How to remove this press-fit clips?
- Thread starter elnaldo
- Start date
it looks like the plastic screw is meant to spread the plastic fastiner to keep it in place. can you get a small pair of needle nose to hold the fastiner with some pressure applied? you might be able to unscrew the plastic screw that way. if so you may be able to squeeze the fastener itself to remove it. i just had to do something similar today on my jeep. they were the push in type. removing the center post allowed the fastener to pull out.
elnaldo
Lunatic Member
Tried to unscrew gently but it didn't , at least without force. Just moved 1/4 turn.
I've seen something similar in computer mothetboards. The center pin blocks the board but it's not easy to pull it back. Tried to push from the bottom of the cabinet too but I didn't want to force it too much.
I've seen something similar in computer mothetboards. The center pin blocks the board but it's not easy to pull it back. Tried to push from the bottom of the cabinet too but I didn't want to force it too much.
elnaldo
Lunatic Member
Now I understand. You mean to do some pressure on the fastener against the center pin . I'll try that.
stoN_Cold
Super Member
Try to press and then turn CCW or CW.
elnaldo
Lunatic Member
I'll try 1/4 turn, and pull with nose pliers or some other tool, or press the base when rotated. definitely looks like "releasable", and the central pin is spreading that spacer. What I don't know is if the pin should completely release or if it keeps in place just pressed a bit or rotated 1/4 turn. Perhaps it's a regular scew I need to completely unscrew...
Here are some spacers but none like this one:
http://www.fabian.com.mt/en/specialoffers/webshop/15314/pcb-screw-push-rivet-fastner.htm
https://www.isc-sl.com/pcb-supports/ISCCC
https://www.isc-sl.com/female-screw-pcb-post-with-releasable-clip/mscar/
Here are some spacers but none like this one:
http://www.fabian.com.mt/en/specialoffers/webshop/15314/pcb-screw-push-rivet-fastner.htm
https://www.isc-sl.com/pcb-supports/ISCCC
https://www.isc-sl.com/female-screw-pcb-post-with-releasable-clip/mscar/
Goldie99
Super Member
Try a google image search for "plastic screw rivets" - might help give you a better idea of how they work. Some you'd remove the screw, then the through hole part, others the screw probably remains 'captive'.
Or.... if you need some new ones: https://parts.qsc.com/pl-000045-pl (the part number's in the service manual....
)
Or.... if you need some new ones: https://parts.qsc.com/pl-000045-pl (the part number's in the service manual....
)
Last edited:
stoN_Cold
Super Member
What an echo.
elnaldo
Lunatic Member
I don't like this "system" at all, now it's quite hard to put the PCB back in... Some of the fasteners stay "open" and it's not possible to press all of them, some are in the center of the PCB between large capacitors... Lubed them with silicone grease and it helps, but not 100% effective. If getting parts wouldn't be so hard down here, I'd replace all of them with real screws and spacers.
OMGCat!
Super Member
I deal with these all the time when trying to put cars back together. When they are new they poke in perfectly nice but when they are old it's a pain to try to get the splayed legs back through the holes without at least one of them getting hung up. I usually apply a heavy volley of cussing and that seems to help.
I actually just had to put similar things back into a C-80 preamp I was working on. Tiny versions of the ones that torment me at work. Cussing again seemed to help.
