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| Titivating a Warco Mechanical hacksaw! |
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| awemawson:
Good progress Matthew :thumbup: I'm sure that the down feed of the hacksaw was originally tweakable with some sort of variable throttle on the oil escaping from the big pot, and the little pot is pumped by a cam that raises the saw on the reverse stroke. (Can I respectfully suggest a couple of things? a/ put loctite on your grub screw that retains the spring (or centre pop it) and b/ use a board under your work when sawing in the lathe to preserve the ways - I've seen too many ex-school lathes with saw nicks in them :bugeye:) |
| Fredbare:
Well done Matthew John |
| Biggles:
Well done Matthew, but i want the mobility scooter. :drool: :lol: |
| mattinker:
--- Quote from: awemawson on February 10, 2017, 10:23:49 AM ---Good progress Matthew :thumbup: I'm sure that the down feed of the hacksaw was originally tweakable with some sort of variable throttle on the oil escaping from the big pot, and the little pot is pumped by a cam that raises the saw on the reverse stroke. (Can I respectfully suggest a couple of things? a/ put loctite on your grub screw that retains the spring (or centre pop it) and b/ use a board under your work when sawing in the lathe to preserve the ways - I've seen too many ex-school lathes with saw nicks in them :bugeye:) --- End quote --- Thanks Andrew, Yes, your absolutely right about the plank on the ways, I usually do!! The grub screw can't escape, it's up against the bottom of the hole, it's there to stop the spring falling out when it's being installed! I've been all over the reservoir, there no threaded holes that I can see that could have contained an adjuster screw. The only port into the larger chamber is through the bottom, the small piston has a hole half way up it's stroke which vents oil to the reservoir, in doing so it allows oil to escape from the large cylinder, which allows a drop in the height of the blade! I'd love to find an adjuster screw! The adjustment seems to come from the screw that adjusts the stroke of the small piston following the cam. I am still cleaning and painting, it'll be clearer when it's back together! All the best, Matthew. |
| mattinker:
--- Quote from: Fredbare on February 10, 2017, 11:14:29 AM ---Well done Matthew John --- End quote --- Thanks John! |
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