testing restored Klaeger Fortuna hacksaw
3,439
Published 2020-10-17
I did not attempt a perfect full "like new" restoration. A few parts had to be replaced and after removal of the old paint I gave it a new Mipa 2K PUR paint.
As 3-phase power is not available in my basement workshop, I run an old 1.1 kW 3-phase motor with a 50 ”F phase shifter capacitor as a 3-phase converter (basically a Steinmetz circuit).
I tried to operate the 370 W motor of the saw with single phase power using the Steinmetz circuit. However the torque was insufficient to start the motor in some situations.The 3-phase converter solves this problem perfectly.
During the video editing I realized that the eccentric drive wheel should run counterclockwise. The saw works anyways, but the issue will be fixed.
00:10 original condition before restoration
00:25 state after restoration
00:35 3-phase motor operated with single phase and 3-phase converter
01:25 setting up for a test cut
02:17 starting the 3-phase converter (idler motor)
02:25 starting test cut
04:45 auto-stop when cut is finished
04:50 done
All Comments (10)
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Machine shops have nice cross-rhythms in them and the smell of cutting oil is a kind of perfume đ
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Very simple 3 phase conversion, nice...great looking machine too
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Hey Harald, very nice restoration. If you want the saw running in the right direction just swap phase L1 and L2. Looks better :) That directional arrow is on every Fortuna saw because there where models with a liquid cooling pump attached, this obviously needs to run the right direction. I got one with this pump
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The direction of the motor is really important! It won't cut very fast when it's turning in the wrong direction. Nice saw! I just found one of these today....needs a bit of work...
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Oldtimer Charm
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Hej Harald, I am beginning the same restauration project so I am very glad you already made this video. Sadly the previous owner lost the adjustment weight on top, may I ask how much your weight does weigh?
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Does flipping the orientation of the saw blade mitigate the rotation?
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Hi Harald, is it possible to send you this KlÀger Fortuna to do the restauration? We have the same one and looking for someone who can do it. Maybe you can contact me.
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Top, Maschinchen, tut seit x Jahren bei uns ihren Dienst... sieht nur nicht si schön aus...
