© by WilTec Wildanger Technik GmbH
Item +
Page 17
05 2022-1
Unmounting a defective heating element:
To replace a defective heating element, the soldering iron must be unmounted as follows:
1.
Turn the fixing nut
(1)
counter-clockwise and untighten the cover of the soldering tip
(2)
and
soldering tip
(3).
2.
Turn the nipple
(4)
counter-clockwise and remove it from the soldering tip.
3.
Remove the heating element
(6)
and plug connection
(11)
from the handle.
4.
Remove the base spring
(5)
from the distancing sleeve.
Any defective heating element can be detected with the following measurement of the resistance values:
•
The value of resistance of the heating element (red) is normally comprised between 1.7 and
1.9
Ω.
•
The value of resistance of the sensor (blue) is normally comprised between 16 and 18
Ω.
If the values measured differ from the once stated above, the heating should be replaced as follows:
1.
Unsolder the contacts of the heating element and sensor.
2.
Replace the old heating element with a new one. When installing, make sure that the cable have
a convenient bending radius to keep the line resistance as small as possible.
Construction of different types of soldering irons:
900 M/L
Align the cable accordingly
&
choose a convenient bending radius
