[amsat-bb] Re: Yaesu 5400

Henk PA3GUO pa3guo at amsat.org
Mon Jan 15 04:15:25 PST 2007

Hi Paul,

I have repaired my KR400 and KR500 for the 
same reasons. After inspection I found out the 
rotor was very dirty inside.

On my website I have the pictures of the cleaning
process, it gives you a feel for what to expect:

click on Rotors 
click on KR400 or KR500 in the submenu on the left

Preventive maintenance: yes - but I admit I don't do that :-)

ps: I find my rotors noisy as well, even after cleaning.

Success !
Henk, PA3GUO

>The issue I really have is should I strip them down?  Both have quiet
>operation C/W and elevate but both are nosier on return CCW and descend. I
>checked the bearings on the elevation unit through the inspection cap and
>under the terminal screws and they look fine, shiny and greased. I'm unable
>to check the azimuth unit without cracking it open.
>What's the feeling on preventative maintaince on these units?

>Paul Luggar

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