[amsat-bb] Yaesu G-5400B Service Manual

[Roy Dean]

Patrick,

I found the installation instructions, too.   I was hoping more for
dissassembly/lube instructions.   However, I've got both halves split open
and cleaned up already, and it was pretty easy.   I actually got this
rotator from Stephen (VE4NSA) who is also on this list.

So far, the rotor appears to be in good shape.  No signs of water
intrusion, gears are still looking good and all have grease on them.   The
ball bearings all had grease, as well, although it was very thick and a lot
had oozed out and was dry on the exterior of the housings (WD-40 cleaned
that up nicely).  My wife is due home any minute and is likely to be upset
when she sees this exploded rotator spread across the dining room table)

I will likely lube the gears with lithium grease, and was going to use
synthetic axle grease on the bearings, but perhaps somebody has a more
appropriate suggestion?   This assembly was sold to me as a "tech special",
so the controller actually needs some work, too (I believe it was one of
the gages didn't register.... was that you that had the same issue?)

One other question to the group, was recommendations for the control wire.
 I think I remember somebody suggesting network cable wire?   Is there
anywhere where I can find the small 8-pin connectors (look to be DIN)?
 I'm hoping to use new connectors and make "extension" cables of different
lengths depending on how I am using the system, so I'll need male and
female connectors.

--Roy
K3RLD


> Hey Roy, I just found the installing instructions somewhere, but can't
> find them atm! But: I bought a used G-5400B about two years ago and it has
> done more
> than 10k observations on my SatNOGS station #37 now. It was laying
> around for about 15 years before I bought it and for sure was used a
> while. It is still working and the only issues I am now dealing with are at
> the
> controller box. Best regards, 73, Patrick, DL4PD