Pete.
Member
- Messages
- 14,139
- Location
- Kent, UK
I got this mechanical hacksaw recently and my goal is to spend this weekend making it go (and stop) properly. Not much to it really it houses a 1/3HP hoover 3 phase motor with double-reduction belt pulleys that drive a simple crank which acts on the sawing arm via a connecting rod. It has a robust vice with adustable 'fixed' jaw which can be moved on a screw and set for angle cutting. The only other features are a rudimentary adjustable damper and large bakelite microswitch for auto cut-off.
My intention is not to spend too much time on this machine. It's getting stripped, serviced and a spalsh of paint. The motor sadly is 415v-only so I'm going to change that . The Hoover brand motor fitted has a lowish profile so options are a bit limited. I have a similar-sized single phase motor which I'll fit and hope it has enough guts. If not I have a more powerful one to go in but that will require surgery to lower the height.
The ram and bow came off easily enough. I was glad to see that tall of the pins and bushes were in good condition so they just need a clean-up and re-fit.
Here;s the motor. As you can see it's a bit snug in there. I was reading the description on the Lathes website and wondered why the 6" saw had such a more powerful motor than the 4" - I think this is why.
Electric cut-off switch. Stuck down in the 'off' position it turned out to be just gummed up with dried oil or grease. Didn't take much to free up and get it working smoothly again.
Last thing I did before packing up last night was clean up the well of the saw and give it a good coat of hammerite smooth red. Normally I wouldn't think about painting this early (and I'm not a fan of red paint on a machine tool anyway) but I want the paint to dry so I can fix bits back onto the saw as I do them I'd leave itun-painted but experience tells me that a good coat of paint will make the machine a lot easier to keep clear of swarf/filings.
My intention is not to spend too much time on this machine. It's getting stripped, serviced and a spalsh of paint. The motor sadly is 415v-only so I'm going to change that . The Hoover brand motor fitted has a lowish profile so options are a bit limited. I have a similar-sized single phase motor which I'll fit and hope it has enough guts. If not I have a more powerful one to go in but that will require surgery to lower the height.
The ram and bow came off easily enough. I was glad to see that tall of the pins and bushes were in good condition so they just need a clean-up and re-fit.
Here;s the motor. As you can see it's a bit snug in there. I was reading the description on the Lathes website and wondered why the 6" saw had such a more powerful motor than the 4" - I think this is why.
Electric cut-off switch. Stuck down in the 'off' position it turned out to be just gummed up with dried oil or grease. Didn't take much to free up and get it working smoothly again.
Last thing I did before packing up last night was clean up the well of the saw and give it a good coat of hammerite smooth red. Normally I wouldn't think about painting this early (and I'm not a fan of red paint on a machine tool anyway) but I want the paint to dry so I can fix bits back onto the saw as I do them I'd leave itun-painted but experience tells me that a good coat of paint will make the machine a lot easier to keep clear of swarf/filings.