Harrison M300


I have a Harrison M300 lathe in my garage.

Having serious problems with the Feed gears ("RST", "UVW", "XYZ"); some do not engage. Does anyone have experience this ?

While trying to see if I could do anything, I took off the knob attempting to take out the spindle. The ball end of my alen key snapped off in the head of one of the bolts. I do not want to drill it out, but all my efforts to get the broken piece out have failed.

Can anyone advise me ?

I am in the Reading area (RG2 8JP)


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In message , BobTheBowler writes

Your nearest model engineering group is the place to request both highly experienced and local assistance. Their contact details will almost certainly be available in the local library if not on Google. The group will probably be members of or affiliated to the S.A.M.E.S [Southern Area Model Engineering Society] These guys will undoubtedly be able to sort out the problem with the gears for you too.


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Post this to plenty of people there use the M300. Have you tried moving the broken end with a neodymium magnet?


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Ken Parkes

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