EWIKON HPS III, Operating Manual

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128 HPS-III-Heißkanalsystem_Instandhaltung-Fühlerwechsel-S-SXE_BA_V-2-0_EN
Picture 103:
Pull off the protective tube
3. Clamp the nozzle in the vice at the pressure tube (see
„Picture 85: Clamping of a deinstalled HPS III nozzle in
a vice“).
4. Disassemble the protective tube. It may be necessary to
use two screwdrivers as levers to untighten the protec-
tive tube. If necessary apply WD 40 penetrating oil (see
chapter „5.3.1 Tools and operating materials“) or heat
moderately from the outside.
1. Clamp the nozzle in the vice at the nozzle body
2.
Unscrew and remove the flat head screws
(ISO 10642)
of the nozzle body. Release the pressure tube carefully
from the nozzle body and pull it out.
Attention! Check flat head screws for damage and
replace them if necessary.
Flat head screws of the nozzle body
Flow channel diameter (mm) Type of screw
6 M3 x 14 10.9
9 M3 x 14 10.9
12 M4 x 20 8.8
18 M4 x 16 12.9
NOTE!
Maintenance
Picture 104:
Clamp the nozzle and unscrew the flat head screws
Picture 105: Pull out the pressure tube
The thermocouple exchange for HPS III-SXE nozzles (6 / 9 / 12 mm)
is carried out analogous to the thermocouple exchange for HPS III-S
nozzles (6 / 9 / 12 / 18 mm) as described here.
NOTE!
HPS III-S6/9/12/18 (valve gate) nozzles – exchange of thermocouple