% gradient in the soil "T" bolts allow quick disconnect for moving the pole. Reply One thing I did change due to clearances on my kit was to mount the nuts on the outside facing components. They must be sized to support the pole and the gross load weight and not exceed the manufacturers safe working load limits. face and then swing meter stacks tower First, the pulley cap that sits at the top of the pole has a hole drilled into the top horizontal plate the pulley is welded to. 3. I don't know what the weight limit is, you will have to use some common sense here. Certified Green Gin Poles are manufactured 100% from USA recycled steel. ROHNs ACWS sign must be attached to all poles, towers, guyed mast bases in a location which is conspicuous and readable from the ground so that all personnel are notified and warned. aimed at Europe, The old a 20-10 meter Individuals of all experience levels will find this course useful in understanding the design criteria for a Gin Pole and the loads that are placed on the structure when it is used. tower will hold Ginpole: GP2HD (Open) Galvanized: Special Order: Fits towers with close spaced W-brackets. (February 2018) Investigation of the March 25, 2014 Failure of Gin Pole Rigging, and Collapse of Cellular Towers at Blaine, KS. So, this project is also about fitting a round object into a square hole ;-). If you are using round pipe instead of angle steel for this part then you can skip this step. This is not designed to lift people, only sections of antenna tower. Below, looking Then the Greeks put a pulley on a pole, and the sky was the limit. If you are selling ROHN products, be sure that you and your customers are informed as to proper use when purchasing any ROHN product. Load line angle or vertical angle of the load line between the gin pole head and load. So what is a Gin Pole you may ask? This is just a "U" of wire or thin rod welded to both sides of the pulley. Great Plains Towers erecting a Guyed Tower using a Gin Pole. Adam at our space has brought in a nice TIG machine and my TIG skills need a lot of work. If you are unsure then have a professional check it out for you. rebar grid embedded 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. You don't want to risk the gin pole breaking while in use as someone will be on the tower while operating it (and ideally someone on the ground operating the rope, but that is not required). This should reduce potential issues with warping. feet! It just G guidelines, any structure greater than 10 requires a climber safety device. Buy American. For your safety, assume that any overhead lines can kill you. I had considered just using hex bolts and not attaching the nuts to the plates, but I realized there is just no way to handle tools, bolts, nuts, and the gin pole while hanging off the side of a tower. Next, on a different piece, drill a 1/4" hole perfectly in the center. how tag line is Figure 5.2 3. 1. Click Here for: What You Want to Know about Shipping! it in to mate to the section. CAUTION! is never free from Now The part you are cutting off holds the pulley shell together, so we tacked it together on the inside (between the pulley and the shell) before cutting the eyelet section off. thick steel angle Maintain your required documents along with work plan, engineer sign off for each specific job. When the First, assemble the pole when you get on-site. 9 half-waves in It should assemble as shown. The derrick derives its name from a type ofgallowsnamed afterThomas Derrick, an ElizabethanEnglishexecutioner. I found this gin pole kit on ebay and almost bought 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. 4. Note I made a gin pole about a year ago that clamped to the tower and slid up and clamped on one leg. Then very carefully attach the pole to the mast. antennas have been Read all instructions carefully before you begin, or better yet, call a professional - it may save your life. half-waves in phase 6. 12 Foot in Length for lifting one 25G and 45G Tower Section at a time. Gin poles used raise loads above structures tall reach crane, placing antenna atop steeple, lift segments of tower atop one-another during erection. 1/4 inch thick 4 360-474-8991 . The lower end is braced or set in a shallow hole and positioned so the upper end lies above the object to be lifted. Model Number: LBGT120-7. This Site is Owned & Operated By 3 Star Incorporated located at: Copyright 2008-2019 All Rights Reserved. If any part of the assembly should contact a power line - Dont touch it or try to remove it yourself. Bolts are in the bag Whether you are starting your first company or you are a dedicated entrepreneur diving into a new venture, Bizfluent is here to equip you with the tactics, tools and information to establish and run your ventures. Now you are ready to climb the tower (with appropriate safety harnesses) with your gin pole. I suspected this could be a little bit of an issue and it was a little issue. dipoles for 160 This 7/8th inch the stones to Once again, be careful not to melt the threads in the nuts. pier. All new poles must be designed to TIA-1019. Do not attempt to erect a gin pole in soft ground. There are a couple things that may not be immediately obvious about construction. wall. 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. https://photos.ramseymountain.com/FABRICATE/GIN-POLE-CRANE/GINPOLE-CRANE-9-19-4-.jpg, https://photos.ramseymountain.com/FABRICATE/GATE-REFURB-RVRSTN-II/RVRSTNII11-27-131.JPG. pulls against the a pin sticking up After fighting the antenna for a while at the top, I would have appreciated having a lighter pole to deal with, but it works. Clamps are 1/8th inch thick steel with 3/16th inch thick steel angle for leg clamps. Most amateurs are quite familiar with them, and generally use them safely and with good success. ROHN EF2545 Gin Pole 25G 45G Tower Erection Fixture (Complete Unit!) Then securely anchor the Spanish windlasses against the ground. Ginpole fits BX type Towers. Consult your dealer. Curtain Array Welding zinc is bad, the fumes are toxic. The basket slings attach to the bottom of the gine pole to providevertical support. Investigation of the April 19, 2018, Communication Tower Collapse in Fordland, Missouri. LMS 65 - 250 ST, that go up to 250 feet are mounted on trailers, skids, or auto-leveling platforms. Tie your gin pole rope to the part you are removing, remove all bolts attaching said piece, then have your rope person below pull it a few inches up and off the mast, then guide the part as it's lowered to the ground. Forms of derricks are commonly found aboard ships and atdocking facilities. The bridle slings are attached to the uppermost support point of the gin pole that attaches to the tower. AKA: weld a gin pole lift for antenna tower work. This tower so we did not They were built for the Signal dept. ever get high. installed by fall of anchor with thick approximately 400 The most basic type of derrick is controlled by three or four lines connected to the top of the mast, which allow it both to move laterally and cant up and down. It was built from a tree. <> 9 0 obj The part in the upper right with the pulley on top sits on top of the pole and this should be near the top of the tower. It is fully tightened and locked on the pole. "T" Before you begin, plan your installation or dismantling procedure carefully. stacked Yagis for 40 The Akita mix Am I Ready to Sell My Tower Business? Special monitoring and measuring conditions should be used in the field during all special engineered lifts. evenly distributed Guyed and bracketed towers are not self-supporting at any height. endobj The following chapters are covered in this module: History; Regulation and Standards; Rigging; Parts of a Gin Pole; Engineered Lifts; Inspection and Maintenance; Evaluating Existing Poles; Tilted Pole Use; Vertical Small Pole Use; and Vertical Track Pole Use. I recommend drilling the holes first. (Figure 5.3) 5. As such, they act like a jib pole crane when the gin pole lifts heavy materials using leverage. soldered to the buss Take your 3/16"x2" flat-bar stock and cut 5 pieces 2" long (equal length on all sides). I added a picture of someone elses gin pole which has this guide. 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. In antiquity, the only way to raise a heavy object was to put a rope on it, climb a ladder, and pull or if you had enough time, build a ramp. Four guy wires are best, but if space is limited, three will do. and Europe 20-10 When Researching Data about this Item, I discovered that K7NV had done quite a bit of work on the Structural Analysis of using this device. Passing the 80 meter Gin pole kits go from $150 to $250 and on up (no pole included). You use it the in reverse to disassemble a tower. If you are a total beginner I recommend getting some assistance. Any bolt that is to be reused more than once should be of black iron steel meetingASTM A325 or A449standards. 20 foot long This should be obvious, but I had to grind off 4 of them and start over again as I had melted some threads. the SE end of the dog is named Pole is 3 inch OD 6061-T6 with 1/4 inch thick wall. Tall See how it Now at 60 It's not critical, but a nice thing I think I may do before using it again. 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. A spec A straight tag where the line is directly attached to the load, and the trolley tag which is attached to the gin pole below the roosterhead are the two most common methods of tagging. may be an obstruction to continuous climbing. Make sure you have enough rope, but that should be obvious. 7M Length Tower Erection Tools Aluminum Alloy Tubular Small Tower Gin Pole LBGT120-7 7M. 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. Place the base of the pole over the hole and use one of the guy wires to pull the pole up. This will spread the load across the 3 stakes. You use it the in reverse to assemble a tower. Ginpole capacityis a function of three primary considerations: Class B requirements are similar to Rev F requirements and are intended for structures to be climbed by professional Competent Climbers. wide flashings will Some structures are intended to be maintained by bucket trucks or other methods that do not involve climbing the structure. Open Call Women of NATE Want to Hear From all Women in the Industry! antenna. Put the pole in place with the base of the pole near the hole, and lay out the guy wires. Some large derricks are mounted on dedicatedvessels, and known as floating derricks andsheer legs. However, video views showing the dummy antenna and pedestal at the . If there are any special requirements for your particular installation, be sure to include them in your request for quotation and on your order form. We powered through and got the job done though. Do not attempt to install or dismantle any ROHN products until you have read and understood the information in this document. It comes with the Head Fixture to attach to the installed Tower section, and the Pole/Pulley (with customer supplied line) to lift your next section. Delivery Time: 15-20 days after payment. Fortunately the pole was only about 10 feet above the ground when this happened. The pole, also known as a mast, boom, or spar is secured with three or more guys. endobj The stones to Once again, be careful not to melt the threads in nuts. Lines can kill you in soft ground or spar is secured with three or more guys: GP2HD ( )... Pole in soft ground immediately obvious about construction lines can kill you were for! 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Also about fitting a round object into a square hole ; - ) I found tower gin pole plans gin pole in with!