Page 1 of 1
4001 bridge height adjustment
Posted: Wed Jul 09, 2008 11:51 am
by gareth
Anyone know what size the string height adjustment allen screws are ?
Apparently, I have every allen wrench in creation apart from that one.....
Re: 4001 bridge height adjustment
Posted: Wed Jul 09, 2008 12:00 pm
by qwezirider
1/16" is the one that just fit into my 4003 bridge. Whether or not they've changed the size of that screw over the years, I don't know. But maybe that'll be a start.
Re: 4001 bridge height adjustment
Posted: Thu Jul 10, 2008 2:28 am
by vin*tone
gareth wrote:Anyone know what size the string height adjustment allen screws are ?
Apparently, I have every allen wrench in creation apart from that one.....
LOL. Maybe you have a metric set?
Re: 4001 bridge height adjustment
Posted: Thu Jul 10, 2008 8:42 am
by Darkhollow
Standard inch set should include 5/16 - 1/4 - 7/32 - 3/16 - 5/32 - 1/8 - 3/32
Standard Milli set should include 10 - 8 - 6 - 5 - 4 - 3 - 2.5 - 2 - 1.5
If it is a really small broach size, my guess would be a 1/6" which isn't always included on a standard set. A 1.5mm is also extremely close to 1/16" at .059"
Re: 4001 bridge height adjustment
Posted: Thu Jul 10, 2008 9:00 am
by rickaddict
RIC sells the correct size wrench on their website:
http://www.rickenbacker.com/cart.asp?ca ... ccessories
I think the part number is 2902 which is a 1/16" allen wrench.
Edit: Hmmmmmm...Looks like a couple other people had the same answer!

They haven't changed sizes over the years. At least...not since the gap-toothed aluminum tail piece was replaced. All of mine from 1973 to the present are the same.
Re: 4001 bridge height adjustment
Posted: Thu Jul 10, 2008 4:33 pm
by johnallg
Re: 4001 bridge height adjustment
Posted: Thu Jul 10, 2008 4:51 pm
by gareth
Indeed it is 1/16" I got a wrench for it today. I also know why I was hopelessly confused as usual.
Some previous owner had stripped out the interior hex of one of the screws, and of course that was the one I was testing on.....
Does anyone know if part no 05301, the set screw, is the correct replacement for that screw ?
Duh.
Re: 4001 bridge height adjustment
Posted: Thu Jul 10, 2008 7:35 pm
by Darkhollow
According to the parts diagram it is 05301 yeah.
http://www.rickenbacker.com/pdfs/btailpiece.pdf
You can grab a 6-32 x 5/8 long cup point set screw at any local hardware store.