TriPac Apu

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mitmaks, Jan 7, 2017.

  1. earnies2

    earnies2 Medium Load Member

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    May 17, 2012
    Dedham, MA.
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    What's your opinion on mounting the fuel pump and filter outside the cabinet I have already replaced the fuel pump my f has a water drain on the bottom that I cannot use because it dumps out on the belt poor design....
     
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  3. lilillill

    lilillill Sarcasm... it's not just for breakfast

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    Nov 7, 2007
    Possum Booger, Alabama
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    I have a Facet solenoid style pump outside the unit. So far it has outlasted any other pump.

    I also have a thermoking fuel screen ( like a mini Davco) like the kind they use on the newer evolutions.
     
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  4. lilillill

    lilillill Sarcasm... it's not just for breakfast

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    Possum Booger, Alabama
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    The spin on filter is still inside the cabinet.
     
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  5. shatteredsquare

    shatteredsquare Road Train Member

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    May 23, 2014
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    Was that in the cab fuse box or outside in the unit?
     
  6. Donny_0920

    Donny_0920 Bobtail Member

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    Jan 23, 2022
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    I know this thread is old but the wire with fuse is not hooked to anything in my apu unit. Looks like it had a connector that broke off. Can someone tell me where this wire with small amp fuse goes
     
  7. Donny_0920

    Donny_0920 Bobtail Member

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    Jan 23, 2022
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    Can u please tell me where that wire with the fuse goes. My wire looks like it had a terminal on the end but broke off. Thank you
     
  8. shatteredsquare

    shatteredsquare Road Train Member

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    look inside the lid of the controller box, there is diagram of fuses/relays/connections. should be called 'sen', for 'voltage sense'...if the wire broke, look for a connector on the board without a wire attached to it :help:
     
  9. Donny_0920

    Donny_0920 Bobtail Member

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    Jan 23, 2022
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    The wire is broke off in the engine compartment, not the control box looks like it might attach somewhere around starter/alternator.
     
  10. Donny_0920

    Donny_0920 Bobtail Member

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    Jan 23, 2022
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    I know it’s for the sen or voltage sensor just don’t know where the other end attaches to the engine. I hooked it to a 12v source for now and the engine shuts off like it should, but don’t know if that’s correct for this wire
     
  11. shatteredsquare

    shatteredsquare Road Train Member

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    sen voltage wire should go from batteries to control box. broken wire might be another voltage sense wire from the voltage regulator to control box idk. voltage regulator would be the smaller cylinder thing next to the alternator
     
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