Air Shutoff - Test
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| Illustration 1 | g01402506 |
Air shutoff with the valve mechanism in the OPEN position | |
Note: Do not start the engine. Ensure that the engine control is in the "OFF" position.
- Ensure that the valve mechanism is latched in the OPEN position. Turn on the power to the engine control panel. The valve mechanism should remain open. If the valve mechanism does not remain open, check the wiring for the air shutoff switches.
- With the power for the engine control panel in the ON position, activate the "EMERGENCY STOP" switch. If the valve mechanism closes, proceed to step 3. If the valve mechanism does not close, check the wiring for the air shutoff switch and check the wiring for the solenoids. Activate the "EMERGENCY STOP" switch again. When the valve mechanism closes, proceed to step 3.
- Reset the valve mechanism to the CLOSED position. Operate the engine normally. Ensure that the valve mechanism continues to be latched.
Refer to the Troubleshooting Guide, "Air Shutoff System" information in your Service Manual for further information about the electrical system for the air shutoff system.
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