Aloris BXA Disassembly

Bamban

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Months ago I was gifted an Aloris BXA, the sliding gibs were pretty worn out that to lock a holder, the handle is close to 6 o'clock position. Aloris wanted 125 for the gibs and another 125 to install them. I got the gibs, and decided to do the installation myself. In retrospect, maybe I should have paid them, it took me quite a bit of time to file fit those gibs to sit in place for the cylinder screw to engage, and file fitted them some more for a brand new Aloris BXA tool holder to slide down the wedge. A surface grinder would have saved me lots of time.

Initially I was thinking about cross drilling a 5/8 bolt and press a pin trough it for special tool to go in from the top to disassemble the tool post. Rummaging through my bucket of nuts and washer for another project, I came across some washers for 1/2 inch bolts. I jammed a couple of them between 2 nuts and that contraption worked real well unscrewing the cylinder nut.

One thing I noticed the inside of the tool post was packed well with grease, so when I assembled the unit I gave the internals with a good coating of grease.

With the new gibs, the rebuilt BXA now clocks at about 4 o'clock when locking a holder, and with a well greased up internal, the handle operation is real smooth and solid.20181207_001832.jpg

20181106_174500.jpg
 
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One of the washers I used is a grade 8 and quite tough. The 2 washers were almost press fit to the slot, I had to tap them to bottom out. With the tool post clamped down in the 6 1/2 Wilton, with a big enough C clamp over the tool post I torqued the washers hard enough to not pop out, that I managed to loosen the screw with one whack from a 1 pound non marring hammer on the long bolt handle of the home made wrench.

Impact tends to loosen things up quicker than steady torque. With my initial plan using 5/8 bolt with a cross pin, I intended to use air impact wrench to loosen the barrel nut.
 
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Gonna have to rename mine 'The Stubborn Bee...'
 
I was pawing through my little collection of “shop made” tools just yesterday and could not remember what I had made a goofy looking two pronged tool for. So happy to read this thread and remember!

Remember to check the clocking of the handle as you reassemble. It’s easiest to do wrong, a little more awkward to do right.
 
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