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Pins not Setting
If you
scrub a lock and pins are not setting even when you
vary the
torque, then some pin has
false set and it is keeping the rest of the pins from
setting.
Consider a lock whose pins prefer to
set from
back to front. If the
backmost pin false sets
high or
low, then the plug cannot
rotate enough to
allow the other pins to
bind. It is hard to
recognize that a back pin has false set because the
springiness of the front pins makes it
hard to sense the
small give of a correctly set back pin. The main
symptom of this
situation is that the other pins will not set unless a very large
torque is applied.
When you encounter this
situation, release the
torque and start over by
concentrating on the back pins. Try a light
torque and
moderate pressure, or heavy torque and heavy pressure. Try to
feel for the
click that happens when a pin reaches the
sheer line and the plug
rotates
slightly. The click will be easier to feel if you use a
stiff torque wrench.