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Loose Quick Attach

Discussion in 'Skid Steers' started by climb.on, Aug 28, 2017.

  1. DirtyHoe

    DirtyHoe Well-Known Member

    Joined:
    Jun 18, 2016
    Messages:
    104
    Location:
    Albany, Oregon
    You would not take too much out with the reamer. Just enough to get a round hole, then install a larger pin like Diydave said.
    Drills don't do well on existing egged holes. Also they have a hard time staying on location, finished hole size can vary, not to mention a poor surface finish.

    Steve
     
  2. 03hdrk

    03hdrk Well-Known Member

    Joined:
    Aug 29, 2015
    Messages:
    58
    Location:
    N TX
    I have a Case 580 backhoe that has pins on the bucket that move but have no way to grease. When dealing with the dealer, we could not find anything any different in the parts list. To me this is poor engineering. If a pin is not locked in place in its hole, it should be able to be greased. And I mean LOCKED in place. On our Gehl the Quick attach pins are greaseable in their bushings. and if you don't grease them they will bind, yet they don't spin, they just have a linear force placed on them with every push or back drag. They are proof that just because a pin doesn't turn in its hole, does not mean it does need grease. On our injection molding machines were I used to work, there were pins used like this. They had almost no force on them during the movement of the cylinder but held a large amount of pressure stationary on every cycle - sometimes cycling every 15 seconds 24 hours a day for weeks. They would were out if you did not grease them.
    I'll get off my box for now.
    You might consider have the pins drilled in such a way that you could grease the area that is wearing. I have actually done this with a half inch drill to make a hole in the center of the pin and using a v block from Horrible Freight, drill a cross hole. Drill and tap for a grease zerk.
     
  3. DirtyHoe

    DirtyHoe Well-Known Member

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    Jun 18, 2016
    Messages:
    104
    Location:
    Albany, Oregon
    03hdrk,
    You bring up a good point on the 580. I have a 580C and noticed the same thing. All of the bucket linkage pins are dry with no grease zirks. I would like to know why since the rotate as much as other pins that are greasable.

    Steve
     
  4. check

    check Senior Member

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    Apr 1, 2012
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    in the mail
    Attachments fall off my 246 regularly. Heating, hammering and welding to take up the slop I can understand, but why do the pins retract when I curl down? I can see it plain as day and it seems to be designed to do just that. The taper on the ends of the pins force the pins up when there is a side load on them. How to fix?
     
  5. pajibson

    pajibson Senior Member

    Joined:
    May 30, 2013
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    279
    Location:
    metro detroit
    I used a mag drill and the appropriate sized annular cutter once to resize the bottom bores on a cat MTL once. rigged up an alignment jig with some plumbing fittings, & a length of pipe. It wasnt pretty but it seems to have worked. that was 2 years ago and the machine hasnt worn out the new bushings yet.
     
  6. check

    check Senior Member

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    Fixed it so I'll answer my own question in case it helps anyone.
    When the slot in the bottom of the attachment wears, it allows the pin to drop lower which means less spring tension. After I welded the slots back up to original size, the pins have the correct tension and the attachment stays put.
     
  7. BC873G

    BC873G Active Member

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    Kansas
    Check, I am curious how you welded the slots back up? A few more details would be appreciated or a picture. Thanks.
     
  8. check

    check Senior Member

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    Where the pin goes in, the slot on the attachment usually wears a groove on the back (machine side). I just welded a few passes with 7018 to fill the groove and ground it to match the rest. One thing I need to mention is that the springs on the pins are almost bottomed out when you have the correct tension, IMHO.