Locking Crimp Lug Removal?

[CJ]

these lugs are starting to show up in guitar amps with increased frequency, much to the chagrin of anybody who has to remove them in order to remove the circuit board for whatever reason.

and they are tough, stainless steel, so you end up ripping the pc board apart in frustration of you lose your patience,

is there some type method or special needle nose pliers made for removing these offensive monstrosities?

thanks for any help!

 

[radardoug]

What brands? Maybe write to them with a bill for your removal costs.

 

[gyraf]

Most probably a leak-over from the car industry? In that case you'd need to figure out the right pin-removal-tool "or it dosen't happen"

I've had good results with kits like https://www.aliexpress.com/item/1005006727785130.html

/Jakob E.

 

[ps_electrik]

Small jewelers screwdriver slipped over the spring tab?

 

[dai h.]

(sorry if this is a stupid idea...) there's a spray here sold for electronics use, which (I think) is just anhydrous ethanol (ethanol with no water) and propellant. I might try giving the connection a shot of that hoping it will work in the tiny gaps and act as a temporary lube (then wiggle side to side while pulling--making sure the unit is de-energized, first). Or maybe a combo of the above mentioned (some sort of tool to create more of a gap) and the ethanol spray (hoping it slides out). (Faston connector?)

 

[CJ]

There are a few crude methods on YouTube, the best suggestion I have found is to spread the lugs apart with s small screwdriver or dental pick, then work it loose.

Coming in from the side with a small nail held by a pair of needle nose was one of the videos but the problem with that us that the lugs I was trying to remove were stacked closely together and between a couple of filter caps.

 

[Ike Zimbel]

These are .250" QC (Quick Connect) terminals we're talking about, yes? hard to tell since everything's the same size on the Internet... If so, I second the lubricant idea...isopropyl might work but something like Caig F5 or G5 or even WD-40 should work to break up the oxide layer and make them easier to pull off.

 

[Johnny1234]

When I was doing hundreds of amps a year in NYC, I would label them, cut them, do the repair, and hard wire solder them to prevent problems in the future.
Lots of extra work, but I tried to be the best in my market.

 

[dai h.]

apparently some Faston connectors have some sort of latching mechanism that needs to be depressed to release, so perhaps there is something like that for those?

 

[Evertide]

If it is a Locking Faston , use next time an Unlocking Sleef , so pulling on the wire it will lock ; pulling the sleef will unlock the faston...

 

[CJ]

I think this might be it, kind of expensive, thinking diy a small screwdriver would be the ticket,

https://connectorexperts.com/i-2496...yY0madFODhuxVSzo-c9hui9EVtAK_zAkaAlHGEALw_wcB

 

[CJ]

Maybe this too, https://www.tti.com/content/ttiinc/...Xdwpyv9nE-nfUbaSHBaZ5mcT1B6Z6dXQaAss9EALw_wcB

Edit: that might be for pulling connectors out of housings like they use on cars,

 

[Evertide]

Look for :
Positive Lock Receptacles

" Housing insulates and serves as a removal tool "

 

[dai h.]

was imagining something like this but with two (sharp on the ends) tapered (flat-blade screwdriver-like) tines:



Here's an automotive kit that offers a huge variety of tool sizes (so increasing the chance of finding something that will fit--maybe not tapered though) :

https://www.amazon.com/Depinning-Electrical-Connector-Extractor-Automotive/dp/B0BCJM14XK

 

[Evertide]

Here it is not about removing the housing , missing the housing is missing the removal tool...

 

[Disco Volante]

I know these from spending time in the auto industry. It is correct they have a small latch and the sleeve should work as removal tool. This can however fail, leaving a very strong piece of plastic covering a very stubbornly stuck connector. We used to use small electronics screwdrivers, stick them into the sleeve from the back and just the right wiggle will free the lock.If you don't pull too hard on it. If you can even get two hands that close.
Or you poke a hole in your finger with the screwdriver, spend a while jumping around the shop cursing the day you were born, clean up the mess and have someone with more patience and smaller fingers get in there. Like your 6-year-old daughter...