This is a multi-part message in MIME format.
------=_NextPart_000_0048_01BE16C6.8878B3E0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
A number of weeks ago, I had a cable failure on my UST TX-472. At the
time, I blamed it on lack of attention in changing cables. Further
investigation uncovered unusual wear on the motor pulley. This caused
the cable to be pinched to the point of failure. I found this to be fact =
after
avoiding a second disaster when the new cable began to shred
and break. Bruce, at UST said that pulley wear is normal, but had never =
seen=20
wear as bad as I had experienced. Steve Morris pointed out that there =
must be=20
some other reason for the failure such as mis-alignment of the pulleys.
=20
This weekend, While checking the upper limit switch on the tower, I =
glanced
down at the motor unit to find a severe mis-alignment of the upper =
pulley. It is
welded at a angle when compared to the large pulley on the motor.
=20
Anyone owning one of these units should check this carefully. I would be =
interested in
hearing if this is a problem with other installations. I posted pictures =
on the URL
www.members.global2000.net/~bbond Click on the hyperlink named "Pulley"
=20
The response from UST should be interesting. I will keep you posted...
=20
Ben Bond
W2PS
------=_NextPart_000_0048_01BE16C6.8878B3E0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>
<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 =
HTML//EN">
<META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2><BR> </DIV></FONT>
<DIV><FONT color=3D#000000 size=3D2>A number of weeks ago, I had a cable =
failure on=20
my UST TX-472. At the</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>time, I blamed it on lack of =
attention in=20
changing cables. Further</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>investigation uncovered unusual wear =
on the=20
motor pulley. This caused</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>the cable to be pinched to the point =
of failure.=20
I found this to be fact after</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>avoiding a second disaster when the =
new cable=20
began to shred</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>and break. Bruce, at UST said that =
pulley wear=20
is normal, but had never seen </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>wear as bad as I had experienced. =
Steve Morris=20
pointed out that there must be </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>some other reason for the failure =
such as=20
mis-alignment of the pulleys.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>This weekend, While checking the =
upper limit=20
switch on the tower, I glanced</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>down at the motor unit to find a =
severe=20
mis-alignment of the upper pulley. It is</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>welded at a angle when compared to =
the large=20
pulley on the motor.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>Anyone owning one of these units =
should check=20
this carefully. I would be interested in</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>hearing if this is a problem with =
other=20
installations. I posted pictures on the URL</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2><A=20
href=3D"http://www.members.global2000.net/~bbond";>www.members.global2000.=
net/~bbond</A>=20
Click on the hyperlink named "Pulley"</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>The response from UST should be =
interesting. I=20
will keep you posted...</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>Ben Bond</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>W2PS</FONT></DIV></BODY></HTML>
------=_NextPart_000_0048_01BE16C6.8878B3E0--
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|