SECOND BALL PROBLEM

[BAM_BAM68]

HELLO ALL . I HAVE A MACHINE THAT STAYS ON SECOND BALL EVERY OTHER FRAME . I REPLACED THE CHASSIS AND IT STILL HAPPENS . I HAVE 82-70'S WITH OMEGA TEK BOARD AND EXPANDER BOARD . ANY WHERE ELSE I CAN LOOK ?

[AMF-Holland]

Re: SECOND BALL PROBLEM

Hello Bam,

Maby the Table or Sweep Cam Switches, Machine doesn't Switch to First Ball.

Peter

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[BAM_BAM68]

Re: SECOND BALL PROBLEM

DO YOU MEAN ADJ. SWEEP OR TABLE HIGHER ?

[bent wrench]

Re: SECOND BALL PROBLEM

change the microswitches in the cams.

[BAM_BAM68]

Re: SECOND BALL PROBLEM

OK WILL TRY. THANKS GUYS

[E in the burrow]

Re: SECOND BALL PROBLEM

oor switch?

[Andrew]

Re: SECOND BALL PROBLEM

The specific cams that can cause this problem are TA2 and SA.

Even though a microswitch seems fine when tested with a multimeter/continuity tester or C2A tester, it can still cause problems with Omega-tek boards (due to aged contacts producing a 'fuzzy' or 'dirty' input signal).

The dirty signal can cause the omega-tek to double-step cycles.

If it's happening fairly often, then it's easy to test the switches before changing them using the following procedure.

To test SA: run the table and stop it just before 0 (with TA2 still on - say 340 degrees). Then, run the sweep with the contactor. Everytime the sweep passes 0, it should step cycles. If it doesn't, then the SA switch is probably faulty.

To test TA2: Run the sweep and stop it at 270 (SA cam is on). Then, run the table with the TA1 cam. Everytime the table passes 355, it should step cycles. If it doesn't, then the TA2 switch is probably faulty.

These tests should allow you to determine which of the cams are faulty (if at all). May save you changing more switches than necessary (if you really care, that is - I tend to be a bit miserly).

Cheers,
Andrew.

[bent wrench]

Re: SECOND BALL PROBLEM

For the small cost of the microswitches, might as well change them all while the switch pack is out. JMHO. [img]/content/btubb/images/%%GRAEMLIN_URL%%/smile.gif[/img]

[maister]

Re: SECOND BALL PROBLEM

sometimes a sticking micro or simply a weak spring or the head of the bolt hitting the nipples on the micro may be indented and not always activating the micro.
maister

[bent wrench]

Re: SECOND BALL PROBLEM

I feel bad for you the fact that you have to clean up Kenny's mess. Although... Playdrome dont help you either. [img]/content/btubb/images/%%GRAEMLIN_URL%%/usflag.jpg[/img]

[BAM_BAM68]

Re: SECOND BALL PROBLEM

THANKS AGAIN TO EVERYBODY .I CHANGED ALL THE SWITCHS AND IT WORKS .