Silca Crown D422143XA, Руководство по эксплуатации, Страница: 22 / 29

CROWN Operating manual - English
18 Copyright Silca 2001
H
EIGHT CHANGES
The machine gauging requires (as shown in fig. 13) a distance “X” between the top surface of the wedge
(H) and the rotation axis of the key in the device, and a 4,1mm (0.167 in.) radius corresponding to a key,
inside diameter of 8,2 mm (0.334 in.) and corresponding to the zero on the setting plate (I).
However, it may happen that a key has an inside diameter larger (ex.: CHICAGO MAS. 8,65 mm) or
smaller (ex.:FORT MAS. 7,62 mm); than the optional one. In this case, proceed as follow:
1) loosen the knob (M).
2) rotate the screw (G) clockwise or counter clockwise as required, bearing in mind that each complete
turn of the screw corresponds to a 0,1 mm (0.004 in.) change in height.
3) when the necessary change has been effected, lock the knob again (M).
4) proceed in making two cuts opposite to each other and check the diameter without taking out the
key, being sure it is equal to the original key diameter.
Important: for normal use the machine has to set to zero so that it goes back to its basic
gauging point 0, corresponding to a key of an inside diameter of 8,2 mm (0.334 in.).
Fig. 13
WARNING
The pin of a cylinder are divided into normal, oversized (MASTER), and with steps; as shown on fig. 14,
to distinguish the different cuts, we use the indicated denomination.
In order for the key to work easily in the cylinder, we suggest you use a blank approximately 0,1 mm
smaller in diameter than the original. This small difference will cause no problems in operation and will
help to avoid errors in centering.
Fig. 14
K K1
4,1
=
Radius
8,2
=
Inside diameter
Basic gauging
H
I
G
X
M
T 10
1
2
3
4
5
6
7
A
B
1
2
3
4
5
6
7
pin with
step
cut with step
(cut within a cut)
normal
pin
normal
cut
oversized
pin
correspondence
correspondence
KEY CYLINDER
oversized
cut