This will seem like a silly question. I need to attach a standard earth
bond to a copper pipe. However, I can't get the clamp to stay in place -
every time I try, it just slips because the metal strap isn't held
tightly enough. What am I doing wrong?

(Here's what I'm doing: using wire wool to clean the pipe; putting metal
strap around pipe and back through the hole; tightening the screw so
that it holds the strap in place, while at the same time pulling the
strap taut. This last step is a bit tricky, but however taut the strap
is, when I let go the clamp slips down the pipe a bit. Am I supposed to
turn the screw so tight that it passes through the metal strap?)

"Robert Hunt" wrote in message
...
This will seem like a silly question. I need to attach a standard earth
bond to a copper pipe. However, I can't get the clamp to stay in place -
every time I try, it just slips because the metal strap isn't held tightly
enough. What am I doing wrong?

(Here's what I'm doing: using wire wool to clean the pipe; putting metal
strap around pipe and back through the hole; tightening the screw so that
it holds the strap in place, while at the same time pulling the strap
taut. This last step is a bit tricky, but however taut the strap is, when
I let go the clamp slips down the pipe a bit. Am I supposed to turn the
screw so tight that it passes through the metal strap?)

Have you loosened off the locknut first?

No way will you be even able to drive the screw through the strap, you'll
strip the thread on the clamp long before that - which is a common problem
if you overtighten the screw.

David

On Tue, 23 Nov 2004 19:21:10 +0000, Robert Hunt
strung together this:

This will seem like a silly question.

Yep.

What am I doing wrong?

I don't think you're tightening it enough.
The screw is meant to bend the straps so they can't slide out.
Friction alone is no good.
--

SJW
A.C.S. Ltd
Please reply to group or use 'usenet' in email subject

In article ,
Robert Hunt wrote:
(Here's what I'm doing: using wire wool to clean the pipe; putting metal
strap around pipe and back through the hole; tightening the screw so
that it holds the strap in place, while at the same time pulling the
strap taut. This last step is a bit tricky, but however taut the strap
is, when I let go the clamp slips down the pipe a bit. Am I supposed to
turn the screw so tight that it passes through the metal strap?)

Undo the lock nut and unscrew the screw near flush with the bracket. Pull
the strap tight and bend the end over to hold it initially. Now tighten
the screw with a decent size driver. It won't slip now. Remember to do up
the lock nut.

--
*It ain't the size, it's... er... no, it IS ..the size.

Dave Plowman London SW
To e-mail, change noise into sound.