User’s guide
HRT/D
-
14
-
HS
10 minutes
Tensioning and changing filament
8.1
SAFETY MEASURES
Before tensioning and changing the filament always take the following safety measures:
1.
Clear the working surface.
2.
Switch off the control units one at a time (switch
H
).
3.
Turn off the main switch
4.
Allow the heating elements to cool for at least
10
minutes.
8.2
TENSIONING
1.
Turn the filament to the lowest position.
2.
Hold the end of the wire on the right with pliers and undo screw
in the wire pin.
(Use socket screw key
no. 2
)
3.
Pull the wire taut with pliers and tension the spring.
4.
Tighten the socket head screw firmly again.
5.
Cut off the end of the filament. Always leave 8-10 mm projecting in order to be able
to tension the filament again.
Bend the projecting piece down.
Attention!
The end of the filament is sharp
.
8
Wire pin
Socket head screw
2
3
4
