Event: Gear Box Neutral (On-Service Bay Only)

1. See “Pump Running” for first sequence of this event.

2. See “Drum Brake Release” for second sequence of this event.

3. The operator selects the Neutral position of the selection switch and Directional Control Valve (2A) is energized and air pressure flows through the valve to the #3 port of Air Cylinder (21).

4. The gearbox in shifted to the neutral position.

5. Exhaust from the #1 and #3 ports of Air Cylinder (21) is vented through Directional Control Valves (1A and 3A) respectively.