[TowerTalk] Fw: [MARC-MD] US-Towers HDX 555 stuck up. Help anyone?

[Andy Brinkley]

Gene -

Sounds like you have a power issue somewhere, possibly a limit switch that has gotten water into it or water in the motor. 
There have been several threads here describing how to shield the TEFC motor on the HDX-555 from the elements.
The manual / schematic used to be on the US Tower website, if you can't find it contact me direct and I will send you a drop box link to my copy.

Also I have the manual crank handle here somewhere that came with my HDX-555 that allows you to manually raise or lower the tower if you need to borrow it.


Andy / NC4AB


-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Gene Smar via TowerTalk
Sent: Tuesday, April 4, 2023 10:11 AM
To: Tower Talk <towertalk at contesting.com>
Subject: [TowerTalk] Fw: [MARC-MD] US-Towers HDX 555 stuck up. Help anyone?

TT:
     Can someone help Bruce with his crank-up question? Please reply to him and not me. Many thanks. 
73 deGene Smar AD3F 

Sent from my Radio Shack TRS-80 model 100 laptop 
 
   ----- Forwarded Message ----- From: "euntermeyerbbaskett via MARC-MD" <marc-md at marcclub.org> To: "MARC Amateur Radio Club" <marc-md at marcclub.org> Cc:  Sent: Mon, Apr 3, 2023 at 5:54 PM Subject: [MARC-MD] US-Towers HDX 555 stuck up. Help anyone?  
I am looking at an HDX 555 tower and lifter of a friend of mine who is blind. It is fully extended up. There is no noise from the motor. After some other basic trouble shooting, I checked the motor's start capacitor, and it seems OK. Makes a nice big spark when shorted.  There is an indoor controller, and at the tower's service panel one of several relays can be heard when toggle switch for down is thrown (indoor or out.)Ideas/experiences? What is next? Any help or suggestions would be very appreciated.  I have not found or seen any service manuals. Please write me at my arrl.net address.Thanks, 73, ~ Bruce K3BAB 

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