Desoldering
1. Set the desoldering switch to on.
a) Set the temperature.
b) Always set the temperature as low as possible.
c) To be able to set the temperature precisely, measure the temperature at the nozzle with a
thermometer and adjust the temperature control.
2. The temperature can be set between 380
and 480
℃
.
℃
3. Wipe off old solder on the nozzle in the hole in the center of the sponge (if the tip of the nozzle
is stuck with old solder, it will no longer get really hot; coat the nozzle with a thin layer of new
solder to achieve optimal heating output).
4. Hold the nozzle to the soldered point and melt the solder.
a) Never touch the circuit board itself with the hot nozzle.
b) Make sure that the solder is properly melted (partially melted solder clogs the desoldering
gun).
c) Never try to force the solder to move. It moves very easily when melted, and if it does not
move easily, that is a sign that the solder has not melted properly.
5. After confirming that the solder has melted, suck it up by pressing the trigger on the gun.
a) Hold the trigger pressed for one to two seconds longer so that no solder residue gets
stuck in the supply lines and everything gets into the filter.
b) Do not leave any solder residue in the hole in the board.
c) After removing the solder, let the board cool down to prevent accidental desoldering.
6. Clean the filter and moisten the sponge regularly during and after use to ensure consistent
performance.
7. When finished work, switch off the desoldering unit.
8. Before putting the device away, let the desoldering gun cool down.
Pressure display
The pressure indicator helps to resolve problems that may arise during desoldering.
Test the pressure gauge while the nozzle is open. Press the trigger and check the pressure
gauge. If it is red, clean the nozzle and heating element, empty the filter tube, and replace the
filter. If the indicator is blue, cleaning is not necessary and you can get on working.
If the pressure indicator is blue or just a little red, no further action is necessary.
If the pressure indicator is more than half red, replace the filters and clean
the nozzle and the heating element.
Note:
If the suction power of the desoldering gun decreases significantly,
clean the nozzle and the heating element with the cleaning needle.
CAUTION:
Carry out maintenance work on the station only with the device switched off and the
power plug pulled out!
Replacing the hot air heating element
The heating element is in the middle of the hot air iron. The normal service life is approximately 1 year
under normal operating conditions.
Loosen the 3 screws that hold the handle (Fig. I).
Push the plastic tube to one side.
Loosen the connection of the earthing cable.
Danger!
In the tube there is an easily breakable quartz glass as an insulation material that
must not be damaged.
Loosen the cable connections and remove the heating element.
© by WilTec Wildanger Technik GmbH
Item
Page 20
http://www.WilTec.de
http://www.aoyue.eu
03 2021
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