00196101-04_Serviceanleitung Vakuumtest 08-2018_D-E.pdf - 第95页

Service manual vacuum check with closed nozzles Page 95 fr om 136 4.2.6 Va c uum tests on C& P20p / C& P20m2 he ads ( Venturi ) In order t o provide guidanc e when trou bleshoot ing, a number of diff erent modif …

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b.) With type 1069 nozzles
ACT
NOM
in the vicinity of the loose
screws
Holding circuit < nominal
Loose Screws
in the vicinity of the
loose screws
open < nominal
closed < nominal
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4.2.6 Vacuum tests on C&P20p / C&P20m2 heads (Venturi)
In order to provide guidance when troubleshooting, a number of different modifications were
made to a CP20p head and vacuum tests were then carried out with type 4235 open nozzles
(calibration nozzles) and type 4069 closed (red) nozzles, and the results were compared.
For the sake of clarity, only the first 8 measurements that were taken are shown
here.
The modifications were always carried out on segment 1.
4.2.6.1 Measurements without any modifications (NOMINAL values)
a.) With nozzles 4235
NOMINAL
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b.) With closed nozzles 4069
NOMINAL