11 Maintenance
44
B40IB006EN-D
2. Remove the clamps and the foil.
3. If required, clean the area of window, O-ring and
O-ring groove. Slightly coat the O-ring using
vacuum grease.
4.
Aluminium-coated Kapton foil:
Put the new foil centrically over the window
opening. The aluminium-coated side has to be
inside.
Combination of graphite foil and non-coated
Kapton foil:
Place the graphite foil within the O-ring first and
then put the non-coated Kapton foil centrically
over the graphite foil.
5. Mount the two clamps again.
6. Fasten the screws of the clamps, beginning
from the side where the cooling tube (1) is fas-
tened.
1