morrisman
31st Jan 2016, 07:32 PM
I bought this some time ago , a swap meet find. Its been sitting around so I decided to get it running .
The motor required new bearings . The main problem with the saw itself has been worn out shafts and oval shaped holes where the shafts have been rotating .
I reamed out the badly worn bores in the casting where the lower shaft runs , I installed bronze bushes and am using a length of 4140 for the new shaft . I made the pilots for the adjustable reamer , rather like doing a king pin job on an old car. The two bushes have to line up perfectly . The original shaft was 22mm but I had some 7/8" bushes so used them .
The upper shaft uses two long steel bushes , rather odd but one must expect oddities as it is a Chinese made machine , these upper bushes are worn badly , steel on steel isn't a good idea. I plan on using cast iron bushes , hopefully these wont wear as much
The saw has a crude but effective hydraulic device for lowering the blade as it cuts , and a little suds pump . Lots of fiddling about on a job like this . The drive to the blade frame is done with 2 helical gears
I believe there are lots of these saws around, with many different brand names .
The motor required new bearings . The main problem with the saw itself has been worn out shafts and oval shaped holes where the shafts have been rotating .
I reamed out the badly worn bores in the casting where the lower shaft runs , I installed bronze bushes and am using a length of 4140 for the new shaft . I made the pilots for the adjustable reamer , rather like doing a king pin job on an old car. The two bushes have to line up perfectly . The original shaft was 22mm but I had some 7/8" bushes so used them .
The upper shaft uses two long steel bushes , rather odd but one must expect oddities as it is a Chinese made machine , these upper bushes are worn badly , steel on steel isn't a good idea. I plan on using cast iron bushes , hopefully these wont wear as much
The saw has a crude but effective hydraulic device for lowering the blade as it cuts , and a little suds pump . Lots of fiddling about on a job like this . The drive to the blade frame is done with 2 helical gears
I believe there are lots of these saws around, with many different brand names .