PS Magazine - TB 43-PS-567
PS, The Preventative Maintenance Monthly
ISSUE 567
FEBRUARY 2000
PS 567
51
FEB 00
PS 567
50
FEB 00
he 12 winder stay assemblies
(four 10-meter assemblies, four
15-meter assemblies, and four
20-meter assemblies) on your
15-meter mast antenna don’t
need a lot of PM, but they do
need some.
For example, the safety hook
locking spring needs a few drops
of oil every now and then. Rust
has frozen too many locking
springs open. A little lube will
let the spring rest in the fully
closed position.
our 300-meter, NSN 6020-01-220-
5435, and 1,000-meter, NSN 6020-01-
208-1147, CX-13295/G fiber optic
cables are sensitive to dirt once they’re
disconnected. Most of you do your PM
job by using protective caps on the
connectors when they’re not hooked
up.
But extra care is needed with fiber
optic cables. The fiber optics in these
cables are bare at two pin-sized points
in the connector. Just a little dust or
dirt on these points can stop your
communications.
AB-1339/G Antenna . . .
CX-13295/G Cable . . .
Finally, check the stretcher for cracks. If
you find any, replace the stretcher with a plas-
tic one, NSN 5120-01-343-3326.
Stay anchors also need occa-
sional attention. Check them for
damage and severe bends. A bent
anchor will not hold the antenna
securely in place. Replace bent
anchors.
Now look them over. More stubborn
dirt may require a brush to get out.
on the connector, it turns out to be a
bad thing when dirt or dust lands on
the bare fiber optics.
So make it a regular routine to tap
the connector and then the cap on your
hand to free loose dirt. Then give the
connector and the cap a good blow.
Often that little bit of dust or dirt
comes from the connector cap. When
you do a good thing by putting the cap
somebody
get this
dirt out
of my eyes!
the winders
are a
key part
of
your antenna operation.
don't forget
to take
care of them.
Anchor bent?
Add a few drops of
oil to hook spring
Make sure
fiber optic
cable ends
are clean
Tap connector.
..
Cracks in stretcher?
...and cap, then blow
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