[TowerTalk] FW: Cutting 2" Heavy Wall Cr-Mo Mast Up on Tower

[Victor Walz]

I want to clarify the current situation of the mast relative to my
methodology and safety issues.

 

The 22 ft mast has been lowered in order to remove all the antennas.  The
top of the mast is currently 4 ft above the top of the tower.

The weight of the mast is supported at three support plates and a steel
support under the bottom of the mast.  My chain hoist is also supporting the
mast.  My intention is to use my heavy duty gin pole to lift the 10 ft
section from the top of the tower once it has been cut.

 

Thanks for all the input that I have received so far.

 

Vic,  N2PP

 

 

 

 

 

 

 

 

 

 

 

 

 of the current situation.

 

 

From: Victor Walz [mailto:n2pp at frontiernet.net] 
Sent: Saturday, July 26, 2014 1:47 PM
To: 'towertalk at contesting.com'
Subject: Cutting 2" Heavy Wall Cr-Mo Mast Up on Tower

 

I have a 22 ft (2" OD) heavy duty Cr-Mo mast presently installed up on a 100
ft Rohn 45 tower.  It weighs 200+ pounds. I previously had a 4 el 20 meter
yagi stacked 12 ft.  above a 40 meter F12  yagi.  I just finished removing
both antennas for repairs and have decided not to reinstall the stack due to
the complexity of the installation.    I will be re-installing the 40 meter
yagi and some VHF antennas on this tower.  Consequently, I would like to
shorten the 22 ft mast by 10 ft.

 

I am looking for advice on the most efficient way to cut this very thick
high strength mast in place.  I would prefer to use battery-operated tools
such as a reciprocating saw(metal blade?) or a grinding tool (cutting
wheel?).  I can run 120 VAC (about 200 ft extension cord) up the tower if
needed.

 

What would be the optimum method for cutting this mast without excessive
tower time?  Thanks in advance for any responses.

 

Vic,  N2PP