Hubs & Internal Components
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| What wheel type is used where max load capacity & rough terrain is considered when spec'd | Cast Spoke
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| True or false? A tire mounted to a rim, and the rim is mounted to a wheel. | True
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| What is max permitted runout for a truck cast spoke wheel after adjustment? | 1/8"
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| Which side of a truck equipped with stud piloted disc wheels has left-handed thread lug nuts? | Left
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| How are truck wheel bearings lubed? | Wet Hub (Oil bath)
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| What is the best practice for removing a bearing race from an aluminum hub? | Preheat hub in Thermostatically oven then tap bearing race with steel drift
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| A cast spoke wheel is best suited to what kind of environment? | Harsh, construction site
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| Advantage of truck disc wheel compared to cast spoke wheels? | 1: Fewer alignment problems; 2: Lighter weight; 3:Extend tire life
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| Where is the spacer ring place, when mounting a set of duals to a cast spoke wheel? | between inboard and outboard tires
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| Is a dial indicator a method of measuring runout on a mounted tire? | Yes
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| Channel, corrugated and corrugated channel uses what type of ring? | Spacer ring
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| What method is used to adjust wheel bearings on all non-unitized wheel hubs? | TMC method
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| What is a seal driver and hammer used for? | To install a typical truck wheel seal.
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| When using the ATA Technical and Maintenance council method of setting truck wheel ends, what is the first torque setting? | 200 lbs.-ft
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| You just completed a TMC wheel end adjustment, what is the tool used and what are the specs? | Dial indicator; measurement should be between .001 - .005 inches.
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| what is the torque required for wheel installation in a ConMet unitized hub system? | 300 lbs. -ft
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| Does the wheel bearing on a unitized hub system require adjustment during the life of the hub? | NO
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| Disc wheels nuts and studs on the left side of a truck often use right handed thread | False
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| In a cast spoke wheel, the wheel hub is integral with wheel? | Yes
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| What component is tightened before checking end play? | Wheel bearing adjusting nut
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| What is the purpose of the hub? | House the wheel bearings and provide a mounting point for the wheels.
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| What is the service industry's leading causes of wheel end failure? | Wheel bearing mis-adjustment
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| What are the three types of hubs? | 1: Stud piloted (LH & RH thread; tapered) 2: Hub piloted (RH thread; Flat lug nuts; pressed in) and 3: Cast/ Spoke type (Dayton; RH thread; Split rim)
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