Lifting a 60ft tower with a hand crank.

Подписаться 170

Просмотров 40 тыс.

50% 1

This video is 2 years old and the tower has been up since then. imgur.com/a/pD7jOoL
Answering some questions/comments that keep coming up:
1 - Yes, we put the tower up with antennas after this.
2 - Everything on the other side of the antenna is downhill/wooded. No room to run a truck.
3 - If there's a next time we will try running the pull cable "through" the tree using a sling, so the tree only acts as fulcrumm. Then we don't have to worry about the stress on the tree itself, which was the biggest concern. We also have done some driveway work, so we might think a crane truck will be able to make the trip.
4- At no time were we "under" the suspended tower. That was rule #1. My friend with the board walked alongside the tower, sliding the 2x4 boards as we went.
Original description:
This is a US Towers aluminum tower, we are doing a test lift before attaching antennas and going official. The base is attached, it will be "hinged up". Official weight of the tower is 265lbs, but it works like a lever and multiplies the force needed. Can it be done by hand?
(SPOILER: Of course it can).
I made use of a "crane scale" which can measure up to 2000lbs. This was a game changer. I could track the pull force at every step of the way. Rather than an electric winch with unknown pull, I went with a 3/4 ton (1500lbs) rope puller. Everything else was rated at 1Ton (2000lbs) or higher.
Keep in mind the weight at the scale, is doubled at the tree's pulley. The rope puller only has to pull half the weight, but the tree has to handle all of it.
Tools Used:
Maasdam 3/4 Ton Rope Puller with 100' of 1/2" rope, amzn.to/3zZ0BaQ
Mophorn Hanging Scale 2000LBS, amzn.to/3DHGiB8
Mophorn Wire Rope Swaging Tool, amzn.to/38EsMjA
Crescent 28" Wire Rope and Cable Cutter, amzn.to/3DR99TC
Supplies Used:
Stainless Steel Cable 1/4 Inch, 200ft 5780lbs, amzn.to/3l0z2bf
Aluminum Loop Sleeves Cable Crimp, amzn.to/38HuG2N
Pulley/Snatch-block 2Ton, amzn.to/3tePFU6
D Ring Shackle, 2Ton capacity, amzn.to/3teXvx7
Steel Connecting Links 7100 lbs, amzn.to/3DZzj6W

Опубликовано:

5 сен 2021

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 49

@rayhill7613 2 года назад

ROPE ! I helpped a buddy lift his 75' tower. We chained his jeep to the bottom of a tree and used his jeep winch and a winch pole to raise it. Quick easy and alot safer.

@jpmiller8098

As others mentioned a gin pole or an A frame with a pulley at the top would increase your mechanical advantage. You would be pulling nearly directly up when the tower was horizontal with about 200 lb force. Then when the middle of the tower was up about 16", the A frame would fall away but the force needed to continue hoisting would be reduced by then to about 200 lbs.and diminishing as the tower goes vertical.

@sethlavinder 2 года назад

I tried to buy this very model tower from a local SK, many locals came to help get it down and we struggled for days to get the sections apart and eventually had to give up. I was surprised how each section sits down into the one below, leaving the joints facing up to absorb the 30 yrs of WV weather it had stood through. Sadly the project was abandoned and the tower was eventually cut up and sent to scrap. We were able to get it apart into two sections but that was separating the top 2 leaving about 40' in one piece, just no way to had transported it! I did buy the TH-7DX beam and HAM-IV rotor that was on the tower, maybe one day I will realize the ham dream and get that beam up! But for now the idea of a 60ft free standing is just gonna have to be just that, a dream!

@rayhill1855

Rope come-a-long scary at best.

@AvocaSingleTrack 2 года назад

You need to be pulling from a higher point. Most of your pulling force is going thru the tower straight into the ground. You can put some sort of "A" frame back farther and lift over it to get that height. Nice tower.

@mktwatcher Год назад

Did you have a pulley at the Tree? You should have used a system of pulleys (Block & Tackle) to get a force multiplier. It would go slower but the Crank Ratchet would have less force on it.

@hopefuldad Год назад

Holy cow dude! You’re strong!!!

@miguelsalami Год назад

Back in the 80s I use to walk & stand up by myself a 40ft galvanized hinged steel free standing Rohn Tower with a Super Penetrator 500 on top.❤

@beyondmiddleagedman7240 2 года назад

You should look up a "gin pole". I routinely lifted and lowered the 30’ mast on my sailboat alone using a gin pole and a self tailing winch on the cabin top. Will greatly reduce the load on the lines. It keeps the sling angles half of what you are doing.

@timm2020 Год назад

2000 pound electric winch should do just fine.

@mattirae4191

Buy a 12000lbs off road recovery winch and solid cables and stop playing 😊

@richardcallihan9746 Год назад

A chain or etc. between two of those trees approx. 90 degrees from the pulley, with the come-along in the middle of the chain, would greatly increase the lifting advantage over the

@victorg9259 Год назад

The longer it's in suspension the more dangerous it becomes to the poor guy pushing it with boards and this guy cranks slow slow and barks orders vs concentrating on cranking

@DaveTheBigTomato Год назад

If the tree gives out your friend will be smashed. Stand clear at all times.

@Steve-vo2vq 2 года назад

Put some tension on a come along between that tree and a tree behind it

@robinbrown7019 2 года назад

Winch is a toy for that tower

@woodyw6933 2 года назад

the strain on the tree is TWICE THE INDICATED STRAIN. a straight pull would be better passing the line thru the tree instead of using it as an anchor, Woody