Can you explain how you get a new section to come up, and then get it mounted on the previous section?
It's really easy (after a
little lot of practice)
The gin pole (a 14' long, 2" od, 1/4" wall aluminum tube with a welded on pulley at one end) is clamped to a tower leg as high as possible on the last installed section. The 1st section was installed 3-1/2' into the ground in a concrete block. Test set up on the 1st section.
There is an adjustable clamping mechanism that holds the pole, allowing it to be slid up or down while clamped to the tower. Normally you want it as high as possible but for moving it up to the next section we drop it so the tower clamp can be easily attached then its slid up.
For the 2nd section we didn't push it up all the way but all the others were. The sections are 10' long.
A rope goes through that gin pole pulley and down to the section. The other side of the rope goes down to a snatch block pulley I have connected to my tipped over ballast box (with extra weight on top of it - the tank is filled). In the pic above you can see the rope going back to the tractor by my right foot. My orange buddy is barely visible in the background. The tractor does all the bull work.
The bottoms of each leg have welded on couplings with 2 bolt holes. The next section is maneuvered over the previous one and slowly lowered so the couplings engage the straight legs of the lower section. Align the bolt holes (appropriate punches are more than useful with a dead blow hammer), slide the bolts in, nut them up and snug them down.
A simple pulley is attached at the top of the new section and a rope going to the ground is attached to the gin pole. The man on the tower lowers the gin pole in its fixture, unbolts the gin pole from the tower and the ground crew pulls up the gin pole to the top of the newly installed section.
Tower man then bolts the gin pole fixture onto the leg. He then slides the pole up as high as possible, clamps it tight and we are ready to pull the next section.
You want the man on the tower doing the absolute minimum amount of work. Pretty much all the lifting is done on the ground.