[TowerTalk] Looking for UST Control Box

Les Kalmus w2lk at bk-lk.com
Wed Jul 27 14:10:17 EDT 2016


Bob,

I have two UST towers. One uses these switches and the other, newer, one 
uses Allen Bradley 802T-AP Ser J switches. I bought one new on eBay for 
a fraction of what UST wanted.

Les W2LK


On 7/27/2016 11:30 AM, Bob K6UJ wrote:
> Thanks for the info on the limit switches.  I am going to replace the 
> ones on my HDX589MDPL.
> They still work OK but it they have been there of quite a few years.
> A little preventive maintenance...........
>
> Bob
> K6UJ
>
> On 7/24/16 8:09 AM, J D Lambright wrote:
>> I replaced the totally corroded limit switches with the exact same ones
>> that came with the towers.  The towers had been laying horizontal for
>> several years, and water had gotten inside the limit switch body.
>>
>> They are GE CR115LB1 with 1NO - 1NC contacts and 1/2 inch npt fitting.
>> They are marked type 1,4,13, A600 P300.
>>
>> On Sun, Jul 24, 2016 at 9:11 AM, Les Kalmus <w2lk at bk-lk.com> wrote:
>>
>>> Which kind of limit switch did you buy?
>>>
>>> Les W2LK
>>>
>>>
>>> On 7/23/2016 7:43 PM, J D Lambright wrote:
>>>
>>>> I have two US Tower HDX-589MDPL towers.  When I purchased them, both
>>>> control boxes on the towers were extremely rusted inside and in 
>>>> terrible
>>>> condition.  I started from scratch and built 2 new control boxes 
>>>> with all
>>>> new components. Also, I replaced the cables running from the 
>>>> control box
>>>> to
>>>> the limit switches to the motor, and to the 120v power source. (I also
>>>> replaced each motor, as they were in really bad condition and 
>>>> locked up).
>>>> I enclosed each of these cables in flexible conduit with watertight
>>>> fittings. I simply used the UST wiring diagram and made mine 
>>>> exactly like
>>>> the original ones.  They are very simple and very inexpensive.
>>>>
>>>> I paid around $45 at Home Depot for each metal weatherproof box, 
>>>> and all
>>>> the other components are very cheap.  I spent less than $100 total 
>>>> on each
>>>> completed box.  They now look and function like new.
>>>>
>>>> One of the limit switches on each tower was completely rusted 
>>>> inside, so I
>>>> replaced them a couple of weeks ago.  UST's price on the limit 
>>>> switches
>>>> was
>>>> way too high, so I bought 5 of them brand new and in the box from a
>>>> surplus
>>>> electronics place on the internet.  They cost me $35 each.
>>>>
>>>> J D - KF5U
>>>> _______________________________________________
>>>>
>>>>
>>>>
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>>>
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