5.4 Cutting short double bit keys
When it is necessary to cut very short keys that do not reach the stop (Y), observe the fi gure and proceed as
follows.
NOTE: Check that the carriage is locked in the fi xed horizontal position (cap. 5.1).
1) Loosen the clamp handles by a couple of turns so that the key can be fi tted.
2) Fit the key to be cut into the right-hand clamp, lock the handle without blocking the key.
3) Fit the original key into the left-hand clamp; lock the handle without blocking the key.
4) Raise the carriage and place the key bits against the tracer point and cutter (Fig. 30).
5) Use the handles to block the keys so that they are both perfectly aligned.
6) Proceed with cutting; if necessary round off the cuts by activating the carriage rocking movement.
7) Use the knob to raise the carriage and take the original key into contact with the tracer point to make the cuts.
8) Use the knob to pull back the carriage and move into position for another cut, then continue as for point 6.
9) When cutting is fi nished turn off switch (K) and remove the keys.
Fig. 30
Operating manual
FASTBIT
Copyright Silca 2014
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