Leaky Bird Termaline Model 694
 

Hi,

my dummyload is leaky.
At the central conductor drops a small amount of oil.

So I tried to disassemble it and to tight up the letting through.
My 3/32-inch inbus-key fits but I´m not able to loose it.
It seems that the central conductor can´t be disassembled.

Would it be possilble to give me an advice?


vy 73 de Peter, DL6LAT

On Fri, 22 Apr 2005 20:18:37 +0200, "Peter Thoms"
wrote:

Hi,

my dummyload is leaky.
At the central conductor drops a small amount of oil.

So I tried to disassemble it and to tight up the letting through.
My 3/32-inch inbus-key fits but I´m not able to loose it.
It seems that the central conductor can´t be disassembled.

Would it be possilble to give me an advice?


vy 73 de Peter, DL6LAT



Peter,
My termaline was a little leaky too, and it took me a while
to figure out how to take it apart. The secret is there is an allen
screw on the inside that you have to engage with the proper allen
wrench, and once you do this, you will see on the other side what
turns, and how it comes apart. It has been five or six years since I
fixed mine, but I remember I left in the original gasket, (I think an
"O" ring) and made the new one out of if I remember correctly, was
..025 thick gasket material. The homemade gasket was round, with a hole
in it, and when added to the original assembly, you will see that
after you tighten the allen screw, the assembly will not "spin" but
tighten up fast, and stop the leak. I'm sorry, but that about all I
recall, but it should give you a good start on stopping your leak!
Best 73, Anthony, WB8MLA

Casual Fool schrieb
[...]
Peter,
My termaline was a little leaky too,
and it took me a while
to figure out how to take it apart. The
secret is there is an allen
screw on the inside that you have to
engage with the proper allen
wrench, and once you do this, you will see
on the other side what
[...]

Thank you very much.


vy 73 de Peter, DL6LAT

Casual Fool wrote
[...]
Peter,
My termaline was a little
leaky too, and it took me a while
to figure out how to take it apart.
The secret is there is an allen
screw on the inside that you have
to engage with the proper allen
wrench, and once you do this, you
will see on the other side what
turns, and how it comes apart.
[...]


Hello Anthony,

the parts are wrenched together that it seems that they are invented as
a single piece.
I have no idea how to turn the allen-screw.
Would it be possible to describe what part has to be fixed and how the
allen screw has to be turned?


vy 73 de Peter, DL6LAT

On Wed, 27 Apr 2005 17:59:16 +0200, "Peter Thoms"
wrote:

Casual Fool wrote
[...]
Peter,
My termaline was a little
leaky too, and it took me a while
to figure out how to take it apart.
The secret is there is an allen
screw on the inside that you have
to engage with the proper allen
wrench, and once you do this, you
will see on the other side what
turns, and how it comes apart.
[...]


Hello Anthony,

the parts are wrenched together that it seems that they are invented as
a single piece.
I have no idea how to turn the allen-screw.
Would it be possible to describe what part has to be fixed and how the
allen screw has to be turned?


vy 73 de Peter, DL6LAT


Hi Peter,
Yes, I know that they appear to be built as a single
piece, but, I assure you, they are not! To engage the allen screw, I
used a "T" handle allen wrench to loosen the assembly. You will see
that the assembly front to back, spins (and thus allows oil to seep
out). As I said earlier, there wasn't any part that had to be fixed!
The problem was that after a number of years, the round teflon
insulator had become compressed perhaps .005 or .010 of an inch, and
the internal "O" ring didn't have enough pressure against the flat
surface to seal the assembly. All I did to remedy this problem was
make a round gasket with a hole in it out of .025 inch gasket
material. I put this gasket against the "O" ring. All this gasket did
was take up the free space where the teflon insulator had "crushed"
over the years. I could have just made a new teflon insulator on a
lathe, but this was a simple fix, in other words, I shimmed the teflon
insulator so its thickness with the gasket provided sufficent pressure
against the "O" ring to prevent any leaks. Again, once you figure out
how to take it apart, you will see what I mean. Perhaps you could ask
a mechanic friend to help you on this if you cannot figure it out how
to disassemble it, as, after six years, I cannot remember verbatim the
exact way I did it, step by step, but its just a bit tricky, thats
all.. Once you put it back together with the new "shim" gasket, you
will see that as you tighten the assembly, it will no longer "spin"
when it is tight, thus, it will not leak oil either! Sorry I cannot
remember everything step by step, but you can do it! Best Luck es 73
OM... Anthony de WB8MLA

Casual Fool wrote
Hi Peter,
Yes, I know that they appear
to be built as a single
[...]

Thank you so much Anthony,

I belive my allen srcew has been sized. So it is only possible to drill
out the parts or - that´s the better idea - to strangle an elastomer
string behind the resistor contact.


vy 73 de Peter, DL6LAT