HP-Nozzle, Installation & Service Instructions
herzog systems ag
Tel. +41 71 394 19 69
Fax. +41 71 394 19 60
info@herzogsystemsag.com
Seite 8 von 10
Version 06/2022
Recommended disassembly tool
Option:
Our disassembly tool eases the needle bushing removal.
1. Holding pin must be removed or min. 5 mm screwed out
2. Position removal nut
3. Screw in removal screw until the bushing is removed
Assembly Note:
Bushing bore must be aligned with holding pin. Tighten the holding pin with moderate
strenght (ca. 8Nm).
The end position of the holding pin is approx. 0.5
mm away from the body unit.
More information at www.herzog-ag.com
2.
3.
lubricate
1.
While the nozzle is still installed, clean as far as possible in a heated state and finally
disassemble completely and clean individual parts.
Plastics such as; LCP or PPS burn away when the nozzle is heated in an oven for tow
hours at 500°C.
Never heat steel parts above 500°C!
Clean pneumatic or hydraulic actuator separately with max. 150°C!
Avoid kinking the heater band and sensor cables!
Help tools for cleaning:
Sand fluidized bed
Glass bead blasting
Cleaning oven
Gas burner
Wire brush
Steel wool
Before reassembly: check all parts for damage or wear.
Profit from our cleaning service. The nozzle is disassembled, checked and repaired if
necessary after customer approval.
Cleaning instructions
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