56
SECTION 8
TURBO MOLECULAR PUMP RECONDITION
8.1
Recommended maintenance intervals
It is different for deterioration progress speed of each part changes greatly by pump condition.
Refer to the following list as overhaul. These are not terms of warranty.
Refer to Section 8.5 "Controller Replacement" for Power supply unit.
Process
Recommended
maintenance intervals
Non-active gas (Sputtering, Evaporation and so
on) and Light load process
3 years
(1) Recommended maintenance intervals for parts
These are not terms of warranty.
Part name
Recommended
maintenance intervals
1
Ball bearing
Refer to Section 8.3
2
Touch down bearing
4 years
3
Rotor
7 years
4
Motor
(2) Others
When exchanging parts, it has possibility that other parts are exchanged for improving a
reliability.
Содержание UTM300B
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