00196101-04_Serviceanleitung Vakuumtest 08-2018_D-E.pdf - 第125页
Service manual vacuum check with closed nozzles Page 125 fr om 136 b.) W ith type 2069 cl osed no zzles NOMIN A L
Service manual vacuum check with closed nozzles
Page
124 from 136
4.3.2 Vacuum tests on the CPP head
NOTE
Using the type 2069 closed (red) nozzles
Make sure that you deactivate nozzle scanning when using the red nozzles.
In order to provide guidance when troubleshooting, a number of different modifications were made to
a CPP head and vacuum tests were then carried out with type 2057 open nozzles (calibration
nozzles) and type 2069 closed (red) nozzles, and the results were compared.
The modifications were always carried out on segment 1.
4.3.2.1 Measurement without modification
a.) With type 2057 nozzles
NOMINAL
Service manual vacuum check with closed nozzles
Page
125 from 136
b.) With type 2069 closed nozzles
NOMINAL
Service manual vacuum check with closed nozzles
Page
126 from 136
4.3.2.2 Overview of possible causes and effects
Table with reference values:
Head Type
Vacuum values with
calibration nozzle
Open
Closed
Holding
CPP
Venturi
2057
ca. -500 mbar
ca. -850 mbar
-50 to -60 mbar