I don't know anything about Yaesu rotators, but if this were a
CDE unit I would recommend replacing the AC motor capacitor as a
first step. The caps are cheap, and if they deteriorate, rotator
torque is reduced.
Maybe Yaesu has the same setup.
Dave Hachadorian, K6LL
Yuma, AZ
-----Original Message-----
From: Dana Roode K6NR
Sent: Saturday, April 14, 2018 10:32 AM
To: towertalk@contesting.com
Subject: [TowerTalk] Slow/Stuck rotator in one direction
[Not sure if this got sent the first time, apologies if
duplicate]
Hi,
My 4 Element 20m yagi is on a 15' mast on a Yaesu rotator in a
TX-455
US-Tower. Over the last year, it has become slow to turn across
the
NorthWest direction, working fine in other directions. As of a
day or so
ago, I could turn the rotator counter clockwise into the NW area
but now I
can no longer turn it clockwise to get beyond about 290 degrees.
My tower et al is at my remote station about 80 miles away and I
will need
to go up there to take a look at what is going on. I am looking
for some
general advice on correcting these sorts of problems, which would
seem to
relate to the vertical alignment of the bottom 5' of mast in the
rotator
and through the thrust bearing. I forget how much adjustment
play there is
in the rotator shelf mounting and don't know if you can adjust
the the
thrust bearing.
I don't think anything is binding - cable wise or with my dipole
arm mount
- but I will need to check that out too.
Dana - K6NR
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