Model 6730, 6735, 6738, 6741 Mechanical Combination Lock
Troubleshooting/Dialing Diagnostics
This questionnaire will help you organize your approach to diag-
nosing and overcoming combination lock malfunctions. It also
provides an excellent record of your work, and is an invaluable
aid to S&G lab personnel when returned with any lock which
is still under warranty. Use of this checklist will help you work
more efficiently and help us make a better product.
visuaL insPection anD externaL Diagnostics
1. Does the dial or ring show any evidence of abuse?
If so, please describe:
2. Does the dial turn freely?
If not, please describe:
3. Is there any movement in the dial ring?
4. Does the dial exhibit excessive end play
(in & out movement)?
DiaLing Diagnostics
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 wheel picks up at: (if applicable)
3rd wheel picks up at:
2nd wheel picks up at:
1st wheel picks up at:
ProBaBLe Diagnosis
8. What is your diagnosis of the malfunction:
9. Original combination:
10. Date of last combination change:
11. Last combination change performed by:
12. Check the techniques you employed:
Dialing to compensate for shifted dial ring
Tap dial ring to free binding dial
Over-dialing for loose spline key
Vibration of safe door
Dialing procedures for stuck fly
Dialing procedures for use of wrong index during
combination change
Dialing procedures for wheel slippage
13. Opening combination:
14. Please note any other observations:
Yes No
Yes No
Yes No
Yes No
Light Moderate Well Defined None
21
© Copyright 2006, Sargent & Greenleaf, Inc.
To Next Page
Loading...