OM3020.1 12/99 Operation - Section 3 Operating Instructions Page 3-11 DELAYED ENGINE SHUTDOWN PROCEDURE 1. Stop the truck out of the way of other traffic on a level surface and free of overhead power lines or other obstructions (in case dump body should need to be raised). a. Reduce engine speed to low idle. b. Place the directional Selector Switch (2, Figure 3-4) in “ N eutral”. c. Apply the Parking Brake switch (13, Figure 3-6). Be sure the “Parking BrakeApplied” indicator light in the overhead display panel (A3, Figure 3-7) is illuminated. 2. Place REST switch (26, Figure 3-6) in “On” position to put AC Drive System in “R ST” mode of operation.
Be sure the “REST” indicator light in the overhead panel (B6, Figure 3-7) is illuminated. 3. Refer to INSTRUMENT PANEL AND INDICATOR LIGHTS section for location on instrument panel of Engine Shutdown Switch with 5 Minute Idle Timer Delay (2, Figure 3-6). This is a 3-position rocker-type switch (Off-On-Momentary). a. Press top of switch to the “On” (center position), then press firmly to the “Momentary” (upper position) and hold this position briefly to activate the 5 Minute Idle Timer (switch is spring-loaded to return to “On” position when released). At the SAME time while holding the “Momentary” switch position, turn the Keyswitch counterclockwise to the “Off” position .
When the engine stops after the 5 minute idle period, the hydraulic bleeddown timer will be activated and turn off the 24 VDC electric circuits controlled by the keyswitch. Engine WILL NOT SHUT DOWN, if keyswich is not turned "Off" in this manner. NOTE : To cancel the 5 Minute Idle Timer sequence, press Timer Delay Shutdown switch to the “Off” (lower) position. If keyswitch is in “Off” position, engine will stop. If keyswitch is in “On” position, engine will continue to run . If engine does not shutdown with keyswitch, use Engine Shutdown Switch (8, Figure 3-4) on operator cab center console, and hold this switch down until engine stops.
The Ground Level Shutdown Switch will also stop the engine during this time-out. b. When the Engine Shutdown Timer has been activated, the Timer Delay indicator light in the overhead display panel (C4, Figure 3-7) will illuminate to indicate that the shutdown timing sequence has been started. The engine will continue to run at Idle RPM for approximately 5 minutes to allow for proper engine cool-down before stopping. c. After engine has stopped, perform steps 4, 5, and 6, in “NORMAL ENGINE SHUTDOWN PROCEDURE” above.