Quantcast 8500 Series

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Maintenance  Recommendations.  Periodic servicing will extend the
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.
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
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
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.


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