[TowerTalk] Slow/Stuck rotator in one direction

Dave Hachadorian k6ll.dave at gmail.com
Sat Apr 14 14:12:14 EDT 2018

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 at contesting.com
Subject: [TowerTalk] Slow/Stuck rotator in one direction

[Not sure if this got sent the first time, apologies if 


My 4 Element 20m yagi is on a 15' mast on a Yaesu rotator in a 
US-Tower.  Over the last year, it has become slow to turn across 
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 
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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