Bedienungs- und Wartungsanleitung für Handschweißextruder Serie HSK10 DE
HSK Kunststoff Schweißtechnik GmbH
30
8.3 Change of die
Left-hand-threaded and danger of injury by burning!
1.
Heat up the machine for approx. 10 minutes.
2.
Remove the welding shoe.
3.
By means of a spanner, screw the die (item no. 1) out of the extruder cylinder.
4.
Screw the new die into the extruder cylinder.
5.
Loosen the die by approx. half a rotation.
6.
Tighten the die definitely after 5 minutes' time, otherwise there is the danger of damaging the
brass threading of the die.
8.4 Change of extruder screw
Only possible with heated screw and therefore danger of injury by burning!
1.
Heat up the machine for approx. 10 minutes
2.
Empty the machine
3.
Pull out mains plug
4.
Remove the die (see chapter 8.3)
5.
Loosen the screws M4 (item no. 30)
6.
Pull off the cylinder from the drive engine in the direction of extrusion.
7.
Remove the Seeger circle ring (item no. 6) by means of special nippers for circles, type i-2.
8.
Now pull out the extruder screw with the thrust bearing to the rear side.
9.
It is highly recommended, when changing the extruder screw to clean the thrust bearing and to
grease it with "high temperature grease shell".
10. Now proceed with the re-assembly of the machine in the opposite order. When
mounting the thrust bearing special care must be taken to mount first the
bearing ring with the small boring, afterwards the ball bearing cage and finally
the bearing ring with the big bore. Please see to it that the feather key of the
driving engine and the groove of the extruder screw are in exact alignment.
8.5 Change of welding nozzle
The mounting or change of the welding nozzle may only be affected in heated condition.
Danger of injury by burning!
After loosening of the attachment screw (1) (see picture below)
Pull off the welding nozzle
with an appropriate pair of nippers, slightly turning.
The nippers may only have contact with the aluminium base plate (2) of the welding nozzle; otherwise
there is the danger of damaging the nozzle.
