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v4.2 Jan 2021| Page 8
2.2.1
Seating the needle
The needle must be properly seated in the cutter (figure 3). An improperly seated needle may be
ejected when the push wire is advanced, or the push wire may bend when trying to advance it through
the needle. Either of these symptoms suggest that the needle should be examined for proper seating.
Figure 3: Seating the needle
Needle Clamping Nut
Needle
Nylon Ball
Magnetizer
Magnet
Magnetizer Holder
Base
To seat the needle (assuming the needle clamping nut and needle are removed from the Multishot):
1.
Position the nylon ball approximately one third of the length down the needle from the tip (the
beveled end).
2.
Slide the base of the needle (the funnel shaped end) into the magnetizer until it meets resistance;
the needle will contact the cutter.
3.
While pushing gently, rotate the needle until you feel the funnel end of the needle slide into the
cutter.
4.
Now slide the needle clamping nut over the needle and thread it into the magnetizer; you may need
to push the nylon ball into the magnetizer a short distance with your fingernail to provide room for
the initial thread of the needle clamping nut.
5.
Finger-tighten the needle clamping nut and then use the one-eighth inch hex wrench to tighten the
nut until it is snug - approximately a quarter turn.
6.
Loosen the needle clamping nut a quarter turn and then re-tighten one quarter turn. Repeat the
loosen/re-tighten step a total of three to four times. This step ensures that the needle is properly
seated against the cutter without binding the cutter.
