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Applied air test – 3 / 60<br />
single vehicle<br />
• With emergency / parking<br />
brakes still released<br />
• Apply and hold service<br />
brake pedal for 1 minute<br />
• Wait for system to settle<br />
• Note and verbalize<br />
primary and Secondary<br />
air gauges<br />
• Time 1 minute (60<br />
seconds)<br />
• Note and verbalize<br />
Primary and Secondary<br />
air gauges<br />
• Gauges should not drop<br />
more than 3 psi / 60<br />
seconds = single vehicle