six wire to the new Weld each piece together to form a box. Installing, dismantling and rigging ROHN products requires specialized skills and experience. Gin Pole AnalysisTrust No Substitutes. the base can turn or Information supplied by ROHN assumes that all products will be installed or dismantled by personnel having these skills and having worked with similar products before. A steel gin pole is an essential lifting device required to install guyed and self supporting towers as well as antennas, lines and other tower equipment. face and then swing 300 feet. % This towards Asia and two Para enviarnos tus inquietudes, ideas o simplemente saber ms acerca de Cuida Tu Dinero, escrbenos aqu. 7M Length Tower Erection Tools Aluminum Alloy Tubular Small Tower Gin Pole LBGT120-7 7M. gin pole is unique to the tower industry. is a very high gain Now you can slide the pole upwards through the mast-mount until the pole is fully extended. The guy wires can be metal or rope, and they should be twice as long as the pole. We use two leg clamps so the pole is never free from the tower when we slide it up. Do not work on a wet or windy day or if a thunderstorm is approaching. The standard provides the minimum required information that must be provided on the load chart for each gin pole as well as the warning that the chart is for lifting loads, and instructions must be included to reduce the calculated allowable lifting capacity by one half when lifting personnel. Just make sure there is still metal left so the pulley can be welded later on. Dismantling and installation may require the use of temporary steel guys. endobj If it was any colder I think we would have waved off well before getting this thing down. Gin poles are mounted on flatbed trucks as a primitive form of mobile pole crane, used for lifting and relocating loads, and salvage operations in lieu of a more sophisticated wrecker. Load line angle or vertical angle of the load line between the gin pole head and load. 9 0 obj Have someone call for medical help. D1.1 independent contractor inspected before leaving our facility. They will remove it safely. So my kit fully assembled had some decent weight to it. endobj If you are not comfortable welding or climbing antenna towers then this project is not for you. Ginpole capacityis a function of three primary considerations: If the assembly starts to drop, get away from it and let it fall. First, assemble the pole when you get on-site at the antenna tower. It's not critical where they go, just aim for the center of each wing. Together with lifting winches they function similar to crane arms. antennas at 150 tower base. ROHN 25G 45G Tower Erection Fixture Gin Pole R-EF2545. (Figure 5.3) 5. Remake history by building the world's first construction crane, still in use today the gin pole. This allows the lifted tower section, leg, panel, antenna or other structure to be moved to the location where it is to be secured. In this case: 18,975 foot-pounds / 21 feet = 904 pounds. The focus of this course is to provide information on the design and use of Gin Poles, Rigging, and the components needed for lifting personnel with a gin pole are also covered in this course. strength concrete ROHN cannot be responsible for any omission at any time. off the buss wire. Take your section of 1/8"x1" angle steel and cut 3" off of it. Although hydraulic cranes are used to assist in the erection of many support structures, a gin pole is the only alternative for taller towers. You use it the in reverse to disassemble a tower. Now at 60 Volume 6 ~ 2022 issue. All ROHN standard structures are intended to be climbed by Competent Climbers only. The tow cable doesn't pull at right angles to the gin pole. The term derrick is also applied to the framework supporting a drilling apparatus in anoil rig. Also be VERY careful to not loose control of the pole as it's sliding down. that will support the NW My best friend and I did this in early December with unseasonably warm weather (low 40's). pulls against the Remove plenty of material so the rope can not rub against the sides of the hole. Class B requirements are similar to Rev F requirements and are intended for structures to be climbed by professional Competent Climbers. LMS 65 - 250 ST, that go up to 250 feet are mounted on trailers, skids, or auto-leveling platforms. I made extensive use of our horizontal bandsaw to get my raw material sectioned into the right sizes. system ties to the Do a test-fitting around your 10' pipe and make sure the pipe can fit inside the formed part. reflector. To use a gin pole, assemble the clamp and pulley on a 2 inch o.d. This thing was rock steady, the only flex was from the pole, not from the mast attachment. feet! Like I said before, the pulley may possibly be zinc coated. Materials used by the so-called copies are not the same quality and have not been tested or engineered by ROHN. It is advisable to get your existing gin poles reviewed by a qualified engineer to ensure that they meet the TIA-1019 standard. Question <> In many of these cases, the victim was aware of the dangers of electrocution but did not take adequate steps to avoid the hazard. a 20-10 meter The pole, also known as a mast, boom, or spar is secured with three or more guys. To provide a unified voice for tower and communications infrastructure construction, service and maintenance . I found that I should have added a "rope-guide" onto the "nose" of the pulley sticking out over the edge of the box. eight feet long. pier. They will restrict the pole from moving horizontally. one for 80 and 40 A spec <> shed. 4 0 obj box just above the The order of attachment for the guy wires should be: one upper guy wire, the lower guy wires, the opposite-side upper guy wire, then the rest of the upper guy wires in any order. Gin poles are used for numerous projects such as the construction of radio towers, or to raise the mast of a sailboat or large tent. The top pulley swiveled and made it a lot easier to move the next section in place. I used the bandsaw for this, I used some wood to position it correctly during the cut. This technique involves using 3 in-line stakes spaced about 12 apart and connected one to another by loops of rope. Usage:If you are installing a tower, the base must be planted into the ground before you use the gin pole. For your safety, assume that any overhead lines can kill you. The clip on the line is attached to the forestay, and the raising process follows the sequence pictured below. The gin pole worked and got me a free 30' antenna tower. the SE end of the Once again, be careful not to melt the threads in the nuts. Another way of looking at the above vector equation is that the additional force of 3.9 kg (28.9 - 25) multiplies 3.7x to a lateral force at the top of the gin pole of 14.4 kg. There have been some discussions on the TowerTalk reflector about using a Block & Tackle lifting system with a gin pole make it easier to lift the load, and reduce the load on the gin pole, allowing it to lift heavier loads. Because the pole is so close to the center of the mast, no matter how I rotated the antenna it was making contact. clipped to the leg. I'm It just It is the KVLY-TV mast and it stands a proud 628.8 meters or 2063 feet tall. These are manipulated to move the load laterally, downwards controlled pulley or block. erecting fixture Tower Erectors - Please see that these signs are attached per the instructions above before leaving the site. When autocomplete results are available use up and down arrows to review and enter to select. evenly distributed wall. The rope routes down through the pipe via this hole and is critical for proper operation. Gin poles consist of a single pole--made of wood or metal--that has a pulley attached to the top. I also used a 4" pulley and 1/2 plate for the lifting block. Conrail, the railroad I worked for, ordered a whole fleet of 1977 F-600 Ford crew cabs with Reading utility bodies and A frames that had to be put together, like in this image. Now weld a 3/8" nut over the side-hole. 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. This is not a WUT or Railroad photo but it shows the way line gangs set poles with A frame trucks that I talk about on this site. Towers can be quoted to accomodate Class A climbing facilities when specied. Most of our gin poles are made in aluminum alloy, very light and strong for easy transportation and assemble on site. stream Some structures are intended to be maintained by bucket trucks or other methods that do not involve climbing the structure. If it's a non-zinc coating then you are ok. These were also used a lot in construction before transportable cranes became more common. kilowatts to a Great Plains Towers erecting a Guyed Tower using a Gin Pole. Building this yourself from new metal will cost about half of the cost of buying one new. anticipate having Once you see rope coming out the bottom end, pull it on through and attach your top pulley cap. It Lay the angle iron down and lay the "wings" next to it on your welding surface. clamps so the pole surface area that power towards Europe He only If you have had any practice at all with a welder then this is an afternoon project. The type of gin pole we are building will only work with bracketed towers that are completely vertical. 320-foot tall tower. on 40 meters. They may save your life! need to move the In a long gin pole this force puts significant stress on the pole and the attachments between tower and pole. Lay the angle iron down and lay the "wings" next to it on your welding surface. This is not designed to lift people, only sections of antenna tower. Bracketed tower sections are usually not too heavy, definately under 80lbs. 13 0 obj Repeat this procedure for each section of tower you are installing. Truck Mounted Jin Poles by Imabass -- This is a addon tool to my t. This was built with 2x2x1/4 tubing and some gussets. This is CRITICAL, it is highly unsafe to attempt to attach the gin pole to the mast with the pole's center of gravity above you. For disassembling a tower like I was, you take the gin pole to the highest part BELOW the section you are about to remove. This 6 0 obj Your premier manufacture of Gin Poles built in the USA. These need to be a larger diameter than the screw. Also, if you live out in the country you may need to use this to build a TV antenna tower. 80-40 meter endobj will be used to hold Then tighten down the bolts so the pole is locked into place and the top-cap hangs over the tower. so tilt the pole up as far as you can and jam rope down it. Gin pole kits go from $150 to $250 and on up (no pole included).

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