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Pinning Formula
Fixed Core Component Cylinders
Fixed Core and
LFIC Chambers
Example
1, 2, 5 & 6
Top Pin (TP)
10 MINUS
Plug Total
Master Pin
(MP) =
Deepest Minus
Shallowest
Operating Cut
Plug Total (MP + BP)
Bottom
Pin (BP) =
Shallowest
Operating Cut
Instructions (Fixed Core and LFIC
Chambers 1,2, 5 & 6)
Bottom Pin = shallowest operating cut
Master Pin (if required) = Deepest minus
shallowest operating cut
(Plug Total = Bottom Pin + Master Pin)
Top Pin = 10 MINUS Plug Total
Note: "0" depth of cut only available for AP key
systems. Not used with AS or AHS.
Lost Ball/Wafer Construction Cylinder
1. In the construction lost wafer chamber use #5 cut for TMK and #6 cut for CMK
2. CMK cuts for the rest of the chambers are same as TMK cuts
3. "Donut" wafer is added in construction lost wafer chamber above bottom pin
Master Key
1
2
3
4
6
Change Key
3
4
5
2
0
Top Pin (TP)
7
6
5
6
4
Master Pin (MP)
2
2
2
2
6
Bottom Pin (BP)
1
2
3
2
0
Large Format Interchangable Core Cylinders
LFIC Control
Chambers 3 & 4
4
Top Pin (TP)
2
13 MINUS Plug
Total and
Build Up Pin
6
2
2
Build Up Pin (BU) =
Control Cut PLUS 6
MINUS Plug Total
Master Pin (MP) =
Deepest MINUS
Shallowest
Operating Cut
Bottom
Pin (BP) =
Shallowest
Operating Cut
Instructions (LFIC Control Chambers 3 & 4)
Bottom Pin = shallowest operating cut
Master Pin (if required) = Deepest minus
shallowest operating cut
(Plug Total = Bottom Pin + Master Pin)
Build Up Pin = Control Cut plus 6 minus Plug Total
Top Pin = 13 MINUS (PLUG TOTAL + BUILD UP PIN)
Note: "0" depth of cut only available for AP key systems.
Not used with AS or AHS.
7
Technical Manual
Example
Control Key
1
5
5
4
Master Key
1
5
2
6
Change Key
3
1
4
3
Top Pin (TP)
7
5
2
3
Build Up Pin (BU)
x
x
7
4
Master Pin (MP)
2
4
2
3
Bottom Pin (BP)
1
1
2
3
Plug Total (MP + BP)
3
2
3
2
1
5
7
5
x
x
2
3
1
2
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