Great News! Glad to hear. Robert MacHale. KE6BLR Ham Radio License. http://spaceCommunicator.club/aprs%C2%A0 . Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration
On Friday, August 23, 2019, 4:51:23 PM PDT, Ken Swaggart W7KKE via AMSAT-BB [email protected] wrote:
The problem turned out to be a loose setscrew at the motor. Easy fix, but took about four hours to reassemble the rotor so the limit switch was tripped correctly and then get the antennas reattached. Anyway, back in business.
I took quite a few photos of the az rotor disassembly and I'll add them to my G5500 page within the next few days:
http://www.ocrg.org/W7KKE/rotor/rotor.html
73,
Ken, W7KKE
From: [email protected] [email protected] Sent: Friday, August 23, 2019 10:39 To: AMSAT-BB ([email protected]) [email protected] Subject: G-5500 az rotor failure
This morning I found my G-5500 will not move left or right. Not even a wiggle. Took some measurements and the wiring appears to be intact but I don't understand the 40 Vac readings when the rotor is connected to the control box. Here are my readings taken at the control box end of the wiring:
Rotor connected to control box:
Common (pin 6) to Left (pin 4) Press Left: 28 Vac Right: 40 Vac
Common (pin 6) to Right (pin 5) Press Left: 40 Vac Right: 28 Vac
Rotor disconnected. Measuring control box terminals:
Pin 6 to 4 Press Left: 29.5 Vac Press right: 0
Pin 6 to 5 Press Left: 0 Press Right: 29.5 Vac
Measuring rotor cable at control box, disconnected from box:
6 (brown) to 4 (blue) 5.3 Ohms
6 (brown) to 5 (orange) 5.3 Ohms
4 (blue) to 5 (orange) 8.9 Ohms
Any suggestions before I pull the rotor off the mast?
73,
Ken, W7KKE
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