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jheinen last won the day on November 12 2017

jheinen had the most liked content!

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30 Excellent

About jheinen

  • Birthday 04/19/1967

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  • Gender
  • Location
    Issaquah, WA
  • Interests
    Knife making, blacksmithing, aviation, history

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  1. jheinen

    Little Giant 25 Help

    I think I may be close to fixing it. Still suspecting that the issue is not enough lubrication between the shaft and pulley, which results in just enough friction to keep it spinning once the clutch is released, I squirted a bunch of oil where the red arrow is pointing. Now it no longer hits once the treadle is released. The hammer goes up and down two or three times and then stops. BTW, does it matter which direction the hammer spins? I've noticed that all of the mechanical hammers I've seen spin clockwise when facing the hammer. Mine is set up to run counterclockwise.
  2. jheinen

    Little Giant 25 Help

    An update - I had to go to Chicago last week, and then I got sick, so I haven't had much time to work on the hammer. This morning I tried loosening the belt, but it didn't fix the problem. I also tightened the bolts that hold the shaft, but that also did not fix the problem. I'm not sure what to try next short of pouring new bearings. Anyone in the Seattle area want to help rebuild a little giant? Extra beer if you know how to pour babbitts
  3. jheinen

    Drop Point

    Very, very nice!
  4. jheinen

    Little Giant 25 Help

    Yes, I will try and take a video. In other news, I reached out to Roger at Little Giant and, amazingly, he responded right away. On Thanksgiving. Talk about customer service! It turns out that the hammer running on is one of the most frequently cited problems, and he pointed me to the FAQ that I somehow missed. Here's what it says: Why does my hammer run on after releasing the treadle? The 5 main causes are 1) the Drive Belts are too tight, 2) the Main Bearings have too much clearance, 3) the Clutch Pulley is not disengaging from Clutch Spider , or4) Babbitt in clutch pulley has to much clearance or wear, 5) in unheated shops the grease used in the Mainshaft/Clutch Pulley Bearing is too thick! I'm pretty confident at this point that #3 and #5 are not the problem. I can try to loosen the belt for # 1. I'm not sure how to check for #2 or #4.
  5. jheinen

    Little Giant 25 Help

    More oil doesn't help. Everything turns smoothly by hand, and nothing seems to be sticking. The hammer is actually very quiet. But it just won't stop.
  6. jheinen

    Little Giant 25 Help

    I cleaned the crap out of the grease hole again. Lots of degreaser, and I used a swab to clean it out, and used a bent coat hanger to dig around in the hole inside. Put it back together with teflon tape and was able to get even more pressure (although seeing the above comment about not over-greasing the hole, maybe packing it full isn't the way to go). Still have the same problem. I'll try oiling the heck out of the spider and pulley.
  7. jheinen

    Little Giant 25 Help

    Progress - I shortened the treadle linkage and now the hammer is hitting MUCH harder and faster at full deflection. The clutch blocks retract fully into the pulley, and on release they come all the way out. Unfortunately, once it gets running it still won't stop until I shut off the power, however it's hitting much more softly when it's running on than it was before. I cleaned out the grease tube with degreaser and filled it back up. Grease is still coming out around the zerk joint, and I don't see any grease squirting out anywhere else. I'm not sure where it should be squirting out. Should I put some teflon tape around the fitting threads to help seal it up more and get more pressure in there?
  8. jheinen

    Little Giant 25 Help

    I took the zerk off this morning and have been cleaning out the tube with degreaser and a coat hanger. Got a lot of gunk out of there. Where, exactly should I see the grease splooging out? I'd assume that I'd see degreaser coming out somewhere, but I don't see anything.
  9. jheinen

    Little Giant 25 Help

    I tightened the fitting and the grease seeping out of the joint mostly stopped. Now it's coming out of the grease gun nozzle.
  10. jheinen

    Little Giant 25 Help

    I'll have to heat it in the forge tomorrow to bend it. It's about 1/2" thick. I'll give it a shot. That may solve the issue with the hammer not starting, but I don't think it will solve the problem of it not stopping. I suspect grease is not getting to the shaft, so I'll take the grease fitting off and try to clean it out.
  11. jheinen

    Little Giant 25 Help

    Here are the blocks with the treadle depressed and not depressed.
  12. jheinen

    Little Giant 25 Help

    This is with the treadle fully depressed. There's a gap between the blocks and the flywheel.
  13. jheinen

    Little Giant 25 Help

    When I release the treadle, the flywheel does come all the way off the blocks. If I rotate the wheel by hand and step on the treadle, the blocks do not turn. In fact, if I look closely, when the treadle is depressed it does not look like the blocks touch the flywheel. I can see daylight in there, which would explain why it doesn't start unless I stomp the treadle. There's still about 1/4" of travel left with the treadle fully depressed, and I think that when I hit it hard it throws the flywheel just enough to start it going. The turnbuckle on the left is for the motor, the big spring on the right is the treadle return spring.
  14. jheinen

    Little Giant 25 Help

    I was mistaken. There is a spring to return the treadle. It seems to be returning the treadle correctly.