Hakko 808 Desoldering Pump Repair

Edit -- Successful repair link: • Franken Hakko 808 Deso...
This Hakko 808 was manufactured in 2012. These tools are made in Japan with great attention to details. The heating element is the weak spot.
Original Hakko parts are no longer manufactured and almost unavailable. However, a Chinese heating element S-993A can replace the Japanese Hakko original. The additional cost of about $20 (June 2024) is for the set of three soldering tips, since Hakko tips do not fit in the new heater. Overall cost of the parts - heater and three tips - is around $40

[@n8vnewyawker8]

THANK YOU!!!! THANK YOU SOO MUCH!!!! I’ve had my Hakka 808 since 1999, used occasionally a few times, looks near mint condition. Tried to use it a few days ago and noticed the heating element died and I can’t find a replacement. Was considering the $360 FR-301 or take my chances with a $100 S-993A from Amazon. As I checked out the S-993A desoldering pump, I noticed the heating element looked quite similar to the Hakko but it had 4 wires. Was gonna give up on the 25 yo Hakko and put it to rest until I saw your video. Liked!!! Faved!!! Saved!!! Commented!!! and Subscribed!!!

[@tektech1065]

Thank you! Would you perhaps post a video (even a short one) if it works for you? The Japanese pump in 808 is of top quality but the idea of having heater without a thermocouple to limit the temp. was a disaster. I will soon post a new video where I will retrofit my broken 808 with this Chinese heater and new tips from the S-993A and an actual proper temp. controller, the same as here: kzbin.info/www/bejne/j2mQhH1oZc-gbrs

[@n8vnewyawker8]

@@tektech1065 Thanks for the reply. Let me begin with a short synopsis... (not sure what happened but I replied earlier but it never posted) After noticing it wasnt heating up, I checked the element... no continuity, then plugged it in to check voltage to the heater w meter, none. I was assuming it was the rectifier/thyristor, AC03D or bad component on circuit board. At that point, I was contemplating the Hakko's last rites. Did a little more research on youtube and found this video first by KB1UIF which describes the circuit (I sold my scope a few years ago): kzbin.info/www/bejne/m5_Mg2d3oLqilcUsi=0PSvSLjVWcmeR3L1 Then I saw your video which confirmed the 993 element was a close fit (and omit the other 2 wires) and ordered the element and tips from Aliexpress. You mentioned about the temp runout sans thermocoupler... In the Hakko manual, it describes how to calibrate the iron with the two potentiometers. KB1UIF confirms the circuitry pulses the current to the element to control temps. When I receive the element, I'm going to try it out to see if it works. I will definitely be making a youtube video on this endeavor, and will give credit to both you and KB1UIF. If you can retrofit the thermocoupler into the Hakko, I will most likely do the same if this doesn't work and just keep it on the bench. Delivery of the element is going to be in a week or so. I will definitely keep you updated. Thanks once again. *** Forgot to also mention*** Was trying to figure out which connectors they used on the element so I didnt have to cut the orig off... I have a JST SM 2.54 female crimp that will accept the short male round pin (which I thought was molex but not).

[@n8vnewyawker8]

Hello, I just want to let you know I did it and it works. Weird, I wrote a comment but I dont remember if I posted it or now. I posted a video and mentioned you in my video.

[@tektech1065]

Amazing job! kzbin.info/www/bejne/kJqUfKKfjpyWrJo I will need to sit down and finish the planned retrofit of my broken Hakko 808. The quality of your video is so impressive! And you included every important detail of the replacement procedure. I will post your link wherever I see someone reporting broken heater in Hakko 808. Thanks, bro! And congratulations on the successful repair!

[@n8vnewyawker8]

@@tektech1065 I posted the directions on how to calibrate the heater in my video, If you have one of those soldering iron tip thermometers, you can use that to calibrate the iron and not worry about the thermocoupler. The complete S-993A was only $100 USD, and it includes a nice stand, honestly, its not that bad. I really didnt want to destroy the Hakko in case an orig heating element pops up somewhere. I forgot to mention in my video, I used a Q-tip swab and put some Armorall on the two rubber diaphragms. Mine are 25 years old, if those were to break, I definitely will retire it.

[@tektech1065]

@@n8vnewyawker8 Thank you v. much! I know Hakko recommends a temp. "calibration" but I don't see it possible to any degree of accuracy without any feedback from the heater. I think that's why the 808 are notorious for prematurely burned up heaters. Good point on getting the cheaper Chinese desolder tool. I just enjoy the challenge of fixing broken stuff whenever I have a chance.