Author: Ed via TowerTalk <towertalk@contesting.com>
Date: Fri, 22 Jul 2016 14:04:41 -0700
I have an HDX-589 tower that is need of a replacement control box. In looking at the original design, compared to the latest design in my HDX-5106, they're "apples n oranges." The 589 is much older a
Ed, I have an HDX-589. Is the metal enclosure rusted out ? If so, a new Hoffman box wouldn't be too much. You could reinstall the electrical gear in a new box for a lot less than $1000 :-) Bob K6UJ T
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 22 Jul 2016 23:40:39 -0400
My LM470 uses a plastic replacement instead of the Hoffman box (PVC?) and they don't rust. 73 Roger (K8RI) I have an HDX-589. Is the metal enclosure rusted out ? If so, a new Hoffman box wouldn't be
Author: Edward via TowerTalk <towertalk@contesting.com>
Date: Fri, 22 Jul 2016 22:40:32 -0700
For clarification, I am looking for a tower mounted control box with the components installed. No limit switches or cables. Thanks. _______________________________________________ ___________________
Hoffman enclosures are pretty well made, I have not seen one with any significant corrosion even after being outdoors for well over a decade. John KK9A My LM470 uses a plastic replacement instead of
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Sat, 23 Jul 2016 18:25:51 -0400
The Hoffman boxes do depend on a good coat of paint to protect the surface where the door gasket seals. Mine showed surface rust is less than 8 years with just the factory primer. Whether a heavy dut
Author: Edward via TowerTalk <towertalk@contesting.com>
Date: Sat, 23 Jul 2016 15:40:16 -0700
Yes. My 106' tower has limit switches. And so does my 589 tower. That's why I'm thinking the same design can be used. By the way, the control box itself is in fine shape. It the electrical part that
I'd definitely want limit switches. They are good insurance. 73 Roger (K8RI) Actually, limit switches are NOT good insurance. They don't protect against the contactor sticking. The contactor used is
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Sat, 23 Jul 2016 20:22:25 -0400
When used properly, the limit switches are an additional 2 sets of contacts. Any additional sets of contacts do serve as additional safety. Mine are Microswitches which are widely used in industry. I
Rick, That's very good to know about the contactor sticking possibility. I always watch everything when I raise or lower my HDX-589MDPL motorized tower. I made a 25 foot remote control with up/down/o
I'd definitely want limit switches. They are good insurance. 73 Roger (K8RI) Actually, limit switches are NOT good insurance. They don't protect against the contactor sticking. The contactor used is
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
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
Thanks. I think those may have been used on older towers. I have them on my older UST HDX-589MDPL but a newer HDX-572MDPL has Allen Bradley 802T-AP series J, switches marked type 4, 6P & 13. I bought
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 switc
I replaced the totally corroded limit switches with the exact same ones that came with the HDX-589MDPL towers. The towers had been laying horizontal for several years, and water had gotten inside the
I have a copy of the factory wiring diagram for the UST MCL-100 control box. Just send me a note if you would like a copy. J D Lambright - KF5U _______________________________________________ _______
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, 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 Bob K6UJ
thanks Les, I will check to see which ones my tower uses. Bob K6UJ 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