I'm upgrading my 25G tower to 45G. If I can get all the hardware ready, this
looks like the perfect job to make efficient use of a crane. I'm considering
the possibility of assembling the 45G on the ground, lowering the 25G and
raising the 45G in one short crane visit. The towers are 85 feet and guyed at
three levels. The base is a pier pin. I would plan to move the mast and the
existing guy wires from the old tower to the new tower as soon as the old tower
is on the ground.
I'm looking for specific instructions on what crane to rent, and how I should
instruct the rigger to take the 25G down and how to put up the 45G without
damaging/buckling either tower.
1. Should these operations be done in a single lift or more?
2. Where and how should the rigger attach to the tower?
3. What should be done differently for the 25G versus the 45G?
Thanks for your thoughts.
Jim Idelson K1IR
PS From the responses to my recent post about installing a ring rotor, I sure
hope to have the ring installed and operating properly on the top section
before the tower is lifted.