sargent & Greenleaf Combination Locks, the

manufacturer recommends using GE-322L lubricant

manufactured by General Electric.

Each time the back cover is removed, the combination should be

reset. Remember to check the combination at least three times before locking

the container.

Any maintenance other than changing the combination and inspecting

the lock should be referred to a qualified locksmith.

8500 Series. These combination locks are Group 1 or 1R locks

3.2.3

designed for added protection against most modern methods of attack, while

also providing simplicity and ease of operation. Each model is available with

or without a metal tube that is secured to the lock case and simplifies

installation by accurately aligning the dial ring index with the lock. It

also protects the spindle from door insulation.

Some 8500 Series locks have a torque adjustment feature that applies

precise pressure to the wheel pack to guard against vibrating or `walking" the

wheels into alignment. The torque adjustment allows the dial torque to be

adjusted to individual touch. An 8500 Series lock is illustrated in Figures 9

and 10.

Opening Procedure. To open a Sargent & Greenleaf 8500 Series

3.2.3.1

Combination Lock, proceed as follows:

a) Turn the dial LEFT, stopping when the first number of the

combination is aligned with the OPENING index the fourth time.

b) Turn the dial RIGHT, stopping when the second number is aligned

the third time.

c) Turn the dial LEFT, stopping when the third number is aligned

the second time.

d) Turn the dial RIGHT to O.