Revhd Wheel End Quiz

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| By Brianbeathard
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Brianbeathard
Community Contributor
Quizzes Created: 1 | Total Attempts: 457
Questions: 20 | Attempts: 457

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Wheel Quizzes & Trivia

Questions and Answers
  • 1. 

        On an adjustable hub, with no spacer or crush sleeve, TMC recommends an end play of:

    • A.

      1 to 5 thousandths

    • B.

      Zero End-Play

    • C.

      Crush or Preload is preferred

    Correct Answer
    A. 1 to 5 thousandths
    Explanation
    The recommended end play on an adjustable hub, without a spacer or crush sleeve, is 1 to 5 thousandths. This means that there should be a slight amount of axial movement allowed between the hub and the shaft. This range of end play ensures that there is enough clearance for the hub to rotate smoothly while still maintaining proper alignment and preventing excessive movement. It is important to have this small amount of end play to avoid binding or excessive friction between the hub and the shaft.

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  • 2. 

        When docking the hub, it is always best to:

    • A.

      Wrestle with the hub to push it into position

    • B.

      Allow the bearing adjustment to do most of the work for you

    • C.

      None of the above

    Correct Answer
    B. Allow the bearing adjustment to do most of the work for you
    Explanation
    When docking the hub, it is always best to allow the bearing adjustment to do most of the work for you. This means that instead of physically wrestling with the hub to push it into position, you should rely on the bearing adjustment mechanism to align and secure the hub in place. This approach ensures a smoother and more accurate docking process, reducing the risk of damage to the hub or surrounding equipment.

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  • 3. 

        Which of these is a leading cause of wheel-end failure?

    • A.

      Improper installation

    • B.

      Incorrect bearing adjustment

    • C.

      Contamination

    • D.

      Worn or damaged components

    • E.

      Clogged vent hole

    • F.

      All the above

    Correct Answer
    F. All the above
    Explanation
    All the options listed (improper installation, incorrect bearing adjustment, contamination, worn or damaged components, and clogged vent hole) can contribute to wheel-end failure. Improper installation or incorrect bearing adjustment can lead to excessive wear and damage to the components. Contamination, such as dirt, water, or debris, can cause corrosion and impair the functionality of the wheel-end. Worn or damaged components, such as bearings, seals, or brake components, can also lead to failure. Additionally, a clogged vent hole can prevent proper lubrication and cause overheating and failure. Therefore, all of the above factors can be leading causes of wheel-end failure.

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  • 4. 

        True or False - If the vent hole in the plug of the hubcap is clogged, pressure building up in the hub can blow out the seal causing the seal to leak.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    If the vent hole in the plug of the hubcap is clogged, pressure can build up in the hub. This increased pressure can cause the seal to blow out, resulting in a leak. Therefore, the statement is true.

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  • 5. 

        True or False - You should never use silicone or other sealants on a hubcap gasket. The gasket should always be installed dry.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    It is true that silicone or other sealants should not be used on a hubcap gasket. The gasket should always be installed dry because using sealants can interfere with the proper fit and function of the gasket. Additionally, sealants may cause damage to the hubcap or the wheel, leading to potential issues with the overall performance and safety of the vehicle.

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  • 6. 

        On a single locking nut, the clip should be:

    • A.

      Inserted with the tab in the keyway so that it sits squarely on the face of the nut

    • B.

      Inserted at an angle, so that the tab goes into the keyway and also underneath the lip of the nut

    • C.

      The clip is not important

    Correct Answer
    B. Inserted at an angle, so that the tab goes into the keyway and also underneath the lip of the nut
    Explanation
    The correct answer is "Inserted at an angle, so that the tab goes into the keyway and also underneath the lip of the nut." This is because inserting the clip at an angle ensures that the tab engages with the keyway, providing a secure fit. Additionally, by going underneath the lip of the nut, the clip prevents the nut from loosening or coming off unintentionally. Therefore, this method of inserting the clip is crucial for proper locking and securing of the nut.

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  • 7. 

        True or False - For a double nut system, on an adjustable hub, you will need to count the threads-per-inch and utilize the TMC chart (RP-618) to conduct a proper bearing adjustment for the spindle manufacturer you are working with.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    For a double nut system on an adjustable hub, it is necessary to count the threads-per-inch and use the TMC chart (RP-618) to perform a correct bearing adjustment for the specific spindle manufacturer.

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  • 8. 

        When working with a spacer system or unitized hub (or any hub that contains a spacer or crush sleeve) the proper bearing adjustment is always:

    • A.

      300 foot pounds of torque followed by ¼ turn back- off

    • B.

      One Torque, but the amount of the torque depends on the manufacturer of the crush sleeve. There is NO back-off

    • C.

      One Torque, but the amount of the torque depends on the manufacturer of the crush sleeve. Followed by ½ turn back-off

    • D.

      Depends on the thread count of the spindle

    Correct Answer
    B. One Torque, but the amount of the torque depends on the manufacturer of the crush sleeve. There is NO back-off
    Explanation
    The correct answer is that when working with a spacer system or unitized hub that contains a spacer or crush sleeve, the proper bearing adjustment is to apply one torque, but the amount of torque depends on the manufacturer of the crush sleeve. There is no back-off required. This means that the torque applied to the bearing is determined by the manufacturer's specifications and there is no need to loosen or back off the torque after it has been applied.

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  • 9. 

        True or False - If you have to remove the seal for any reason, it is important that you replace the seal with a new one every time.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    It is important to replace the seal with a new one every time it is removed because the seal's purpose is to provide a secure closure and prevent tampering or contamination. Replacing the seal ensures that the item remains protected and maintains its integrity.

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  • 10. 

        When installing a RevHD seal, or any seal that offers the benefit of a wider inner diameter, always make sure you clean further back on the spindle shoulder.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    When installing a seal with a wider inner diameter, it is important to clean further back on the spindle shoulder. This is because the wider inner diameter of the seal requires more space on the spindle shoulder for proper installation. By cleaning further back on the spindle shoulder, any dirt, debris, or old seal remnants can be removed, ensuring a clean and smooth surface for the new seal to be installed. Therefore, the statement is true.

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  • 11. 

        The bolts on a hubcap should be installed:

    • A.

      Clockwise

    • B.

      Counter Clockwise

    • C.

      In a crisscross or star pattern

    Correct Answer
    C. In a crisscross or star pattern
    Explanation
    The bolts on a hubcap should be installed in a crisscross or star pattern to ensure even and balanced tightening. This pattern helps distribute the pressure evenly across the hubcap, preventing it from becoming loose or unevenly tightened. Installing the bolts in a crisscross or star pattern also helps maintain the stability and alignment of the hubcap, ensuring a secure fit and preventing any potential damage or accidents.

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  • 12. 

        True or False - Seals that are Not wrapped in plastic can become contaminated with dirt and debris or, depending on how long they have been on the shelf, show signs of dry rotting.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Seals that are not wrapped in plastic can become contaminated with dirt and debris or show signs of dry rotting if they have been on the shelf for a long time. This means that the statement "Seals that are not wrapped in plastic can become contaminated with dirt and debris or show signs of dry rotting" is true.

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  • 13. 

        True or False - You should never use silicone or other sealants on a rubber coated seal.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Silicone or other sealants should not be used on a rubber coated seal because they can damage the rubber and cause it to deteriorate. Rubber coated seals are designed to provide a tight and secure seal, and using sealants can interfere with their effectiveness. It is best to use compatible materials and methods recommended by the manufacturer for sealing rubber coated seals.

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  • 14. 

        True or False - Most seals require a specific tool designated by the manufacturer for each specific seal.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Most seals require a specific tool designated by the manufacturer for each specific seal. This means that different seals may have different requirements in terms of tools needed for installation or removal. Using the wrong tool can result in damage to the seal or the equipment it is being used on. Therefore, it is important to use the correct tool specified by the manufacturer to ensure proper installation and prevent any potential issues.

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  • 15. 

        Locking Nuts should always be replaced if you see:

    • A.

      Chisel marks

    • B.

      Rounded edges

    • C.

      Stripped threads

    • D.

      Heat damage (discoloration)

    • E.

      All the above

    Correct Answer
    E. All the above
    Explanation
    The correct answer is "All the above". This means that if you see any of the mentioned signs, such as chisel marks, rounded edges, stripped threads, or heat damage (discoloration), you should always replace the locking nuts. These signs indicate that the locking nuts have been damaged or compromised in some way, which can affect their effectiveness in securing the nuts in place. Therefore, it is important to replace them to ensure proper functionality and safety.

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  • 16. 

        The recommended end-play on a hub containing a spacer or crush sleeve is:

    • A.

      .005 - .010

    • B.

      .001 - .005

    • C.

      Zero end-play

    • D.

      None of the above

    Correct Answer
    C. Zero end-play
    Explanation
    Zero end-play is the recommended end-play on a hub containing a spacer or crush sleeve. This means that there should be no axial movement or play between the hub and the spacer or crush sleeve. This ensures that there is no excess clearance or looseness in the assembly, which could lead to improper functioning or damage.

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  • 17. 

        The final back-off on the RevHD Spindle Nut is:

    • A.

      ½ a turn

    • B.

      1 flat

    • C.

      1 dimple

    • D.

      No back-off required

    Correct Answer
    C. 1 dimple
    Explanation
    The final back-off on the RevHD Spindle Nut is 1 dimple. This means that after tightening the nut to the recommended torque, it should be loosened by turning it back one dimple. This back-off is necessary to ensure proper seating and alignment of the nut on the spindle.

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  • 18. 

        True or False - It is acceptable to remove the seal by striking the inner bearing from inside the hub to punch the seal out.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    It is not acceptable to remove the seal by striking the inner bearing from inside the hub to punch the seal out. This method can damage the bearing and the hub, leading to potential safety issues and costly repairs. It is recommended to use appropriate tools and techniques to remove the seal without causing any damage.

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  • 19. 

        RevHD One Piece Seals can be installed by:

    • A.

      Hand

    • B.

      Tool

    • C.

      Hammer

    • D.

      A block of wood

    • E.

      All the above

    Correct Answer
    E. All the above
    Explanation
    The correct answer is "All the above." This means that RevHD One Piece Seals can be installed by hand, using a tool, with a hammer, or by using a block of wood. This suggests that there are multiple methods or options available for installing these seals, allowing for flexibility and convenience depending on the tools or resources available to the installer.

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  • 20. 

        True or False - Anytime you replace the bearings, you should also replace the race.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    When replacing bearings, it is recommended to also replace the race. The race is the part of the bearing assembly that the bearings roll on. Over time, both the bearings and the race can wear down, leading to decreased performance and potential failure. By replacing both components together, it ensures that the new bearings will have a smooth surface to roll on, reducing the risk of premature wear and extending the lifespan of the bearing assembly. Therefore, the statement "Anytime you replace the bearings, you should also replace the race" is true.

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Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 15, 2017
    Quiz Created by
    Brianbeathard

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