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  • bent rake crank arm

    i have a lane that has bent the rake crank arm 3 times in the past two years. i think that the rake is dropping behind the tail plank and getting caught as the deck comes down. but ive never seen it happen. i checked all of the rake adj every time it has happened and it looks like the rake lowering stop bracket adj is off. is that the only thing that keeps the rake board from dropping behind the tail plank if the shotgun unlatches ? or is there something else im missing. do you think i should install a collapsible rake crank rod? thanks for any ideas.

  • #2
    Re: bent rake crank arm

    Jaysen, I would install a collapsable "pogo stick" on the machine. I would also rebuild or replace the "shotgun ". Another possible cause for the bent rod is that the rake is being hit with a bowling ball. You are correct in that the rake lowering stop function is to stop the rake from dropping behind the tailplank if the shotgun becomes unlatched . If the stop is constantly out of adjustment, I would conclude that the shotgun is becoming unlatched quite often, and over time is finally pushing the stop out of adjustment, or the force of a thrown ball , hitting the rake , is forcing the stop out of adjustment.
    There is light at the end of the tunnel - just be sure it is not a train.

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    • #3
      Re: bent rake crank arm

      Also dont use the book adjustment cycle about half way through the sweep 135 degress and make sure the rake is 1 inch above the deck little trick i was shown
      What do you mean! There were spare parts?

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      • #4
        Re: bent rake crank arm

        Originally posted by Spiderman:
        Also dont use the book adjustment cycle about half way through the sweep 135 degress and make sure the rake is 1 inch above the deck little trick i was shown
        <font size="2" face="Verdana, Arial">Are you sure you know your adjustments???? It is only 5/8 of an inch NOT 1 inch. If you were told it was aninch then someone told you wrong. it cant be more than 3/4 of an inch..

        by the way I would rebuild my shotgun. it may be one of the bearings that are worn. I had that problem befor.

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        • #5
          Re: bent rake crank arm

          If you are bending crank rods, another thing to check is the transfer point from the flat gutters to the round gutters. If the woodwork is very old, you can get a notch or ledge that the rake can catch on if the shotgun releases while the rake is sweeping. If the rake board sticks, it can cause a bent hook as well as the crank.

          Roger

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          • #6
            Re: bent rake crank arm

            Roger has a great point, I always Run a pinsetter to it has just past the transition area of the two gutters. I then unlock the shotgun and push the rake back and forward to test if the rake will transfer and not bind on the trasition block. If it binds you need to shim as requird. It is not uncommon for a shotgun to come unlocked if a ball hits it during a cycle.If it gets cault hte rke crank arm will bend up about 2-3".
            Peanut

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