1. GCMS QP2010 Plus
Ion Source Removal,
Cleaning and Assembly
Bill Dougherty – July 19, 2010

2. QP-2010 Plus – Removal of ion source parts for cleaning
REMOVAL STEPS
Remove the 5 wire connectors from
both filaments and the repeller.
Remove both filament retaining nuts
(round nuts).
Remove Filaments.
Loosen 1.5mm MS Interface set screw.
Move spring loaded MS Interface
mating piece to the right away from
the ion box.
Insert the ion source removal tool.
Loosen both ion box retaining screws.
Remove ion box.
Remove 4 wire connectors for ion
source heater.
Remove spring loaded MS Interface
mating piece
Remove both lens stack retaining nuts
(six sided nuts).
CAREFULLY slide lens stack out and off
of posts. Be careful not to damage
wires on left. You must tilt lens stack
to clear the MS Interface on the right.
© 2010 SHIMADZU2

3. QP-2010 Plus – Removal of ion source parts for cleaning
Remove the lower
filament wire
connectors using
tweezers or small
needle nose pliers.
Release your grip from
the connector once it
is removed from the
pin, otherwise you
might unnecessarily
bend the wire.
Carefully push the
wire to the left
without holding the
crimp pin.
© 2010 SHIMADZU3

4. QP-2010 Plus – Removal of ion source parts for cleaning
Remove the
repeller wire
connector using
tweezers or small
needle nose pliers.
Release your grip from
the connector once it
is removed from the
pin, otherwise you
might unnecessarily
bend the wire.
Carefully push the
wire to the left
without holding the
crimp pin.
© 2010 SHIMADZU4

5. QP-2010 Plus – Removal of ion source parts for cleaning
Remove the upper
filament wire
connectors using
tweezers or small
needle nose pliers.
Release your grip from
the connector once it
is removed from the
pin, otherwise you
might unnecessarily
bend the wire.
Carefully push the
wire to the left
without holding the
crimp pin.
© 2010 SHIMADZU5

6. QP-2010 Plus – Removal of ion source parts for cleaning
Loosen and
remove the
upper and
lower filament
retaining nuts
(round nuts)
using a flat
blade
screwdriver.
Remove the
filament nuts
using your
fingertips or
tweezers.
© 2010 SHIMADZU6

7. QP-2010 Plus – Removal of ion source parts for cleaning
Remove the
upper and lower
filaments.
Carefully hold by
their ceramic
block and pull
straight out.
When removing,
place the filaments so
that you can
remember which is
from the #1 position
(upper) and which is
from the #2 position
(lower).
© 2010 SHIMADZU7

8. QP-2010 Plus – Removal of ion source parts for cleaning
Loosen the MS
Interface Allen
set screw with
the 1.5mm Allen
driver.
The set screw
loosens by
counterclockwise
rotation. Do not
unscrew enough for
the screw to fall out,
just enough to be
able to move the
spring loaded MS
Interface mating
piece to the right.
© 2010 SHIMADZU8

9. QP-2010 Plus – Removal of ion source parts for cleaning
With a small pair of
needle nose pliers,
grasp the plate
attached to the MS
Interface mating
piece. Slide the
piece to the right
and rotate the
plate all the way
downward so that
it is on the right
side of the lens
stack bracket,
holding the spring
loaded interface
piece to the right.
© 2010 SHIMADZU9

10. QP-2010 Plus – Removal of ion source parts for cleaning
Insert the removal
tool into the lower
right corner hole
in the ion box and
thread the tool
clockwise until it is
finger tight. This
will hold the
repeller assembly
together with the
ion box when it is
time to remove
them.
© 2010 SHIMADZU10

11. QP-2010 Plus – Removal of ion source parts for cleaning
With the removal tool
holding the ion box and
repeller assembly
together, loosen each of
the two captive screws
from the heater block
assembly bracket behind
the ion box. First the left
hand screw, and then
while holding the box in
place with the holder,
loosen the upper right
screw. The box will come
loose when loosening
the second screw so use
the removal tool to hold
the box in place until
you are ready to remove
it.
© 2010 SHIMADZU11

12. QP-2010 Plus – Removal of ion source parts for cleaning
Once both of the
captive screws are
all the way loose
then carefully pull
the ion box –
extractor assembly
straight out towards
you. The captive
screws do not come
all the way out of
the repeller
assembly, they just
unthread from the
heater block
assembly. Notice
them hanging out in
the picture.
© 2010 SHIMADZU12

13. QP-2010 Plus – Removal of ion source parts for cleaning
This next step requires the
most patience and skill so
that the wiring of the ion
source heater and
temperature sensor is not
damaged. Please be most
careful, moving the wires as
little as possible while
removing them from the
posts. Damage to the wires
would require replacement
of the ion source heater
block assembly. Since there
are 2 wires for the ion
source heater, shown to the
left, it is best to alternate
back and forth sliding off
the connectors. This gives
the least amount of wire
bending which avoids stress
and possible breakage.
© 2010 SHIMADZU13

14. QP-2010 Plus – Removal of ion source parts for cleaning
Again please be most
careful with the
temperature sensor wires,
shown to the left, moving
them as little as possible
while removing them from
the posts. Like the heater
wires, there are 2 wires for
the temperature sensor,
and it is best to alternate
back and forth sliding off
the connectors. The
temperature sensor wires
are single more fragile
wires. The heater wires are
double twisted wires. The
temperature sensor wires
have a clip to hold the
insulator closest to the
sensor because they are
more fragile than the
heater wires.
© 2010 SHIMADZU14