Announcement

Collapse
No announcement yet.

Sheared rotor shaft

Collapse

Adsense Classic 1

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Sheared rotor shaft

    Westies.

    Got a note that lane 13 BE motor just hums and wont run. My first thought is cap or switch. Upon first inspection I can't even turn the elevator by hand so I start to unbolt the motor. I get the last bolt out and am getting ready for the hassle of pulling the motor off (majority of ones I've serviced haven't had anti-seize) when the motor falls to the pit. There is about 3/8 inch of shaft sticking out. I'm now trying to figure out the best way to pull this out. I gripped it with vice-grips as tight as I could get them and wedged a chisel between the face and the grips. Tapping with a hammer but can't get a good enough grip. My next thing to try is drilling a hole in the middle of the shaft and tapping it. then rigging up something akin to a steering wheel puller. Anybody have to deal with this before?
    Failed safety course.Question #1:In case of fire what steps do you take? Apparently 'Friggin long ones!" is the wrong answer.

  • #2
    Been there.

    You could try drilling then threading the hole in the broken shaft for a bolt or screw so you would have something to grab onto and spraying it good with PB Blaster to try to free it. Or if you have a spare gearbox worm shaft ready, on the machine you can remove the motor mount plate then by hand rotate the pin elevator pulley backwards which should push the worm shaft out of the gearbox. Then either take the worm with the broken motor shaft to the bench and try to get it out or just put in the replacement worm and be done with it.

    This also works with National combos.

    Comment


    • #3
      That's an awesome tip TJ, to let the brass gear push it out for you.

      I had something similar happen and how I got the frozen piece out was to drill relief holes in the center so I could crush it down and get enough gap to spray some rustbreaker between the two pieces. Then I drilled a hole straight through the now crushed steel and put a grade 8 bolt through it and hit the bolt with a deadblow.

      you probably wouldn't want to drill the hole before you crush it since your bolt won't go in the messed up hole.
      When you know what to do, everything is easy.

      Comment


      • #4
        Sometimes you can pull them out easy with vise grips with the belts removed but turning the pulley to push it out is a little easier. Had a few shafts break off in there before like this and also had a worm with a wasted small bearing, changed them this way pretty easy. Now with the sweep or table you'd want to get the table down if it isn't already and sit it on something, maybe sit it on a bucket so there is lots of room, remove the tension from the table shaft by removing the springs for the shuttle and spot/respot levers, then with the motor plate off the gearbox grab the table shaft at the table drive and turn it in the normal direction. For the sweep just make sure its down somewhere and do the same. Actually you can just push the sweep bar with your foot and it should pop right out.

        Comment

        Topic Starter RibbonScript

        Collapse

        Adsense Classic 2

        Collapse
        widgetinstance 666 (Related Topics) skipped due to lack of content & hide_module_if_empty option.
         

        Table cutting off before the end of the cycle

        I have one lane that has been giving me trouble lately. It used to be every once in awhile but now it is happening every cycle. Start 1st ball cycle, sweep drops does the usual...
         

        ETU diagnostic tool

        I've posted before about wanting to try and figure out how to fix these trigger boards we have. I'm trying to map the thing out and create a schematic, but it's slow going, especially...
         

        Gutter Straps

        Hey everyone, I hope someone can direct me in the right direction. I'm looking to find either a part number or someone willing to part with some.gutter straps. I have plastic...
         

        AMF 82-90XL BE Gearbox seals part number cross reference.

        I have spent a few hours cross checking part numbers for my 82-90xl's Back end gearboxes. I have found that most auto part stores carry these seals for a fraction of the price...
         

        Roller Clutch issue

        Has anyone had to remove the plastic ring in the back side of the plate in order to achieve good indexing? I now have 2 roller clutches without the backing rings in service. Either...
         

        Another pivot bearing broke.

        One and a half year old GSX machines. This will be the 5th pivot bearing that has broke. This one decided to take out a few things with it. Snapped the stroke limiter shock stud...
        Working...
        X