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

[Edward Finn]

I have an hdx-572. It had a bad limit switch that prevented lowering but
was jumped to bypass.
I have the box schematic around here on a hard drive.
I can also search to see where I got a new limit switch.
Ed wa3drc

On Tue, Apr 4, 2023, 3:39 PM Andy Brinkley <nc4ab at nc4ab.com> wrote:

> 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
>
> Sent from my Galaxy
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