Machine tool repair and rebuilding

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I was given a derelict, Italian made cold saw by a very generous customer who owns an aviation repair shop. He could no longer use the machine as the guard was broken. I sat on it for years  and finally got the thing wired up to see if it even worked, it works just fine except for the coolant pump which seized up and is very obsolete. Without coolant the very expensive blades do not last at all.

I finally had enough of a lull in customer work to put some work on this machine. The guard was held on with a plastic collar. This collar has to have a quick release to make changing the cutting blade easier and it had to be fairly compact to maximize the cutting area of the blade. I found a grinder guard with a nice over-center release mechanism I could re-purpose and put in a day of labor and head scratching to build this aluminum collar with a double jointed hinge that works very well.

With the mechanical pump being obsolete, I could have repaired it but chose to install a more modern electric coolant tank and foot pedal switch. I drilled and tapped the base for a fitting in the back of the original sump and fabricated a new tray to mount the new Little Giant sump pump. I then enclosed the front and sides of the cabinet with 0.060″ aluminum panels held on by Dzus fasteners in case I need to get access to the pump. The panels should keep the majority of the dirt and grime that makes my “dirty room” what it is.

Notice the small foot switch inside the cabinet. I sourced that from Mc Master Carr for $25.00.

The original cover for the coolant reservoir was broken and filthy. I tried to save it but gave up and sliced up a section of 1/4″ aluminum and machined the sump tray on one side and punched a few holes in it to mimic the stock cover. Also needed to make some hardware to hold it down tight.

And it’s ready for service!

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