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Pto on Allison transmission

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by truckerbangin, Nov 2, 2021.

Page 2 of 3
  1. Nov 3, 2021 #11
    circle h

    circle h Light Load Member

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    Yes, power and ground when the switch is on.
     
    circle h, Nov 3, 2021
    circle h, Nov 3, 2021
    #11
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  3. Nov 3, 2021 #12
    circle h

    circle h Light Load Member

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    Maybe put a jumper with power and ground to your solenoid and see if it engages
     
    circle h, Nov 3, 2021
    circle h, Nov 3, 2021
    #12
  4. Nov 3, 2021 #13
    circle h

    circle h Light Load Member

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    Make sure it's in neutral
     
    circle h, Nov 3, 2021
    circle h, Nov 3, 2021
    #13
  5. Nov 3, 2021 #14
    Inderjit

    Inderjit Heavy Load Member

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    Have you got an ohm meter? what is the resistance of the coil?
    What are you driving with the PTO?
     
    Inderjit, Nov 3, 2021
    Inderjit, Nov 3, 2021
    #14
  7. Nov 3, 2021 #15
    circle h

    circle h Light Load Member

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    Oct 22, 2020
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    Truck is at the shop. I am at home, won't see it again until tomorrow. Does your solenoid click if you give it 12 volts and a ground?
     
    circle h, Nov 3, 2021
    circle h, Nov 3, 2021
    #15
  8. Nov 3, 2021 #16
    circle h

    circle h Light Load Member

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    Oct 22, 2020
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    Mine runs a pump for a dump box.
     
    circle h, Nov 3, 2021
    circle h, Nov 3, 2021
    #16
  9. Nov 4, 2021 #17
    truckerbangin

    truckerbangin Light Load Member

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    Jan 22, 2013
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    No it isn’t activated by the factory switches. Truck doesn’t have factory switch on dash.
     
    truckerbangin, Nov 4, 2021
    truckerbangin, Nov 4, 2021
    #17
  10. Nov 4, 2021 #18
    truckerbangin

    truckerbangin Light Load Member

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    Jan 22, 2013
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    Solenoid is in pto unit
     
    truckerbangin, Nov 4, 2021
    truckerbangin, Nov 4, 2021
    #18
  11. Nov 4, 2021 #19
    truckerbangin

    truckerbangin Light Load Member

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    Jan 22, 2013
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    That’s what I’m trying to run. What’s the rotation of you dump pump. Clockwise or counterclockwise
     
    truckerbangin, Nov 4, 2021
    truckerbangin, Nov 4, 2021
    #19
  12. Nov 4, 2021 #20
    Inderjit

    Inderjit Heavy Load Member

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    Sep 17, 2017
    0
    The solenoid coil can fail. If it shorts out internally it can lose some of
    the windings making it weak but not blow the fuse. Can you get a new
    solenoid coil and swap it out?
     
    Inderjit, Nov 4, 2021
    Inderjit, Nov 4, 2021
    #20
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