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how to speed up a/ jetbacks

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  • how to speed up a/ jetbacks

    i have 6 a/jetbacks that i want to speed up operation. what do i to speed them up? change pulleys,stronger motors, gearboxes or conversion kits! what do i do to solve this?

  • #2
    You can just change motor pulleys but I hafta ask why do you want to speed them up? I think I can speak for most of the techs here that the most popular move is to slow them down. Just wondering.
    "Hey, barkeep, whose leg do you have to hump to get a dry martini around here?"

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    • #3
      I THINK THEY R RUNNING SLOW! THANKS CHIPMAN!

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      • #4
        Measure the OD of the motor to gearbox pulley as well as the motor to elevator, and let us know what you have now.
        rfm

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        • #5
          I have to echo "Chipman." Most of us have slowed our machines down to "A" speed. The logic is that there is less wear and tear on the gearboxes and their associated linkages. Another reason is that it takes approximately 13 seconds for the ball to get back to the bowler. By that time, and even at "A" speed, the pinsetter has completed its cycle.

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          • #6
            Ditto, I am changing motor pulleys on mine now, from the Jetback to A pulleys. Sort of weird now, because I am still doing it to see one lane running faster than the one next to it.

            Marty - Pro Bowl West
            56 Jap A-2's Qubica VDB's
            2 Kustodian Walkers
            http://s1196.photobucket.com/albums/aa408/a2mechanic

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            • #7
              Thanks So Cal Tom!

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              • #8
                Thanks Marty!

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                • #9
                  Ok I Will ! Thanks Roscoe!

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                  • #10
                    Anyone have a "pie plate" he could throw on if he wants to see some speed?

                    Marty - Pro Bowl West
                    56 Jap A-2's Qubica VDB's
                    2 Kustodian Walkers
                    http://s1196.photobucket.com/albums/aa408/a2mechanic

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                    • #11
                      Originally posted by Marty Murphy View Post
                      Anyone have a "pie plate" he could throw on if he wants to see some speed?

                      Marty - Pro Bowl West
                      Can you say - KABOOM! LOL

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                      • #12
                        I'm with the majority I'm slowing mine down
                        the reason you may think there slow is you may have faster ones beside it slow the faster than you wont be able to tell than you can thank yourself later that you did when you notice that hey are braking less
                        Mama said bowlers are ornery because they got all them balls and conditions are never good enough

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                        • #13
                          Remember one thing...Speed is a killer...LOL
                          My father told me to never get old...I should have listened!

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                          • #14
                            Originally posted by Marty Murphy View Post
                            Anyone have a "pie plate" he could throw on if he wants to see some speed?
                            Or better yet, forget about the pulley and belt power transmission. Go with direct drive. Construct a new motor mount, and reverse the direction of the motor's rotation. Connect the motor directly to the gearbox. If you're lucky, the pinsetter may complete one cycle before it explodes.

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                            • #15
                              I don't mind running the gear box slower, but the elevator I like to keep moving. Not much worse than putting 10 in the pit, and then wait to throw next shot in 10th.

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