[amsat-bb] Re: Kenpro 500 parts?

[G. Beat]

Tony - 



Unless you have access to a local machine shop and machinist, 

your only source for these Japanese manufactured parts is Yaesu USA. 



SOME of the KR-500 parts may be identical (common) to the current production Yaesu G-550 elevation rotator. 



Yaesu purchased the Kenpro Company which originated these designs. 

The individual azimuth and elevation rotators were KR-400 and KR-500. 

Later came the KR-5400, the KR-5400-A/B and the KR-5600-A/B. 

[i]After the purchase, Yaesu eventually changed these prefix designations to "G" from the earlier "KR". 

DIY REPAIR SITES for the KenPro / Yaesu Rotators, 
Courtesy of the previous KenPro/Yaesu queries from QRZ and AMSAT-BB reflector (archives) 



Henk, PA3GUO (Netherlands) described the repair and cleaning of the KR400 and KR500 rotators (Photos). 
http://www.pa3guo.com/ 



KENPRO-YAESU ELEVATION ROTATOR MAINTENANCE 
This is a useful collection of articles compiled by longtime AMSAT member Ron Long W8GUS. 
Common faults of the KR-500 series elevation rotator and its derivatives are described. 
Instructions, hints and tips for disassembly, cleaning, and rebuild are included. ZIP File size 11.5K. 
http://www.users.zetnet.co.uk/clivew/kr_rot.zip 



W7KKE had a web page that demonstrated the  rebuilding of his Yaesu G-5500 Az/Elev rotator, 

however that web page is now gone.  : -( 

http://webpages.charter.net/k.swaggart/W7KKE/w7kke.html 



IF you need parts or desire to have the rotator repaired by Yaesu, you can contact the Yaesu service department in California that handles rotator repairs. 

Vertex Standard USA 
Attn: Amateur Repair 
10900 Walker Street 
Cypress, CA 90630 
For customer service, technical support or parts, please call: 714-827-7600 
==== 
K6VLF in Fresno, CA started a repair business for older KenPro / Yaesu rotors --- 
Contact him for details! 
* Phone: (559) 264-0772 
* Email: k6vlf at comcast.net 
* Web: http://yaesurotorrepair.com 


Talino, IZ7ATH has photos (belt) of his repair 
http://www.qsl.net/iz7ath/web/02_brew/13_rotor/english/pag07_eng.htm 


Full article 
http://www.qsl.net/iz7ath/web/02_brew/13_rotor/english/pag02_eng.htm 


His web site 
http://www.qsl.net/iz7ath/web/home_eng.htm 



KenPro KR-500 manual 
http://www.w4rp.com/KR500/index.html 


http://www.g4dmf.co.uk/rotatorinfo/rotators.html 


Yaesu G-550 manual 
http://www.yaesu.com/downloadFile.cfm?FileID=968&FileCatID=155&FileName=G%2D550.pdf&FileContentType=application%2Fpdf 


Greg 

w9gb 
=== 

Date: Thu, 18 Nov 2010 00:37:12 -0500 
From: Tony, K2MO  
Subject: To: AMSAT-BB 

All, 

Can anyone tell me if the mounting hardware on the Yaesu G-550 is the same 
as the old Kenpro KR-500? Anyone other than Yaesu selling parts for 
these units? 

Thanks, 

Tony - K2MO