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Don52
Don52
Senior Member
Last Activity: Today, 01:04 PM
Joined: 10-17-2008
Location: Troy MI
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  • I often put plywood on top of the wire shelving to keep small stuff from falling through, so I just used a hole saw to drill a hole through the plywood to support the swing arm. I used a radiator clamp to hold the swing arm and a washer to minimize wear on the plywood.

    6. Mounted swing...
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  • Don52
    started a topic Swing Arm for LED Lamp over Lathe

    Swing Arm for LED Lamp over Lathe

    For the past three years I have been working on an addition to the back of my garage. Recently I have begun moving my machine tools into the addition, which is nearing completion. My lathe in its original location had a large shelf above it, with a 4' light mounted below it. The lighting was so good...
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  • Don52
    replied to Service Jack Repair
    Thanks for all of your comments.

    -Don
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  • Don52
    replied to Service Jack Repair
    The last step was re-assembling the jack with the new spring guidance can. If you didn't know any better, you couldn't tell the new can from the old one.

    14. New can installed


    And here is the jack all done.

    15. Jack all done
    ...
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  • Don52
    replied to Service Jack Repair
    So the way it works is that the spring pushes on the new can. The new can pushes on the original washer, which has a counter bore on the top which holds a clip ring. The clip ring pushes on a groove in the piston. When you push the jack handle down it compresses a piston, which lifts the load. When...
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  • Don52
    replied to Service Jack Repair
    The next two pictures show the new washer welded to the EMT conduit.

    7. Washer welded to EMT conduit


    8. Penetration of weld on back side


    Next I pressed the original washer into the top of the new can.

    9. Original washer installed...
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  • Don52
    replied to Service Jack Repair
    The can was originally made by rolling over the edge of a cylinder to trap a washer.
    We decided to make a new can by welding a piece of 1-1/4" EMT conduit to a new washer to simulate the rolled over edge and to use the original washer on top of the new washer. I had to soak the EMT conduit...
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  • Don52
    started a topic Service Jack Repair

    Service Jack Repair

    I borrowed a service jack from my friend John's son, to help us move the machine tools into the new addition, Just about the time we were finished using it, the jack wouldn't raise, when you pumped the handle. Upon inspection we noticed that the screw that attached the handle to the jack had become...
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