43
Calibration
4000 MiD® Instructions, V6695
7.
Remove the four M4 screws.
8.
Gently pull the vac-chip assembly away from the SFD using the dow-
els as guides
.
9.
Once the vac-chip assembly is removed, the SFD cover plate must be
fitted to the MiD.
10.
Lay the assembly face down on a clean lint free surface (Fig. 59).
11.
The tube lens assembly is attached to the vac-chip flange with five
vacuum screws. The vac-chip is located under this assembly.
Fig. 30
The vac-chip and tube lens assembly
12.
Using the Phillips head screwdriver partially unscrew the five vacuum
screws in the following pattern 1, 4, 2, 5, 3 (refer to Fig. 60), repeat
until the screws are loose.
Fig. 31
Tube lens assembly and vacuum screws
13.
Gently lift the tube lens assembly away from the vac-chip flange.
14.
Using a pair of tweezers, remove the vac-chip from the flange
vac-chip flange
tube lens assembly
vac-chip
vac-chip screws
3
2
4
5
1
