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Thread: Crimper Repair

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  1. #1
    Join Date
    May 2008
    Location
    Troy, MI
    Posts
    324

    Default Crimper Repair

    My latest job was to fix a crimper for fittings for hydraulic hoses, with a bend stub shaft on the actuation lever as shown in picture 1. The way the crimper works is you manually push on the lever, which actuates an eccentric which crimps the fitting. The stub shaft kept bending, because the stub shaft was weakened by two flats on the shaft and a hole located in the high stress area. The original stub shaft is shown in picture 2. My buddy asked me to weld it up. Instead of welding it up I decided cut off the old stub shaft from the tubular handle and replace it with new one, which I turned on my lathe. The new stub shaft that I made and the original tubular shaft are shown ready for welding in picture 3. A close up of my weld is shown in picture 4 and the crimper with the new shaft is shown in picture 5. The new shaft has considerably more cross sectional area so I am hoping that it will hold up. When in use the crimper is clamped in a vise so it does see a huge bending moment.
    Attached Images Attached Images

    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

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