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FLY:

 a part which is 

contacted by the drive pin 
of an adjacent drive cam or 
wheel to impart motion to the 
wheel on which it rides; flys can be either fixed or movable. 

DRIVE CAM:

 a circular component, which 

is connected directly to the spindle; its drive 
pin transfers rotation to the wheels, and its 
gate is shaped to accept the lever nose. 

CONTACT POINTS:

 the 

numbers which come under 
the opening index when the 
nose of the lever contacts 
the sides of the gate in the 
drive cam; the left contact 
area is detected by turning 
the dial to the right, and the 
right contact area is  
determined by turning the 
dial to the left. 

S&G 8550 MP CAM:

 a drive cam fitted 

with a roller to push the lever/accelerator 
spring assembly onto a shelf, preventing 
lever/wheel contact. 

S&G 8400 MP CAM 

(SLIDE CAM):

 a drive cam 

which incorporates two slid-
ing components; in the closed 
position, the drive cam’s gate is 
concealed by one of the sliders. 

SPINDLE:

 a threaded rod, 

which connects the dial and 
drive cam. 

SPLINE KEY:

 a press-fit part which is 

inserted into the aligned spindle and cam 
spline keyways, effectively tying the spindle 
and drive cam together, making them one 
functional part.

INNER SPINDLE:

 a component of 

the S&G manipulation-proof series; it 
connects the “butterfly” knob with the 
device which actuates the cam slide. 

KNOB:

 component of the S&G 8400 

series combination locks which is 
connected with the inner spindle 
assembly; when turned, it actuates 
the cam slide. 

SPACING/ISOLATION WASHER:

 a thin 

spacer used between the wheels; its purpose is 
to isolate the wheels from each other. 

TENSION WASHER (SPRING):

 a spring 

washer used to apply pressure on the wheel 
pack (used in NTA locks).

RETAINING WASHER:

 a part which retains the wheel pack 

on the post; it can be wire-formed in a circle,  
or a “Spirolox” washer.

LEVER:

 serves to retract the bolt when 

proper combination has been dialed.
1.  Fence – a part of the lever that fits 

into wheel gates, permitting the lever 
nose to engage in the drive cam.

2.  Nose – a portion of lever body which 

contacts the drive cam. 

3.  Bushing – integral part of the lever formed to hold the lever 

spring in place and through which the lever screw holds the 
lever to the lock case. 

Model 6730, 6735, 6738, 6741 Mechanical Combination Lock

Combination Lock Glossary

SPLINE 

KEYWAY

STRAIGHT

THREADS

CAVITY IN DIAL TO

ACCEPT SPINDLE

NOSE

BUSHING

FENCE

7

© Copyright 2006, Sargent & Greenleaf, Inc.

Содержание Sargent and Greenleaf 6730

Страница 1: ...Sargent and Greenleaf Mechanical Safe Lock Guide...

Страница 2: ...track record of building first rate mechanical locks stretches over 150 years Since 1857 Sargent and Greenleaf has provided innovative security solu tions to financial institutions businesses and gov...

Страница 3: ...ntil the lock dial is snug in its ring and the drive cam is snug against the wheel post of the lock Mark the spot where the spindle first projects through the drive cam 8 Remove the spindle from the l...

Страница 4: ...be serviced by a qualified safe technician TO OPEN Your lock may be set on a factory shipping combination or it may be set on a true three number combination To open a lock set on a factory shipping...

Страница 5: ...to the step titled INSERT THE CHANGING TOOL If the changing tool does not go into the lock all the way substitute 41 for the factory shipping combination IF YOUR LOCK IS SET ON A TRUE THREE NUMBER COM...

Страница 6: ...me Once this is done attempt to re insert the changing tool into the lock Although it s acceptable to wiggle the tool slightly do not force it If the key will enter the mechanism to the point where th...

Страница 7: ...d with a key to prevent rotation OPENING INDEX the index on the dial ring used when dial ing the combination to open the lock commonly referred to as the crows foot CHANGING INDEX the index on the dia...

Страница 8: ...component containing both an inner and outer hub with meshing teeth when disengaged by a key the hubs relationship may be changed to a selected number by dialing KEY CHANGE WHEEL CONSTRUCTION a change...

Страница 9: ...tying the spindle and drive cam together making them one functional part INNER SPINDLE a component of the S G manipulation proof series it connects the butterfly knob with the device which actuates th...

Страница 10: ...prevents the bolt from retracting in the event the lock cover is separated from the lock THERMAL RELOCKING COMPONENT a small tab of soft low melting point material used to activate the relock trigger...

Страница 11: ...ing the fourth time the first number of the combination aligns with the opening index 2 Turn the dial to the right clockwise stopping the third time the second number of the combination aligns with th...

Страница 12: ...thness of dial movement and make further adjustments as necessary If a high spot or gap isn t apparent just tap lightly around the circumference of the ring until the dial rotates smoothly Shifted Dia...

Страница 13: ...eft it parked The contact should occur between 60 and 62 If it occurs ten to twelve numbers before 60 the 3rd wheel fly is stuck Continue dialing left to 40 Once again dial smoothly to 70 The contact...

Страница 14: ...as we turn the dialing procedures try some thing simple A sharp snapping dial action whenever direc tion is reversed will often shove the fly to its limit despite any burr or debris which may be in i...

Страница 15: ...combination of 20 60 40 a stuck fly on the 1 wheel can change to combination from 20 60 40 to 19 60 40 In other words the first number of the combination can be 10 11 12 13 14 15 16 17 18 or 19 Dial...

Страница 16: ...ETERMINED 64 60 4 34 40 6 6th Combination 1st NO IS NOT DETERMINED 65 60 5 35 40 5 7th Combination 1st NO IS NOT DETERMINED 66 60 6 36 40 4 8th Combination 1st NO IS NOT DETERMINED 67 60 7 37 40 3 9th...

Страница 17: ...to follow Three different forms are provided in this booklet one for each of the situations we have discussed Feel free to make copies for your own use 1st WHEEL FLY STUCK 2nd WHEEL FLY STUCK 3rd WHE...

Страница 18: ...half number or more before you can feel the contact through the dial you may well have a loose connection somewhere between the dial and the drive cam and the guilty part is usually the spline key Ou...

Страница 19: ...t hand constructed lock Current production locks are all with the exception of some vault locks true right hand mechanisms Extensive laboratory and field testing has shown the modern right hand constr...

Страница 20: ...wners and end users have been known to be less cautious however It is also a good idea to check your combination setting prowess by dialing the set numbers 1 2 number lower and 1 2 number higher than...

Страница 21: ...the fence to drop into the gates the vibration may move the wheels enough to allow the lock to open If the lever doesn t drop dial left directly to 64 then back to the contact area and oscillate The o...

Страница 22: ...tly to 64 then right to the contact area Keep adding 2 to your previous 3rd wheel number until the lock opens If the opening doesn t take place chances are very good the 2 wheel is also unlocked To re...

Страница 23: ...agnostics 5 Indicate the presence of the contact points 6 Left contact point location Right contact point location 7 Dial all wheels right to 60 then dial left to pick up wheels one at a time 4th whee...

Страница 24: ...ell 22 preferred Novagard Versilube G 322 L or Dow Corning Gn Metal Paste for all lubrication points inside all S G lock cases Aeroshell 22 is the cur rent factory lube Although not necessary a thin f...

Страница 25: ...mponents are specifically engineered to work together Use of non original parts can result in accelerated wear or lock failure and will void the manufacturer s warranty NOTE Cases and components which...

Страница 26: ...NOTES...

Страница 27: ......

Страница 28: ...Corporate Headquarters One Security Drive Nicholasville KY 40356 European Headquarters 9 chemin du Croset 1024 Ecublens Switzerland www sargentandgreenleaf com Document 630 672 Revised 12 15 2009 BC...

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