Air Pressure Recovery Check
c2 dm 12.09.006
- Turn the ignition to the start position to start the engine or electric motor.
- With the transmission in neutral, increase the engine idle speed.
- Observe the air pressure gauges and measure the time it
takes to build pressure from 85 to 100 psi (586 to 690 kPa). This
should occur within 45 seconds.
Governor Cut Out Check
With the drivetrain running or the high-voltage system engaged, observe that the governor cut out pressure is between 120 to 130 psi (827 to 896 kPa).
Governor Cut In Check
With the drivetrain running or the high-voltage system engaged, depress the brake pedal several times to reduce the air pressure between 90 to 100 psi (621 to 690 kPa).
Spring Brake Test
Important: This test is performed differently depending on the type of drivetrain installed on the vehicle. Ensure that the test is completed in a safe location away from other vehicles.
Note: