User’s guide
HRK 65-125
-
21
-
HS
Tensioning and changing filament
10
10.3
CHANGING THE FILAMENT
1.
Turn the filament to the lowest position (Only for bottom heating)
2.
Unscrew the socket head screw in the wire pin on the
right (use socket screw key
no. 1
½
)
3.
On the left side, slide the expanding pin with the spring
out of the pin block
4.
Slide the spring off the expanding pin
5.
Unscrew the expanding pin from the connection screw
(incl. connection wire)
6.
Remove the filament from the expanding pin, and the wire pin
7.
Slide a new filament into the expanding pin and make sure that the eye is pulled
well into the pin
8.
Screw the expanding pin onto the connection screw
(incl. connection wire) and attach firmly
Be careful not to damage the expanding pin. Tightening firmly by
hand is sufficient.
9.
Slide the spring over the filament and slide the filament
through to the expanding pin
10.
Slide the filament with expanding pin through the white
insulation sleeve of the pin block, and pull it through as far as possible
11.
Then insert the end of the filament in the wire pin. Pull it taut and tension the
spring with pliers
12.
Tighten the socket head screw (use socket screw key
no. 1
½
)
13.
Switch on the machine and the control unit, corresponding to the replaced
filament (switch
H
). then turn the temperature control (
I
) to the highest position
(position
99
).
14.
The filament will then glow red
Never touch the filaments and the reflectors when the machine is
in operation.
15.
Hold the end of the filament with pliers and loosen the socket head screw one turn
(use socket screw key
no. 1
½
)
16.
Pull the filament taut and tighten the socket head screw. Check that the filament
is straight. If not, repeat this operation
