6.
Re move the screws se cur ing the cru ci ble to its mount ing flange. There are eight of these screws, and
six of them will be ac ces si ble if you turn the cru ci ble to the po si tion shown in Fig ure 3-6. Per form
the fol low ing steps in re mov ing these screws:
CAU TION
It is important to follow the procedure described below in removing
the crucible mounting screws. The compressed O-ring exerts
considerable upward force against the crucible, and the
counter-pressure exerted by the mounting screws must be relieved
evenly to prevent damage to the screws or the threads in the crucible
mounting flange.
Operation
3-14
0101-9004-0A
STIH-270-2PT
Figure 3-6. Removing the screws that secure the crucible to the crucible
mounting flange
Figure 3-5. Socket-head screw correctly retained by sleeve on
end of Allen driver
