Table dumping

[bent wrench]

Hi all. My lane 12 is occassionally, when goes to spot, going down to about 4 to 8 inches from the deck, jamming, dumping the pins , then goes back to zero. Other times it will come down on first ball cycle and when cells close , pins will swing like hell.? Is this a problem in the accuator/bell crank? Or with the eccentric? Or both? Or other thanks all!

[8270_Wang]

Re: Table dumping

If your cups are trying to rotate when the finger cells should be closing on first ball, I would be checking your solenoid and spot lever. In the past, I have had both an omega tek board and a spot relay cause the solenoid to engage on first ball causing the cells to close. As to your first problem, a little better description might be nice to clarify exactly what is going on.

Wang

[8270 pinspotter]

Re: Table dumping

Is the table actually stopping or are the cups just slamming front causing the pins to fall out? This sounds like a mechanical problem, but as Wang described could be electrical. Try swapping the chassis and see if the problem stays or follows the chassis.

[bent wrench]

Re: Table dumping

the table actually stops, not making it to the deck. it stops, bounce, pins fly, goes to 355. to me I would believe a bind in something.. but what? never seen this before. I did move chassis to another lane and so far no problems with that lane. thank you for your replies!

[mefixalane]

Re: Table dumping

Check your table drive assembly,also check to make sure the table is stopping at 355*.Maybe a spotting cup hitting the yoke.

[AMF Brian]

Re: Table dumping

It sounds to me that on a spot cycle the table's going towards the deck, hesitates or even stops for a seconds then when it continues, it causes the pins to dump out. I had that once, if it's what I'm thinking it is, I would check the collar bearing on the table shaft near the table motor, the bearing froze up causing the table to do all sorts of weird things. Just my opinion.
Brian

[James Bandy]

Re: Table dumping

Check you table drive and make sure it is not rubbing against the frame or bolt in the bearing housing. Also check the bearing in that housing could be bad and binding.

Worn splines in the table drive gearbox and table shaft can cause some bounce and also some missing teeth in the inside of the gearbox.

[TA2]

Re: Table dumping

Table has to be recieving some interferance from something keeping it from decending completely down during spotting.All you can do is stand out front and run it until you see where the problem lies.Something is binding somewhere.Good luck,and let us know what ya find. [img]/content/btubb/images/%%GRAEMLIN_URL%%/smile.gif[/img]

[bent wrench]

Re: Table dumping

sorry for taking so long here. found frozen bearing in clevis, but it still dumps them according to my suck a$$ counter people. i jump out the cycle switch in control box and run it for hours and nothing ever happens. i swear that these machines know when we are there and not sometimes. going to change eccentric next.

[James Bandy]

Re: Table dumping

If you are still getting reports of pins falling over during spotting and you tested the machine on continuos cycle with no problems sounds like a ball may be idling on the front roller against the back of pindeck. Table will strike the ball when spotting.

Turn off/unplug the table and sweep motor, turn on the pit. Crawl in and place a ball on the roller in various places and see if it will stay idle against the back of the pindeck or idle for long time before entering the return.

[partnumber]

Re: Table dumping

Have you checked if the latch pops out of the eccentric totally when machine spots?
Maybe, just a theory, the latch only comes half out when the solenoid engages and fully when the table is on his way down.

[maister]

Re: Table dumping

Check that the bearing runs free in the clevis, you seem to have found the problem though.Also the spotting latch may be a problem and also the spring behind the spotting lever, perhaps the hanger is badly worn. just some other places to look.The only other possibility i can think off that is mechanical is the eccentric drive slipping on the drive shaft.
good luck
maister

[bent wrench]

Re: Table dumping

it appears that james bandy got it. i didnt even notice but front of the pit was WAY low. i don't know how i didnt see this [img]/content/btubb/images/%%GRAEMLIN_URL%%/burningmad.gif[/img] thanks everyone for the replies! [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img]

[TA2]

Re: Table dumping

Its funny how some houses are notorious for certain problems that never seems to occurs in others. I worked in 2 diff. 32 laners. One, balls would idle on the on the front rollers while going across the pit causing the table to strike it and dump pins. The other house broke table shafts left and right but never had a ball idling problem. Where I'm now, neither problem occurs.
Go figure.... [img]/content/btubb/images/%%GRAEMLIN_URL%%/cool.gif[/img]