crrmeyer
Stainless
- Joined
- Nov 10, 2006
- Location
- Southern California
I recently ran into a Miller Knuth 3167 Sawmaster power hacksaw. It must be an early one as it does not have the power switch positioned to turn off at the end of a cut. The power switch is mounted to the front leg casting under the vise handle.
After a bit of cleanup I installed a new Starrett 14x1 10tpi hack saw blade and tried cutting a piece of 1" angle iron. The saw cuts well but bucks upward as it relieves the spring pressure at the end of each cutting stroke. Now the Sawmaster is a bit different than other power hacksaws as it spring loads the hacksaw down on the cutting stroke and relieves some of the spring load with cam action on the back stroke. It does not actually lift the blade on the back stroke. Is this normal?
Also, an thoughts on oil should I used? The on-line manual is not specific regarding viscosity (such as would 30 weight non-detergent work?) But in certain areas they do want an oil with adhesives.
Thanks
After a bit of cleanup I installed a new Starrett 14x1 10tpi hack saw blade and tried cutting a piece of 1" angle iron. The saw cuts well but bucks upward as it relieves the spring pressure at the end of each cutting stroke. Now the Sawmaster is a bit different than other power hacksaws as it spring loads the hacksaw down on the cutting stroke and relieves some of the spring load with cam action on the back stroke. It does not actually lift the blade on the back stroke. Is this normal?
Also, an thoughts on oil should I used? The on-line manual is not specific regarding viscosity (such as would 30 weight non-detergent work?) But in certain areas they do want an oil with adhesives.
Thanks