M a i n t e n a n c e
50
Model 1010 Ion Mill
Standard Magnification Version
CAUTION:
When re-installing the Dewar knob, it must be re-oriented to its
original position. Failure to follow this instruction could result in
Dewar damage or poor specimen cooling.
4.
Remove the knob which projects through the instrument's back panel.
5.
Disconnect the wires leading to the Dewar solenoid valve.
This connection includes a quick-disconnect mechanism that permits the unplugging
of the wires. The Dewar is interlocked through several different means to maintain its
vacuum integrity and avoid inadvertent venting.
6.
Remove the four screws that attach the rear panel.
7.
Remove the rear panel.
8.
Remove the flexible Viton® tube that connects the Dewar valve to the specimen
rotator assembly.
9.
Remove the two screws in the Dewar base plate that attach the base plate to the
supporting bracket.
10.
With one hand, firmly grasp the Dewar housing.
11.
With the other hand, stabilize the junction where the tube projecting from the Dewar
meets the tube projecting from the stage.
This junction contains a radial o-ring seal that maintains the vacuum integrity in the
Dewar.
12.
SLOWLY move the Dewar toward the back of the instrument.
CAUTION:
When the integrity of the vacuum seal is broken, the Dewar will
move freely. It is important to have a firm grasp of the Dewar to
avoid dropping it when vacuum is lost.
The plastic Dewar base serves as a receptacle for the Dewar.
13.
Remove the Dewar from the base.
The base should remain with the instrument.
Dewar
Quick-disconnects
Solenoid valve
Flexible Viton® tube
Dewar knob
Dewar base plate
Supporting bracket
Screw