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  1. #1
    Join Date
    Sep 2021
    Location
    Toowoomba
    Age
    72
    Posts
    7

    Default HEBCO Grinder refurbishment

    Hi All This grinder was acquired by the previous owner for scrapping and he already scrapped the copper from the motor The grinder was not in good shape as per the pictures below. The motor was missing but the end casings were there. Most of the bits were there but rusted bent or broken. It stood in my yard for a while while my workshop was built, and the project bubbled up to the top of the pile. The first hurdle was getting the arbour nuts off the arbour as they were severely rusted on. Lots of beatings happened to no avail. Lots of rust products were tried to no avail. I let is stand for a while then hit it with MAPP gas and a big rattle gun and it came free for both nuts. Then i had to remove a bearing from one journal so i could feed in two new drive belts and reassemble the drive belts on the arbour pulley. I had a spare motor that came off a floor drill but i was told that it was 110 volt but on closer inspection it was actually a dual voltage motor 110 240 so I had it rebuilt and wired to a 3 pin plug and cord. Next i had to design and build a mount for the motor as that was missing however when i tried to fit the motor in the stand it was obvious the belts were too short. So disassemble the bearing buy and fit two new longer belts and reassemble the arbour. The motor mount was fabricated but i had mounted it a little too low but a nice set of machinery feet solved that problem. i ordered an emergency on off switch and wired that up in the original hole but it sticks out a little. I bought a new wire and grinding wheel fitted and tested the build so far, it worked fine. It seems that when this grinder was made that end shields and eye shields were not required so i had to fabricate them. This required me to use the plasma cutter and MIG to cut and fit them. The eye shields fell off a display stand and they work well as your hands fit in the Great Australian Bight. The last hurdle was to weld the cast iron tool rest back together. It has been 40 years since i last welded cast iron, not a lot of cast iron on the helicopters i worked on. I practiced on a broken vice and when i felt brave enough i welded the tool rest back together. It is not perfect so i painted it black to hide it. It now stands finished in my welding bay. Regards Steve
    Attached Images Attached Images

  2. #2
    Join Date
    Dec 2009
    Location
    Sydney
    Posts
    327

    Default

    Great save!
    My favourite type of grinder- big! A bit easier to use when you just have to lean your body-weight on the job, into the wheel.
    Probably super sell-able, now it has a 240v motor.
    regs,
    AndrewOC
    'Waratah' spring hammer by Hands & Scott c.1911- 20, 'Duffy, Todd & Williams' spring hammer c.1920, Premo lathe- 1953, Premo filing machine.

  3. #3
    Join Date
    Sep 2021
    Location
    Toowoomba
    Age
    72
    Posts
    7

    Default Can you have too many grinders

    Quote Originally Posted by AndrewOC View Post
    Great save!
    My favourite type of grinder- big! A bit easier to use when you just have to lean your body-weight on the job, into the wheel.
    Probably super sell-able, now it has a 240v motor.
    regs,
    AndrewOC
    This floor grinder has for friends 3 bench grinders and 7 angle grinders I do not swap out discs very often during a job, just pick another grinder. and NO i am not selling it, not after the work I put into it.

  4. #4
    Join Date
    Jul 2014
    Location
    melbourne
    Posts
    110

    Default

    looks great, will last another hundred years

  5. #5
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    lovin' those Aussie shaped shields. gold!

  6. #6
    Join Date
    Sep 2021
    Location
    Toowoomba
    Age
    72
    Posts
    7

    Default big toys

    Quote Originally Posted by StrayAlien View Post
    lovin' those Aussie shaped shields. gold!
    The eye shields came from a COVID separator panel supplied by m
    y daughter in law who dumpster dived to retrieve them for me. The colours may look a little gaudy but they are the colours of RAEME which was the Corps i was in, while in the Army for 27 years.

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