
METALJET D2+
INSTALLATION
Revision 19, November 2016
Page 4-13
4.3.2.4
High-pressure tubing and nozzle assembly
1.
Carefully remove transportation seals from the high-pressure tubing and the nozzle assembly before
connecting these to each other.
NOTE:
Some pressure can build up inside the high-pressure tubing, due to temperature and air
pressure cycling, causing some liquid metal spillage. Open the VCR cap inside a plastic bag to avoid
spillage.
2.
Connect the port on the high-pressure tubing to the nozzle assembly using an unplated stainless steel
VCR gasket, see Figure 4-13.
a)
Snap the VCR gasket with its retainer onto the top end of the nozzle assembly.
b)
Screw on and tighten the nut on the high-pressure tubing using your fingers only.
c)
Use two 19 mm wrenches to tighten the nut relative the top end of the nozzle assembly
another 45°. The wrench holding the nozzle assembly should not rotate.
Figure 4-13.
Connect the port on the high-pressure tubing to the nozzle assembly using an unplated stainless
steel VCR gasket. Pay careful attention to the assembly instructions in the text above.
4.3.2.5
Vacuum hose
Connect the vacuum hose to the KF16 ports on the turbopump on the electron gun and the roughing
pump in the pump box using KF16 o-rings and stainless steel KF16 clamps, see Figure 4-14.
Figure 4-14.
Connect the vacuum hose to the KF16 ports on the two vacuum pumps.