Bendix air dryer

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by spindrift, Jun 10, 2021.

  1. spindrift

    spindrift Road Train Member

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    There is what looks to be a keyway at the bottom of the threads. There's an O-ring in the new filter box (TRP p/n AC1001) that will fit over those threads and snug up against the base but it will absolutely obstruct that keyway just a little. What's the purpose for the keyway?
    The thread title should say, Bendix.
    20210610_160236.jpg
     
    Last edited: Jun 10, 2021
    Reason for edit: Auto correct got me.
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  3. ibcalm19

    ibcalm19 Heavy Load Member

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    Air flow. The o-ring will expand when you screw the filter onto the base. Put it on see how it works. You should be fine
     
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  4. Goodysnap

    Goodysnap Road Train Member

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    No small oring from the factory on ADIS. Throw it away. Lube seal on filter and put it on.
     
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  5. spindrift

    spindrift Road Train Member

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    Someone had previously installed the old O-ring. Could it have done any damage?
     
  6. Goodysnap

    Goodysnap Road Train Member

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    I doubt it. But it doesnt do anything either.
     
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  7. kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

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  8. spindrift

    spindrift Road Train Member

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    Thank you, sir.
     
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