g'day i'm nathan from miners den and tonight's tech tip on the minelab show is how to replace
the not yellow uh caps and knobs on excalibur 2. so first thing we're going to do is we're
going to get a little tiny phillips head a flathead screwdriver sorry or maybe perhaps
a little scalp or a little knife and we want to pull off the old um caps so we've got one here
hold on here just try and you might have to force them i know sometimes
they're held in by a little bit of glue or silicon so that one's a bit tight there we
go let's try and make sure they don't fly across the room and pull out the old ones
like so now we've got them ones out now the knobs are held in with a little nut
so we want to undo the nut to some degree but not not fully off but we want to undo it
until we can get the um knob to come off so i'm just going to use a pair of point nose pliers i
couldn't get my socket in there so that's what i'm gonna have to use so we've got one there
there we go got that too
as well these are quite easy but after this been under water for a while i wouldn't be surprised if
they were quite tight or it was full of debris or whatnot so you may need to clean it first
all right so those five now next step is to um get the knobs onto the detector
um firstly though you may need to um loosen the nut off until almost when it's off
and then you'll want to try and push it on and that one went all right
now we'll do that with all of them but you may also need to pry open the blue parts
there the blue plastic part just so it fits onto the onto the dial that one's all right
i'll just do that with all of them just
until the nuts almost off we don't want to take the nut off completely
there we go
so it's almost off and i'm just holding on to the
nut and pushing it on and they're going on all right
last one there now i'm going to tighten them all up but be mindful that it's only
tightening onto plastic so you can use a socket or whatnot but do be mindful that
we don't want to over tighten it because we could break it so
there we go they're all pretty good now what we'll do now is we'll get these yellow caps on and as
you can see they've got a little yellow black line on through them and we want to make sure
they're in the right position so we'll screw slide this first one over to the discriminate
mode and we'll just push it in so it's saying it's on disk there we go disk and pinpoint they line up
pretty well so it's pretty good you may want to put a little bit of dab of glue or silicon or
something like that um onto it just to hold it on not too much because you might have to get it off
again so maybe just the tiniest bit that one there we go we're on off there it lines up perfectly now
screwed it all the way to the bottom i'll usually put them in so they're all lining up the same way
there we go volume is lowest that's the highest aims works well now we want to line it up with
auto which is about there pushes in a right that's pretty good
and now last one of the discriminate knob just push that in about there if it wants to go in
there is a little um
sort of a knob sticking out there they don't want to perfectly line up sometimes
if we can get it to line up about
there for me would be probably pretty good
i'm still not working
maybe a bit fiddly these things
that's pretty good so there we go and that one
lines up perfectly so there we go so we've replaced all the knobs and um yeah they
all line up and they all work fine so yeah so that's how you replace the knobs in the
little yellow caps on a excalibur 2 and this has been a tech tip for the minelab show