Hakko 470 Repair Secrets

The vacuum pump on my vintage Hakko 470 desoldering station would start (with good suction) when the trigger (of its 802 desoldering gun) was pulled, but would NOT stop when the trigger (of its 802 desoldering gun) was released. I had to toggle the 470's main power switch OFF/ON to stop the pump. In this video I show you what parts to replace to solve that problem. They're NOT the commonly recommended parts! Learn from my mistakes and save yourself at least $60...
#hakko #electronicrepair #electronicsrepair #howto #diy #troubleshooting #fixed #vintageelectronics #mk328 #testequipment #soldering #solderingiron #solderingtips #solderingmachine #desoldering

[@mariannepina9545]

This has been a great instrument. It's terrific to have it ready to go for another forty years!!

[@roerdomp16e]

Thanks for the research! I will check mine to prevent any damage! And probably replace the caps; better safe than sorry!

[@roerdomp16e]

Well... I checked mine, and yes they were already leaking and started attacking the pcb. I think I was just in time !

[@LawrencePina]

Thank you for confirming the solution. This is how we help each other! Just wish more people would do the same...

[@jackfu3206]

Wonderful, thanks

[@cajuncoinhunter]

Hi there , I saw you on Jestine's site today , I saw your vid on the Hakko pump. Those 2 last caps you tested were way out of spec on the ESR , they should have read 0.20 - 0.45 of an OHM instead of 1.4 OHMS , that is way too high for those caps ....... There was another one in there that was hinging on the edge of being bad also...... Till the next video Mon Ami ........

[@emmettturner9452]

Yeah, props to Hakko for making it easy to service but those parts really add up. You were 75% of the way to the cost of a clone station. Granted, you didn’t need most of them and you’ve saved others the expense of trying all that.

[@christywear5272]

got one of these off ebay got it in today.. good grief the jamed up heater on the tip was jammed.. .. it's toast. looking at tips.. looks like its unobtainium .. so .. pondering going for 817 or 809 for parts. any recommendations?

[@LawrencePina]

My very early model 470 came with an 802 desoldering gun. Later models of the 470 almost certainly would have come with different desoldering guns. You mention the 817 and 809, but you don't make clear which desoldering gun came with your unit! So, visit hakkousa.com/support/support/user-manuals.html Enter 470 in the search box and download the manual which most closely matches the model you bought. Referring to this manual, hakkousa.com/support/support/user-manuals.html which closely matches my old 470 station equipped with an 802 gun, and assuming you also have an 802 gun, you're going to need: A pack of A1009 ceramic filters for the 470. A pack of A1033 ceramic filters for the 802. A pack of A1030 spring filters for the 802. All three of these are listed on page 21. A pack of A1003 desoldering nozzles, 1 mm or 0.04" (most useful size). A B1087 cleaning pin for use with A1003 nozzles. A B1303 cleaning drill for use with A1003 nozzles. All of this stuff is listed on page 2. The heating element, should you need one, and you will if the tip is missing metal like an old auto exhaust pipe, is an A1029. The heating element is shown on page 21. The cleaning pin (looks like a screwdriver) used with the A1029 heating element is a B1259. You'll definitely need one of those. B1259 is also listed on page 2. You might also need a long cleaning drill for use with the A1029 heating element. I have one, but I'm not sure of the part number. I haven't used it that often... Soldering gun maintenance (use of these tools) is covered very well on page 12 in the manual. One thing the manual overlooks is periodic A1012 O-ring replacement. The O-ring, shown on page 21, is located at the back of the filter pipe. Over a period of time, it petrifies, cracks and causes a vacuum leak. Keep it lubricated with silicon grease and replace it often. The green color, nitrile, O-ring currently in my 802 came from a Harbor Freight O-ring kit, sku 67644. You can also get very inexpensive assortments of micro drill bits, sku 61526 or sku 94606, used for cleaning A1003 and other size nozzles from Harbor Freight. Hope these part numbers help. The 470 is a wonderful tool, but there is a long learning curve and you need all this stuff in order to maintain it. Good luck with your 470! Study the manual. Thanks for asking about it.