Pinsetter launchings pins up lane.

[Pitboy]

I have a machine that likes to shoot the pins up the lane. Happened three times today. Here's the scenario...second ball is thrown or a strike occurs. Rake sweeps and stops at 180, the deck will shift and drop pins from 0 degree height. Rake comes back forward sending the pins up the lane. Have not been able to figure it out yet, any ideas?

[tyson]

is the deck holding hook adjustment correct

[mikeb]

The rake board is most likely getting stuck behind the rear edge of the lane. The safety stop should be checked and adjusted. To prevent that from hapening check that the rake latch is properly adjusted and that it isn't unlatching md cycle.

[JACKO]

The rake board is most likely getting stuck behind the rear edge of the lane. The safety stop should be checked and adjusted. To prevent that from hapening check that the rake latch is properly adjusted and that it isn't unlatching md cycle.

He is correct, you probably have spring loaded rake crank rods which is why your machine is still cycling. pay attention to the shotgun relocking during the cycle and adjust as suggested above.

[Lonnie_Mitchell]

I agree with Mikeb and Jacko. However, even if the shotgun latch is disengaging, the proper adjustment of the rake lowering stop bracket should prevent this. You can adjusted at 180 degree stop. There should be only a 1/16" gap between the bracket and the "V" lever (aka:Rabbit ears). This bracket is meant to prevent the sweep from dropping behind the tail plank in the event of latch failure.

[Steve Stafford (JBEES)]

Be sure the top bolt of the rake shock is tight. Too often this bolt will come loose and allow the issue you are seeing start to crop up. Here is an idea that you could do to help keep the issue from occurring in the future.





Zot makes a kit similar to this modification and can be installed quite easily.

[mikeb]

Nice! I think that is a GREAT modification!

[SoCalTom]

One of the biggest problems is the upper shock mounting bolt. If it isn't tight enough, it will oval out the mounting holes. At my last center, out of 40 machines, 38 were loose. Some worse than others. This should be inspected at least monthly.

[PJ]

Be sure the top bolt of the rake shock is tight. Too often this bolt will come loose and allow the issue you are seeing start to crop up. Here is an idea that you could do to help keep the issue from occurring in the future.





Zot makes a kit similar to this modification and can be installed quite easily.

Made that bracket our self years ago I think we got the idea from Steve Stafford.

[SoCalTom]

Made that bracket our self years ago I think we got the idea from Steve Stafford.

That is a great idea. If I didn't know any better, the bracket looks as if it came from a pit conveyor (12-300076-000) front pier. Just slice off one side and presto - a bracket.

[Kanga (James)]

One of the biggest problems is the upper shock mounting bolt. If it isn't tight enough, it will oval out the mounting holes. At my last center, out of 40 machines, 38 were loose. Some worse than others. This should be inspected at least monthly.

I've also seen this on occasion when the incorrect spacer has been installed. They don't notice the spacer is too short, tighten it, the bushing binds, then they back the nut off.

[Pitboy]

Thanks for all of the suggestions. I have gone through and checked/adjusted all rake components. So far the machine has worked flawlessly. I did find the stop bracket to be out of adjustment as was my rake crank. Thanks again.

[SoCalTom]

I've also seen this on occasion when the incorrect spacer has been installed. They don't notice the spacer is too short, tighten it, the bushing binds, then they back the nut off.

Oh, don't remind me. I have seen the rubber bushing deteriorate and someone will put in a shorter spacer to compensate, instead of replacing the rubber bushing. When the shock finally fails, the shorter spacer is installed on the new shock, and a bind occurs, just as you describe.