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HPS-III-Heißkanalsystem_Instandhaltung-Düsenspitzenwechsel_BA_V-2-0_EN
Picture 42: Clamping of a deinstalled HPS III nozzle in a vice
z352-03
Exchange of nozzle tips outside the mould
To exchange a nozzle tip outside the mould a vice is requi-
red. Protective jaws (pos. 70, preferrably made from alumini-
um), must be used to avoid damage to the nozzle.
The nozzle must always be clamped at the pressure tube
(pos. 1.1) . A HPS III-SXE single tip is clamped at the nozzle
body (see picturePicture 42).
7.4.4 Exchange of nozzle tips with nozzle installed in the mould
Standard installation
An exchange of nozzle tips must only be carried out when the nozzle is locked against rotation by a dowel pin in the mould.
Otherwise the heater or the thermocouple may be teared off.
Attention:
When HPS III-S nozzles with flow channel Ø 3 and 4.5 mm for standard installation are used the installation of a
dowel pin is not possible. Thus, the nozzle tips can not be exchanged with the nozzle installed in the mould.
Furthermore, a tip exchange inside the mould for HPS III-SXE single tips is only possible when the nozzle is fixed in the
clamping plate with the locating ring. Otherwise it may fall out and be damaged.
Front installation
A nozzle tip exchange for nozzles for front installation which are screw connected to the mould is possible without a lock
against rotation.
Clamping of nozzle in a vice
The nozzle must be clamped in the indicated areas only to avoid
damage.
If it is necessary to heat up the nozzle to deinstall the nozzle tip the
vice must be grounded.
CAUTION!
7.4.5 Exchange of nozzle tips outside the mould
Clamping of nozzle in a vice
Maintenance
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