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Question For Ontario Truckers

Discussion in 'Canadian Truckers Forum' started by KK416, Oct 10, 2017.

  1. Oct 10, 2017 #1
    KK416

    KK416 Bobtail Member

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    Can any veteran licensed driver or rookie driver who has recently acquired their cdl explain this procedure and how exactly it is done in clearer detail?

    8. Coupler is insecure or movement exceeds prescribed limit
    Trucks Handbook

    Thanks!
     
    KK416, Oct 10, 2017
    KK416, Oct 10, 2017
    #1
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  3. Oct 11, 2017 #2
    Jazz1

    Jazz1 Road Train Member

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    the handbook explains how much slack is acceptable and the procedure to determine amount of slack if any, it's pretty clear unless someone can post pics for you
     
    Jazz1, Oct 11, 2017
    Jazz1, Oct 11, 2017
    #2
    KK416 Thanks this.
  4. Oct 11, 2017 #3
    KK416

    KK416 Bobtail Member

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    I understand that, what I don't understand is where on the 5th wheel you have to place your mark and where you have to measure to. To me it seems, in order to get a measurement with the trailer attached, you would not only have to mark the 5th wheel but the trailer apron as well because you cannot see the kingpin when it is attached. The book does not say this though.
     
    KK416, Oct 11, 2017
    KK416, Oct 11, 2017
    #3
  5. Oct 11, 2017 #4
    gokiddogo

    gokiddogo Road Train Member

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    Are you talking about trailer wheelbase laws? The 12.5 metres (41') to center of rear axle group measured from kingpin law?
     
    gokiddogo, Oct 11, 2017
    gokiddogo, Oct 11, 2017
    #4
  6. Oct 11, 2017 #6
    Jazz1

    Jazz1 Road Train Member

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    See handbook link he posted. It's about 5th wheel slack. Don't know if that would be part of practical test or just knowing what the acceptable amount of slack is for written test.
     
    Jazz1, Oct 11, 2017
    Jazz1, Oct 11, 2017
    #6
  7. Oct 11, 2017 #6
    gokiddogo

    gokiddogo Road Train Member

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    Probably just know the measurements for the test and have a clue what it feels like when 5th wheel is getting to the point it needs adjustment or rebuild/replace. Get a feel for it over time.

    Measurement for trailer apron and can't see kingpin when coupled is what threw me off.
     
    gokiddogo, Oct 11, 2017
    gokiddogo, Oct 11, 2017
    #6
  8. Oct 11, 2017 #8
    Jazz1

    Jazz1 Road Train Member

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    Chalk mark on side of fifth wheel and then underside of trailer, pull on trailer and check distance between marks if any.
    Adjusting depends on make of fifth wheel.
     
    Jazz1, Oct 11, 2017
    Jazz1, Oct 11, 2017
    #8
    KK416 Thanks this.
  9. Oct 11, 2017 #8
    KK416

    KK416 Bobtail Member

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    It's on the schedule 1 and one of the drivers/students from the previous class was asked this on the exam. Basically, he was confused about this as well as the examiner, so he marked the trailer apron right above the pivot pin of the fifth wheel on the trailer apron and edged the tractor forward and showed the examiner that the movement was less than 1/2 inch. He passed. It's a ####ed up question and nobody seems to have the right answer for it.
     
    KK416, Oct 11, 2017
    KK416, Oct 11, 2017
    #8
  10. Oct 11, 2017 #9
    KK416

    KK416 Bobtail Member

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    Thanks!
     
    KK416, Oct 11, 2017
    KK416, Oct 11, 2017
    #9
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