http://www.ocrg.org/W7KKE/rotor/rotor_help.html somewhere on the internet are pics of the interior of a yaesu rotor with mods by adding 1n4002 diodes in the rotor can't seem to find it http://www.ocrg.org/W7KKE/rotor/rotor_help.html
On Wed, Aug 11, 2010 at 2:33 PM, i8cvs domenico.i8cvs@tin.it wrote:
Hi Andy, WA9WUA
The limit switches SW6 and SW7 are normally closed during the intire rotation and opens only at 0° and 360°
If your rotator on the bench without the antenna vertical loading runs very smooth through the entire rotation probably the torque is very weak under mechanical antenna load because the AC electrolitic capacitor C 34 of 100 uF inside the rotator losted capacity.
Put the rotator into the grips of a vise .Slip a pipe into the boom tube and while running the rotator try if you are able to stop it with the force of both your hands.
If the capacitor is OK you must not be able to stop the rotation.Both limit switches seems to be out of question.
Best 73" de
i8CVS Domenico
----- Original Message ----- From: "Andrew" WA9WUA@embarqmail.com To: amsat-bb@amsat.org Sent: Wednesday, August 11, 2010 11:37 AM Subject: [amsat-bb] G5500B Rotor Repair
Hi Dom, I have the G5500B on the bench and it runs very smooth through the intire rotation. It does travel 360 and to the 90 degree point and keeps
rotating.
I think the limit switch on this end of rotation is defective. I will put
it
under loaded condition and see if it hangs up. I will not put it back in service without opening it up and checking it out. Thank you for your
very
good explanation of the possible problem.
73, Andy
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