EWIKON HPS III, Operating Manual

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117 HPS-III-Heißkanalsystem_Instandhaltung-Fühlerwechsel-S-SXE_BA_V-2-0_EN
7.5 HPS III-S nozzles – exchange of thermocouple
7.5.1 Safety instructions
WARNING! PPE
Hot surfaces
Body burns by hot surfaces.
Sharp edges and tips
Cut injuries to body and extremities, mainly to the hands
CAUTION!
Cleaning of nozzles, threads and sealing surfaces
Damage to sealing surfaces during installation.
• The outside of the nozzle should be clean and free of plastic residues.
• Threads and sealing surfaces must be checked on cleanliness and free movement.
• Clean sealing surfaces and threads by using suitable cleaning tools (best directly after deinstallation of
nozzle tip when the plastic is still viscous). Appropriate cleaning tools (brushes, scraper) must be made
of materials which are softer than the steel of the hot runner components (soft metals or brass), also see
chapter „5.3.1 Tools and operating materials“. Hereby, the sealing surfaces and threads can not be damaged
during the cleaning process.
Maintenance