Event: Measuring Arm Up

1. Ensure that the truck brake system has the correct air pressure before proceeding.

2. Air pressure flows through Air Filter (55) and oil is injected into the system as it flows through Oiler (56).

3. Pressure exceeding the spring setting of the Pressure Reducing Valve (52.2) will cause that valve to shutoff and not allow the pressure to exceed the setting.

4. Air pressure can be viewed at gauge (47.1).

5. Cylinder (54) floats maintaining air pressure at the spring setting of the Pressure Reducing Valve (52.2).