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16 Cards in this Set
- Front
- Back
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what areas have a high rate of problems ?
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rear wheels
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what is the best method of determining the proper air pressure?
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checking eith a tire gauge
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how many reservoirs for air supply does the truck have ?
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2
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what does both braking systems consists of ?
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a compessor driven by the engine
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what happen when the brake pedal of an air brake system is depressed ?
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a line between the air supply reservoir and the brake air chamber assembly is opened
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what determine the amount of pressure being applied to the brake shoes?
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the force with which the air acts upon the sir chamber assembly diaphragm
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what happen when the brake is released
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the air in air chamber assembly will be released to the outside atomshere
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after the air is released what happen to the brakes
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return back to neutral postion
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whats located between the reservoirs
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the governor
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what happen when the pressure in the systems drops below the governor pressure
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the compressor will react to increase the pressure approriately
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what is the maximum pressure that the governor is set at
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approx 120 psi
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what preesure is consider low with a major leak in the system
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40 psi
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what is the first thing that would happen if the major leak would go below 40 psi
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low pressure indicator will come on in cab
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at what psi would the low indicator will come on in cab
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60 psi
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what the secind thing that happens when you have a major air leak
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tthe saftey actuaor will operate when the pressure goes below 40 psi
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how does the the saftey actuator works
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supplying air in the isolated reservoir to the emergency diaphragm in safety actuator and apply the brakes
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