Sutter XenoWorks BRI, Руководство по эксплуатации, Страница: 19 / 28

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4. MAINTENANCE
4.1 Fitting New O-rings
Routine use will create wear on the three black O-rings located in the tip of the micropipette
holder chuck. Occasionally, the O-rings will need to be replaced. To do this, gently remove
the old O-rings with an appropriate tool (a bent paper clip, for example). Discard the old O-
rings and insert three new ones, taking care to ensure that they are flat against the back of
the chuck. The new O-rings can be pushed down inside the chuck by gently screwing the
chuck onto the knurled black aluminum pressure fitting. Take care not to damage the chuck
during this procedure.
4.2 Troubleshooting
Problem Cause Solution
1. The black O-rings in the
chuck are damaged.
Replace the O-rings.
2. There is an air bubble in the
hydraulic fluid.
Refill the system with
hydraulic fluid, taking care not
to introduce air bubbles.
There is poor control by the
injector of the material in the
micropipette.
3. The syringe plunger clamp
or barrel clamp is not tight. Tighten the appropriate clamp
screws
When drawing hydraulic fluid
into the syringe (without
tubing attached), air bubbles
are forming inside the syringe
plunger.
When filling the syringe for the
first time, a little air is trapped
inside the tip of the syringe,
which is drawn into the barrel
when the plunger is pulled
back.
Slowly draw hydraulic fluid
into the barrel, then
immediately and rapidly expel
it back into the container.
Repeat this until a full barrel
of hydraulic fluid can be drawn
without drawing air bubbles.
XENOWORKS ANALOG MICROINJECTOR OPERATION MANUAL – REV. 4