Pins double feeding thru Shuttle causing Pin Jams in Tables

[tmac-R]

I have 2 machines that have this problem .It is happening on the 8 pin , it only does this perhaps once or twice a day. Shuttle is adjusted correctly , heights are O.K . any suggestions would be grateful.

[Coors]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

the first thing i do is lower the back of the shuttles using the two tie rods by the 7&10 pins. (just need a 9/16" wrench & box end ratchet) the manual says 7/8" clearence of the shuttle from the frame of the bin...pay no attention to that...lol lower the shuttles as far as the tie rods will let you...to get the shuttles closer to the pin cups.

another quick fix, if there is enough play, is to run the table to spot pins and stop the table as the pin bottoms are about 1/4" from the pin deck. lengthen the set screw of the table yoke til there is about 1/16" clearence...this will raise the pin cups up when the table is at zero and help get the pin cups closer to the shuttles

the other thing you can do which is really not that hard, lower the front end of the machine, using the four jack bolts which sit on top of the kick back, which will lower the enitre machine closer to the pindeck, and then raise the table.

[tmac-R]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

Quote:]Originally posted by Coors:
the first thing i do is lower the back of the shuttles using the two tie rods by the 7&10 pins. (just need a 9/16" wrench & box end ratchet) the manual says 7/8" clearence of the shuttle from the frame of the bin...pay no attention to that...lol lower the shuttles as far as the tie rods will let you...to get the shuttles closer to the pin cups.

another quick fix, if there is enough play, is to run the table to spot pins and stop the table as the pin bottoms are about 1/4" from the pin deck. lengthen the set screw of the table yoke til there is about 1/16" clearence...this will raise the pin cups up when the table is at zero and help get the pin cups closer to the shuttles

the other thing you can do which is really not that hard, lower the front end of the machine, using the four jack bolts which sit on top of the kick back, which will lower the enitre machine closer to the pindeck, and then raise the table.
[/QUOTE]

Thanks for those ideas. I think the last one is a bit drastic, and by lowering the Front End of the machine ..you will also lower the shuttle ,thereby giving you the same problem , correct?
The first idea sounds like the one to go for. thanks

[Coors]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

By lowering the front end of the machine...you can then raise the table and get the pin cups closer to the shuttles. The reason for the widening gap between the shuttles and the table is the resurfacing of the lanes. After 40+ years of sanding and lowering the table to compensate the gap between the two got huge. By lowering the entire machine...and raising the table, all my double shuttles went away. the only double shuttles i still have is when the 7/10 pin shuttle strap breaks

[Coors]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

some people think shuttling of pins is a magic trick like pulling a table cloth without knocking over the glasses. actually there should be no magic to it. the bottom pin should drop into the pin cup and the top pin should lay on the bottom pin while the shuttles slide back. and as the table goes down...the top pin simply lays down on the shuttle pin holders. the problem the 8 pin is that the top 8 pin is too low and is being kicked by the shuttles...which causes it to stand up and fall through into the table

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

Just an idea for thought in case you still have the problem. We had the same problem many years ago and discovered that putting shuttle straps on all of the bins virtually eliminated the problem. It closed the gaps and made shuttle a lot more stiffer.
Just my two cents.

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

Just in case you want to check your machine height it should be 19 1/8" +- 1/8 from the pin deck to the base of the 'A' frame. If they are to high lowering them is a job definetly worth doing.

Kelvin

[Dutch]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

There's also the adjustment at the rear of the bin, oneach side. It's the bracket that the rear of the bin hangs on. There's a high & low position only, but I've found that it only needs one bolt to hold it on. This gives you a med. position.
Since the problem is in the back row, this should do the same as lowering the machine, with alot less work (as long as the brackets aren't already in the low position). These brackets also give you a side to side adjustment. Make sure that the bin & cups line up.
Dutch

[Coors]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

I use the med position of the bracket also...i drill extra holes to allow the 3rd & 4th bolts to help.

Lanes 15-20 in our 43 year old house are as low as their gonna go and a few years ago i got desperate and tried that.

works good

[vinson]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

If you need another angle and much easier than moving the machine try this it works. Look at the #9 bin ,see how the bin switch lever sits? apply a spacer to the #8 bin ,maybe 1/4 inch thickand attach it to the bin where the head pin sits. this will push the pins forward and prevent the double shuttle. I like to use something noce like pexiglass, something permanent. wood will wear out. I put 2 1/4 inch bolts through the back to secure it.9 pins don't double shuttle

[tmac-R]

Re: Pins double feeding thru Shuttle causing Pin Jams in Tables

I have shuttle straps on all my pin holders in the shuttle , Front Ends are 19 inches from pindeck , all things have been tried. I like the idea about the spacer in the bin ... might give it a try. Thanks everyone . Cheers