Intervals for relubrication and the ball bearings replacement
depend on the type of process used.
*Maintenance counter
D 40
ATP 900
Maintenance frequency
Alcatel - High Vacuum Technology - ATP User’s Manual
1/1
GB 00434 - Edition 01 - March 97
Pump curve:
ATP 900 - ATP 900 C
ATP 900 HPC
Housing temperature
measuring point
10000
9000
8000
7000
6000
5000
4000
3000
Relubrication schedule (hours)
2000
10
20
30
40
50
Housing temperature (
°
C)
ATP 900
Example
For use at 20°C housing temperature, in continuous
operation, at ultimate pressure,
the maintenance frequency is
8000h
(t).
Use of the pump
In continuous operation, at ultimate pressure,
no process.
In cycle less than 1 hour, at maximum inlet pressure,
no process.
In cycle less than 1 hour, at maximum inlet pressure,
with chlorinated or fluorine process.
t
8000h
1
st
lubrication
M*=0
t x 2
16000h
2
nd
lubrication
M*=1
t x 3
24000h
Disassemble the pump, replace
M*=2
and condition the ball bearings
