Re: [WISPA] Gin Poles/Rohn 25 tower erection
Comments inline - Original Message - From: "Ralph" <[EMAIL PROTECTED]> To: "'WISPA General List'" Sent: Tuesday, June 05, 2007 10:15 PM Subject: RE: [WISPA] Gin Poles/Rohn 25 tower erection The alton-moore site seems to think that Rohn25 sections don't weigh anything. He said he has carried 2 sections in each hand easily. Depends on how hefty this guy is... I have also carried 2 sections in 1 hand before and 2 in another hand ... it's a total of 74lbs for 2 9'6" (10ft straight sections) of Rohn25 Don't believe it. Again - depends on your own capabilities... I actually think it was a typo and he meant he carried 2 sections... 1 in each hand... but I am not him and won't assume. A section weighs about 40-50 lbs and you need a good rope No Section of Rohn25 weights 40-50 lbs... Don't believe it. and certainly a better pulley and clamps that he shows. His block is a bit rough looking, but it's prob a bit more stout then you could buy off of ebay..but his clamps, they will work just fine although they will cause you a ton of extra work trying to use them. I'd be afraid of his setup. I will say this once, and I don't want to debate on who THINKS they can do what Stacking a Rohn25 tower is a very dangerous business. Even more so then the larger steel we stack and downstack most of the time. Rohn25 is very forgiving but you will get in trouble very quickly if you do not know what you are doing and have experienced people working with you. Do NOT try to skimp on the equipment you use for any tower work. You can screw up once and seriously hurt of kill someone. Once you get above your 2nd section, if you slip / fall / drop a section / shock load the guy wires. Rohn25 will kink and collapse quicklike Hire atleast 1 experienced person in who has stacked SEVERAL of these smaller tower types like Rohn / Magnum / Etc. JohnnyO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Hammett Sent: Tuesday, June 05, 2007 12:59 PM To: WISPA General List Subject: Re: [WISPA] Gin Poles/Rohn 25 tower erection Well that looks fairly simple. There's not much out there for gin pole videos. :-p http://www.youtube.com/watch?v=5vCuIDi4FTQ That was the only one I could find. There's a lot to say on this site, though I dunno if any of it is correct: http://www.alton-moore.net/towers.html -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Gin Poles/Rohn 25 tower erection
37lbs for Rohn25 .. JohnnyO - Original Message - From: "Ralph" <[EMAIL PROTECTED]> To: "'WISPA General List'" Sent: Tuesday, June 05, 2007 10:15 PM Subject: RE: [WISPA] Gin Poles/Rohn 25 tower erection The alton-moore site seems to think that Rohn25 sections don't weigh anything. He said he has carried 2 sections in each hand easily. Don't believe it. A section weighs about 40-50 lbs and you need a good rope and certainly a better pulley and clamps that he shows. I'd be afraid of his setup. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Hammett Sent: Tuesday, June 05, 2007 12:59 PM To: WISPA General List Subject: Re: [WISPA] Gin Poles/Rohn 25 tower erection Well that looks fairly simple. There's not much out there for gin pole videos. :-p http://www.youtube.com/watch?v=5vCuIDi4FTQ That was the only one I could find. There's a lot to say on this site, though I dunno if any of it is correct: http://www.alton-moore.net/towers.html -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] Gin Poles/Rohn 25 tower erection
The alton-moore site seems to think that Rohn25 sections don't weigh anything. He said he has carried 2 sections in each hand easily. Don't believe it. A section weighs about 40-50 lbs and you need a good rope and certainly a better pulley and clamps that he shows. I'd be afraid of his setup. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Hammett Sent: Tuesday, June 05, 2007 12:59 PM To: WISPA General List Subject: Re: [WISPA] Gin Poles/Rohn 25 tower erection Well that looks fairly simple. There's not much out there for gin pole videos. :-p http://www.youtube.com/watch?v=5vCuIDi4FTQ That was the only one I could find. There's a lot to say on this site, though I dunno if any of it is correct: http://www.alton-moore.net/towers.html -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Gin Poles/Rohn 25 tower erection
Well that looks fairly simple. There's not much out there for gin pole videos. :-p http://www.youtube.com/watch?v=5vCuIDi4FTQ That was the only one I could find. There's a lot to say on this site, though I dunno if any of it is correct: http://www.alton-moore.net/towers.html - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com - Original Message - From: "Ralph" <[EMAIL PROTECTED]> To: "'WISPA General List'" Sent: Tuesday, June 05, 2007 11:58 AM Subject: [WISPA] Gin Poles/Rohn 25 tower erection Rohn sold them. They marketed it as an "Erection Fixture". I prefer Gin Pole. You can buy the top piece with the pully and the bottom clamps from http://w9iix.com/ii8.htm They are about $230.00 and you can supply the mast or buy it. It is a 2"OD pipe (aluminum or steel) We have one with a real heavy duty mast, but it is too heavy. I would use a thinner walled pole next time. There are pics on the site of how to use the pole. It is really quite easy. I had a home made gin pole once too, til someone borrowed it and wouldn't return it. If I get time, I will document how it was made. It was very cheap. Ralph This is some of the text from the site: THE GIN POLE, Here at IIX EQUIPMENT, many people ask: What is a gin pole? Why use a gin pole to do tower work? How do you use it? Well, lets talk about it. The foremost consideration when performing tower and antenna work above ground level is HUMAN SAFETY. A gin pole, or raising fixture, provides this safety by giving the tower climber the needed heavy lifting ability the ground person provides. A gin pole consists of 3 basic parts: (1) a pulley assembly to provide mechanical advantage when lifting, (2) a pole to gain height needed for the lift, and (3) the clamp assembly to attach everything to the tower. Typically the ground person does the heavy lifting, while the tower person above has the freedom to guide and fasten the tower and antenna components together. To use a gin pole, assemble the clamp and pulley on a 2 inch o.d. pipe 10 to 15 feet long. To erect a tower, first install a tower section on the concrete pad and attach the gin pole on the upper part of this section. Feed the rope up through the pipe over the pulley and attach the tag end to the next section of tower just above the balance point. Raise this section up over the first section by pulling on the gin pole rope and attach it to the bottom section with fasteners. Repeat this process until the tower is erected, then use the gin pole to lift the rotor, mast, and antennas into place. The pulley can be adjusted to any desired height by loosening the clamp t bolt and sliding up or down the pipe to help install these components. Always pull the load up against the side of the tower to minimize the stress on the tower and the gin pole. When a high lifting angle is used to raise the load (to clear trees, obstructions, ect) , the stress put on the tower and gin pole pipe could become severe and possibly uncontrollable. This method is as dangerous as using a power winch or vehicle to raise tower sections or antennas and have a binding situation occur that goes unnoticed until the force becomes excessive and a failure in the tower, gin pole or lift line. IIX gin pole kits are designed to lift loads using human power and should never be used with any type of mechanical power. Proper use of a gin pole provides a controllable and safe method to erect and maintain a tower and antenna assembly, use it! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Hammett Sent: Tuesday, June 05, 2007 11:37 AM To: WISPA General List Subject: Re: [WISPA] Want a bucket truck? Is a gin pole something one could construct (well, everything is depending on how skilled you are) or is it a purchase-only item? How much would one cost to purchase? - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com - Original Message - From: "Ralph" <[EMAIL PROTECTED]> To: "'WISPA General List'" Sent: Tuesday, June 05, 2007 10:53 AM Subject: RE: [WISPA] Want a bucket truck? Why would you have used a crane to stack it if you had not had the fire truck? Normally you stack by sections using a gin pole. It is very dangerous to stack a Rohn25 in multi sections. Just curious Ralph -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Delp Sent: Tuesday, June 05, 2007 9:09 AM To: 'WISPA General List' Subject: RE: [WISPA] Want a bucket truck? Mike, It was a pleasure talking with you at MUM. We have a 105 foot Ladder truck that used to be in service at Springfield IL FD. It has a lifting capacity of 750 LBS. We do not use it for site survey's, we have two bucket vans for that. It is a portable tower, and we utilized it as a tower, last yea
[WISPA] Gin Poles/Rohn 25 tower erection
Rohn sold them. They marketed it as an "Erection Fixture". I prefer Gin Pole. You can buy the top piece with the pully and the bottom clamps from http://w9iix.com/ii8.htm They are about $230.00 and you can supply the mast or buy it. It is a 2"OD pipe (aluminum or steel) We have one with a real heavy duty mast, but it is too heavy. I would use a thinner walled pole next time. There are pics on the site of how to use the pole. It is really quite easy. I had a home made gin pole once too, til someone borrowed it and wouldn't return it. If I get time, I will document how it was made. It was very cheap. Ralph This is some of the text from the site: THE GIN POLE, Here at IIX EQUIPMENT, many people ask: What is a gin pole? Why use a gin pole to do tower work? How do you use it? Well, lets talk about it. The foremost consideration when performing tower and antenna work above ground level is HUMAN SAFETY. A gin pole, or raising fixture, provides this safety by giving the tower climber the needed heavy lifting ability the ground person provides. A gin pole consists of 3 basic parts: (1) a pulley assembly to provide mechanical advantage when lifting, (2) a pole to gain height needed for the lift, and (3) the clamp assembly to attach everything to the tower. Typically the ground person does the heavy lifting, while the tower person above has the freedom to guide and fasten the tower and antenna components together. To use a gin pole, assemble the clamp and pulley on a 2 inch o.d. pipe 10 to 15 feet long. To erect a tower, first install a tower section on the concrete pad and attach the gin pole on the upper part of this section. Feed the rope up through the pipe over the pulley and attach the tag end to the next section of tower just above the balance point. Raise this section up over the first section by pulling on the gin pole rope and attach it to the bottom section with fasteners. Repeat this process until the tower is erected, then use the gin pole to lift the rotor, mast, and antennas into place. The pulley can be adjusted to any desired height by loosening the clamp t bolt and sliding up or down the pipe to help install these components. Always pull the load up against the side of the tower to minimize the stress on the tower and the gin pole. When a high lifting angle is used to raise the load (to clear trees, obstructions, ect) , the stress put on the tower and gin pole pipe could become severe and possibly uncontrollable. This method is as dangerous as using a power winch or vehicle to raise tower sections or antennas and have a binding situation occur that goes unnoticed until the force becomes excessive and a failure in the tower, gin pole or lift line. IIX gin pole kits are designed to lift loads using human power and should never be used with any type of mechanical power. Proper use of a gin pole provides a controllable and safe method to erect and maintain a tower and antenna assembly, use it! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Hammett Sent: Tuesday, June 05, 2007 11:37 AM To: WISPA General List Subject: Re: [WISPA] Want a bucket truck? Is a gin pole something one could construct (well, everything is depending on how skilled you are) or is it a purchase-only item? How much would one cost to purchase? - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com - Original Message - From: "Ralph" <[EMAIL PROTECTED]> To: "'WISPA General List'" Sent: Tuesday, June 05, 2007 10:53 AM Subject: RE: [WISPA] Want a bucket truck? Why would you have used a crane to stack it if you had not had the fire truck? Normally you stack by sections using a gin pole. It is very dangerous to stack a Rohn25 in multi sections. Just curious Ralph -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Delp Sent: Tuesday, June 05, 2007 9:09 AM To: 'WISPA General List' Subject: RE: [WISPA] Want a bucket truck? Mike, It was a pleasure talking with you at MUM. We have a 105 foot Ladder truck that used to be in service at Springfield IL FD. It has a lifting capacity of 750 LBS. We do not use it for site survey's, we have two bucket vans for that. It is a portable tower, and we utilized it as a tower, last year when we had two towers damaged by tornados. We had it refurbished by a truck center near her, and it is up to NFPA standards on the ladder operation. There is not a generator yet, as we are looking for a diesel generator. (all of our generators are gas) It has around 35K miles, and it is a 78 model. I will post a pic when I get in the office later today. I have used it's lifting capacity to stack a 120' Rohn 25G tower in two sections. It was really helpful in stacking that tower in an afternoon without a crane expense. Mikermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wire
