How to replace heating element of dosoldering gun for SS-331
1）Disconnect the power plug, wait unit the desoldering gun temperature down to room temperature.
2）Loosen screws and disassemble desoldering gun.
3）Cut off the wire of heating element, prepare a new heating element (model no. 5SS-331N-H).as follow figure.
4）Connect heating element：
Put the heating element on the black heating element holder, insert the heat shrink tube（Φ3x25mm）and metal tube (Φ2x6mm) to the wire, connect wire and pull the metal tube to the connect position, crimping the metal tube with crimper tool, pull the heat shrink tub to the metal tube and heating.
-- Long blue wire (ground) connects to the yellow wire in handle
-- Two white wires (heating element) connect to the two red wire, no need to distinguish positive electrode and negative electrode.
-- Two blue wires (Sensor) connect to the black and blue wire in handle, no need to distinguish positive electrode and negative electrode.
-- Any one wire connect to the Sleep control sensor
5）Measure the resistance value again, make sure the value is correct. Short the desoldering gun nozzle and shell of plug, and the resistance value should be 0Ω.
6）Assembly desoldering gun again, do not press the wire or put into the wrong position.
How To Cleanjammed Desoldering Gun of SS-331
Desoldering Gun Maintenance
WARNINGS:
1. To avoid injury or damage the items, do not touch the metallic parts near the nozzle, and do not use this system near the flammable items.
2. Remove the power plug before performing maintenance procedure, except doing the nozzle and heating element clean process.
3. If the pump does not operate, immediately clean the nozzle & heating element, and replace the filter.
4. In the high temperature, the solder waste will get oxidized(lead free solder’s melting point is 220° C, non-lead free solder’s melting point is 180° C),swelled and stuck on the inner wall tightly, If it did not clean after use, the solder waste will block the desoldering gun, can not remove even use cleaning pin.
Please follow below steps to remove the solder waste:
1. Push the knob up, and then pull the back holder.
2. Take the spring out from the glass tube ,then remove the solder waste
Put the spring back to glass tube, then put glass tube back to position.Press the back holder, then the knob will bullet down and become locked automatically .
INSTRUCTIONS:
1. After each operation is finished, please idling suck the desoldering gun3-5 times soon, this can clean the solder waste inside the pipe.
2. If the operation interval is about 20 minutes, after idling sucking the desoldering gun, please also use the cleaning tool to clean the pipe.
3. When you find the desoldering efficiency gets down, please use the cleaning Pin to clean the pipe immediately.
4. If the operation interval is long, we advise to adjust the temperature to about 200° C . When you use it again, you can adjust to the working temperature,
5. When the glass tube has absorbed about 1/2 solder waste, please clean it immediately. When you find the filter is getting hardened, please replace the filter immediately.