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The Locksmith Guide™ to:
Interchangeable Core Cylinder Service

Sample Pages

The Locksmith Guide™ to: Interchangeable Core Cylinder Service

Here are a few pages from the Book. This should give you a sample of the text.


The Table of Contents shows the Chapter Titles for the information contained in this book. 
     SFIC is Small Format Interchangeable Core
     LFIC is Large Format Interchangeable Core
Chapters cover Cylinder Design, Master Key System Design and Development, and Specific Service instructions and techniques.

Scan & Print Extras are full page "Blank Forms," which compliment the text and allow the reader to apply the methods and techniques found in each Chapter.
Page seven finds an illustration of the Best™ style I/C (SFIC) Cylinder. Here, the cylinder is being described in detail, to give the reader an understanding of the component parts of a cylinder and their interaction. 
This is a Pinning Matrix for the Best™ style SFIC cylinder. Every "pinning combination" used in this system can be found on this chart. When properly completed, there will be no need to "figure out" each Pin-Stack, when combinating a cylinder into this system.
     The blank "Matrix Chart" is repeated in the "Scan & Print" section of the book. Blank charts can be printed by the reader to service nearly any system. You are free to print as many charts as you need. They are, however, ©copyright protected. Print all you need, but do not publish or distribute them. 
This is an "Un-combinating Chart" for the Best™ A2 system. The chart organizes the pin lengths as you measure the various pin-stacks of a cylinder. The measurements are decoded, using the "pin-length" charts at the bottom of the page, to fill out the Pin-Stack graphic representations. With this information, The Control Key and TMK Key bittings are being found. We only had a Change Key and the cylinder. After completing this form we can "know with certainty," the bitting of the Control and TMK keys. 
     This form is repeated in the "Scan & Print" section. Print as many of these forms as you need. 
     "Un-combinating" forms are included for the Corbin® Master-Ring, Corbin Russwin® (Pre System 70 and System 70 conventions), Sargent and Schlage® cylinders. 
Every cylinder covered in the book will have a complete explanation of the various "pin-stacks," and how they operate with the Change, TMK and Control Keys. A thorough understanding of every pin, and its function in the pin stack is assured. 
     Here, we are studying the various pins required to service the Corbin Master-Ring cylinder. The "Name" and "Function" of each pin in the stack is determined by its position in the "Pin-Stack." There are "two" shear-lines" in this cylinder. Each has a function in the proper operation of the cylinder. 
The advantages of the Master-Ring cylinder are fullly explained in this chapter, along with the correct method of combinating the cylinder. The Corbin Master-Ring cylinder is the paramount "Large Master System" choice. It is also the father of all two shear-line cylinders that follow. 
The Corbin Russwin I/C (LFIC) cylinder is broken down, to identify and explain each component. These cylinders can be a "pleasure" to service, if you understand the system and know a few tricks for servicing them. Master Key System Development and keying techniques are covered in the text. 
The Sargent I/C (LFIC) cylinder is broken down, to identify and explain each component. These cylinders can be a "pleasure" to service, if you understand the system and know a few tricks for servicing them. Master Key System Development and keying techniques are covered in the text. "Forbidden" combinations are "called out" and explained, in detail. Keying System design "specific to the Sargent cylinder" is explained, so that you will be able to easily write a system for these cylinders.
     No "computer aided" system design software is needed. You only need the understanding contained in the Chapter on developing a Master system for the Sargent I/C cylinder.      Special Keying techniques are also covered in the Sargent Service Chapter.  
The Sargent I/C (LFIC) cylinder is cut-away, to explain the action of the pin stacks. Separate illustrations show the cylinder being "solved" by the Change Key, TMK Key, and Control key. Each explanation expands on the previous material, to give the reader a complete understanding of "why" the cylinder is "keyed" the way it is. 
Here, a Schlage I/C (LFIC) cylinder is "solved" by a zero bit Control Key. The key is laid on the drawing, to illustrate the action of the "key-tip" with the Control-Lug mechanism. 
     Illustrations in this book are accurately "scaled" from the cylinder. 
Service of the Schlage I/C (LFIC) cylinder is illustrated in clear "step-by-step" fashion. Pinning technique and professional methods are shown, with explanation of the "easiest and fastest" methods. If the "system" is carefully developed, servicing these cylinders can be fast and easy. Proper system design is described in Schlage Master Key System Development. 
The "Scan & Print Extras" section of the book contains all of the forms and keying charts found in the book. It allows the reader to reproduce "blank forms" to service all of the listed cylinders. This section of the book is included, so that you can "use" the information gained in the text to decode (Un-combinate) your cylinders and service them in a professional manner. 
The last portion of the Scan & Print section is in "full color." Here you will find Pinning cards, to use with your "Universal Pin Kit" and "Lid-Liners" for mini pin kits to service the various systems. The "Top Panel" illustrations are the reverse side of the Lid-Liners. They label the pin kits and give attention to special information necessary to properly combinate the indicated cylinders. 
Color coded blocks in the Lid-Liner identify the; Bottom Pins, Master Pins, Build-Up Pins and Top Pins. Manufacturers part numbers make ordering replacement pins easy. A "dedicated" pin kit is a luxury you can afford. Build the kits you use.