Operating Instructions - Section 30 7/09 OM3050 Page 30-18 NORMAL ENGINE SHUTDOWN PROCEDURE NOTE: If the engine must be shut down immediately, stop the truck, shift the directional control lever to PARK, turn the key switch OFF, then pull up on the engine stop switch located in the operator cab center console. Push the switch back down to enable engine operation. The following procedure must be followed to shut the engine off. 1. Stop the truck out of the way of other traffic. Park on a level surface, free of overhead power lines or other objects that could prevent raising the dump body. NOTE: There is also an engine stop switch located at ground level at the left front corner of the truck.
When this switch is activated, the engine will stop immediately, with no cooling off time. a. Reduce engine speed to idle. b. Place the directional control lever in PARK. This will apply the parking brake. DO NOT apply the wheel brake lock. NOTE: If the truck starts to roll, apply the service brakes and notify maintenance personnel immediately. 4. With the key switch OFF and engine stopped, wait at least two minutes. If any warning mes- sages are displayed, notify maintenance per- sonnel immediately. c. Ensure the parking brake applied indicator light in the dash display panel is illuminated. 5.
Ensure the steering circuit is completely bled down by turning the steering wheel back and forth several times. No front wheel movement will occur when hydraulic pressure is relieved. If the front tires continue to steer after the engine is stopped, notify maintenance personnel. 2. Place the rest switch in the ON position to put the AC drive system in rest mode. The NO DC LINK VOLTAGE status light and the NO PRO- PEL status light should be illuminated. 3. Turn the key switch counterclockwise to the OFF position to stop the engine. 6. Open the access panel at the left front side of the control cabinet.
Verify that the green link voltage light is illuminated and the DC bus volt- age gauge reads 0.0 V. Notify qualified drive system maintenance personnel if the green link voltage light fails to illuminate within five min- utes after engine shutdown. The engine may continue to run for up to three minutes after the key switch is turned OFF, if the park brake has been set. The engine may also stop before three minutes has elapsed if the engine coolant is not too hot, and the engine rpm’s and fuel delivery has been low for a period of time before the key switch was placed in the OFF position.
The Timed Engine shut- down status light in the monitor panel will be illuminated during the shutdown sequence. 7. Close and lock all windows. Remove the key from the key switch and lock the cab doors to prevent possible unauthorized truck operation. Properly dismount the truck. Put wheel chocks in place.