Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Mast\s+slippage\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Mast\s+slippage\s*$/: 41 ]

Total 41 documents matching your query.

1. [TowerTalk] Mast slippage (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Wed, 15 Sep 1999 09:45:21 -0700; Here is a repeat of a posting I made some time back. I have been using neoprene rubber pads between the cast aluminum jaws of my Yaesu 1000SDX rotator and a 20 ft x 0.25 mast on my TX 472 crankup tow; /archives//html/Towertalk/1999-09/msg00327.html (9,395 bytes)
2. [TowerTalk] Mast slippage (score: 1): Author: jfleming@shelbynet.net (WA9ALS - John); Date: Wed, 15 Sep 1999 12:14:26 -0500; Hard to imagine, but if there's anyone out there less experienced than me in this TT game, be careful what you use in your rotator's jaws, and follow the LXC directive. The post below sounds like a g; /archives//html/Towertalk/1999-09/msg00328.html (11,661 bytes)
3. [TowerTalk] Mast Slippage (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Sun, 22 Apr 2007 13:22:35 -0700; We have seen numerous posts on TT about mast clamp slippage. The gist of the posts is that we need to have a tighter grip on the mast and, hopefully, the rotator will tolerate the torque without dama; /archives//html/Towertalk/2007-04/msg00453.html (9,015 bytes)
4. [TowerTalk] Mast slippage (score: 1): Author: "Les Brown" <lesbrown@sympatico.ca>; Date: Tue, 28 Jul 2020 19:00:15 -0400; I have 2 large Yagis attached to a 3 inch OD Ľ inch wall thickness Chromoly mast running down the tower to a ProSisTel PST-71D. On a windy day, I hear creaking sounds from the tower. The mast is slip; /archives//html/Towertalk/2020-07/msg00364.html (6,930 bytes)
5. Re: [TowerTalk] Mast slippage (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Tue, 28 Jul 2020 19:50:50 -0500; This will be challenging. You need very hard bits (real cobalt bits, not just the gold colored ones), plenty of cutting oil, patience (because youll have to go slow), and lots of stamina (because as; /archives//html/Towertalk/2020-07/msg00365.html (8,206 bytes)
6. Re: [TowerTalk] Mast slippage (score: 1): Author: "Lee K. Brown MD via TowerTalk" <towertalk@contesting.com>; Date: Wed, 29 Jul 2020 01:04:13 +0000 (UTC); Been there, done that (with a Yaesu G-2800DXA). Not easy, but definitely possible. Prepare for a long stay up there; be patient. Bring a spare battery for your cordless drill, or use a real drill tha; /archives//html/Towertalk/2020-07/msg00366.html (10,585 bytes)
7. Re: [TowerTalk] Mast slippage (score: 1): Author: John Simmons <jasimmons@pinewooddata.com>; Date: Tue, 28 Jul 2020 20:06:40 -0500; This problem strikes me as needing more thought before climbing the tower. I am imagining a clamshell fixture, the upper half of which clamps around the mast with setscrew type bolts (a la alfaspid),; /archives//html/Towertalk/2020-07/msg00367.html (10,101 bytes)
8. Re: [TowerTalk] Mast slippage (score: 1): Author: <john@kk9a.com>; Date: Tue, 28 Jul 2020 21:53:12 -0400; You made a good decision going with a 3" mast. It is stronger and you have more surface area to clamp. I just looked at photos of ProSisTel mast clamps and basically it looks like two formed plates a; /archives//html/Towertalk/2020-07/msg00368.html (8,190 bytes)
9. Re: [TowerTalk] Mast slippage (score: 1): Author: JP <jp@ezoom.net>; Date: Tue, 28 Jul 2020 19:02:35 -0700; If I were drilling a hole in a chrome moly mast without the benefit of a drill press, Id be looking to borrow or rent a mag drill. Yes it requires 120v but the amount of time and aggravation saved wo; /archives//html/Towertalk/2020-07/msg00369.html (9,569 bytes)
10. Re: [TowerTalk] Mast slippage (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Tue, 28 Jul 2020 21:41:53 -0700; I looked at the 71D picture at Array Solutions. Not impressed with the bent up clamps. Grade 8 bolts can apply 2x the force of the stock SS if torqued to spec, the easiest thing to try. Torque the bo; /archives//html/Towertalk/2020-07/msg00370.html (11,427 bytes)
11. Re: [TowerTalk] Mast slippage (score: 1): Author: Ron WV4P <wv4ptn@gmail.com>; Date: Tue, 28 Jul 2020 23:57:51 -0500; I hate to disagree with Grant but I'm making a plate out of 1/4" steel to clamp to mast with 2 u bolts, pop mag drill on with a HSS Annular cutter and smoking a cig as I send it through making a perf; /archives//html/Towertalk/2020-07/msg00371.html (12,861 bytes)
12. Re: [TowerTalk] Mast slippage (score: 1): Author: K9MA <k9ma@sdellington.us>; Date: Wed, 29 Jul 2020 00:32:50 -0500; After recently ruining several drill bits trying to drill through a cast iron fence post, I discovered there are carbide tipped bits for drilling metal. I haven't tried them on anything, let alone cr; /archives//html/Towertalk/2020-07/msg00372.html (7,920 bytes)
13. Re: [TowerTalk] Mast slippage (score: 1): Author: Larry <lknain@nc.rr.com>; Date: Wed, 29 Jul 2020 07:13:22 -0400; What about something like Slipp-Nott (not the sports mat!)? I think it is being sold by Tennadyne. Not sure but it may only fit a 2 in mast which wouldn't help you of course. 73, Larry W6NWS On 7/28; /archives//html/Towertalk/2020-07/msg00373.html (9,401 bytes)
14. Re: [TowerTalk] Mast slippage (score: 1): Author: Phil <pmills7@comcast.net>; Date: Wed, 29 Jul 2020 06:45:26 -0500; I'd suggest drilling only part way into the mast on one side, tapping the hole in the rotator clamp on that side, and screwing a bolt in far far enough to go down in the mast a little. 73, Phil W5BVB; /archives//html/Towertalk/2020-07/msg00374.html (10,015 bytes)
15. Re: [TowerTalk] Mast slippage (score: 1): Author: "tony.kaz--- via TowerTalk" <towertalk@contesting.com>; Date: Wed, 29 Jul 2020 08:14:51 -0400; I had slippage with my 2" mast. Changed the Prosistel mast clamp bolts to #8 hardness and added a Slipp-Nott by Teledyne. I cranked down really hard on all the bolts. The mast hasn't slipped in at le; /archives//html/Towertalk/2020-07/msg00375.html (10,839 bytes)
16. Re: [TowerTalk] Mast slippage (score: 1): Author: JP <jp@ezoom.net>; Date: Wed, 29 Jul 2020 05:48:11 -0700; Exactly. Doesnt take a lot of imagination to figure out a way to get a good working surface for the mag drill to do its thing. Better than perching up there for who knows how long with a handheld dri; /archives//html/Towertalk/2020-07/msg00376.html (14,485 bytes)
17. Re: [TowerTalk] Mast slippage (score: 1): Author: john@kk9a.com; Date: Wed, 29 Jul 2020 07:55:13 -0500; Unfortunately there are a lot of poor quality tools being sold to consumers, I do not know what kind of steel they are mode out of. I bought a metric tap once at Northern Tool and it twisted up on th; /archives//html/Towertalk/2020-07/msg00377.html (8,412 bytes)
18. Re: [TowerTalk] Mast slippage (score: 1): Author: <dj7ww@t-online.de>; Date: Wed, 29 Jul 2020 15:20:01 +0200; I have 4 Prosistel rotators in use and all masts slipped whatever I torqued the screws. So I decided to drill through the masts and used fitting bolts to fix that. I used an electrical hand drill wit; /archives//html/Towertalk/2020-07/msg00378.html (9,434 bytes)
19. Re: [TowerTalk] Mast slippage (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Wed, 29 Jul 2020 07:41:57 -0700; Ron, I shouldn't generalize, as it is possible to mag drill on a tower as you are doing. But rigging my 60# mag drill on a tower with a custom fixture and using Rota-Broach drills is not in most ham; /archives//html/Towertalk/2020-07/msg00379.html (14,140 bytes)
20. Re: [TowerTalk] Mast slippage (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Wed, 29 Jul 2020 08:19:36 -0700; Generally, carbide tipped drills use a grade of carbide and tip geometry for cast iron, formulated for cutting abrasive materials. They aren't intended for steel but might work for a few holes. For d; /archives//html/Towertalk/2020-07/msg00380.html (10,776 bytes)

Current List: 1 - 20
Page: [1] [2] [3]