Siemens CD 3002 - Manual (Page 8)

Purging of CD 3002 using air blower
LDS 3000
Air blower
4
1.3
Maintanance
The major maintanance on the air blower is to change the input filter at
a regular interval. The time between changes is totally dependent on the
environment in which the air blower operates. The inlet under-pressure
(directly after the filter) will reveal the condition of the filter and can be
used to monitor this. Siemens Laser Analytics can provide suitable
equippment for this.