Operation - Section 3 OM3006.4 04/98 Page 3-38 Electronic Displays and Messages The reason why the engine start is not acceptable is also indicated at the same time. If the screen displays "PARKING BRAKE" , it means the park- ing brake is not applied. If the screen displays "T/M SHIFT LEVER", it means the shift lever is not in the neutral position. If any controller detects a fault, i3 is changed to the warning message screen i6 automatically. 4. Screen i4, Normal Display The engine will still start even if the screen indi- cates "PARKING BRAKE" while the shift lever must be in the neutral position for the engine to start.
After the engine starts the i2 screen changes to the second initial check, Check 2, screen i3 automatically. If any controller detects a fault, i2 is changed to the i6, Warning Message screen automatically. This screen is displayed while the truck is running and the range selector is in either a forward or reverse position. Once the range selector is changed from the neutral position the i4 screen is displayed until the key switch is turned to the off position, even is the range selector is returned to the neutral position. Time, current payload, total payload, and total number of cycles are indicated in this display.
If during the time the i3 screen was displayed the "DEPARTURE WAIT" was indicated because of either "STRG." and/or "DERATE" , they will remain on until the cause is discovered and repaired. 3. Screen i3, Initial Check 2 This screen is displayed after the engine is running but, before the range selector lever is moved from the neutral position. The indication will be that departure is acceptable or not. The payload meter is the source of the information regarding payload data. "MOM" is unable to indi- cate this data until it is sent by the payload meter. The payload meter will send this information to "MOM" when it recognizes the truck is in a loading configuration.
It will continue sending information until it realizes that the loading configuration is finished or the truck has changed to a dumping condition. After first recognizing a loading and then dumping configurations, the payload meter will then sent the data of total payload and total number of cycles. When "MOM" judges that departure is acceptable, "DEPARTURE OK" is indicated on the screen. If "MOM" judges that departure is not acceptable, "DEPARTURE WAIT" is indicated on the screen. The reason why departure is not acceptable is also indicated at the same time. Possible reasons could be, "STRG. PRESSURE TOO LOW" when the steering accumulator pressure is too low, or "ENG.
DERATE ON" when the engine system detects some severe fault which makes the engine power derate. The following situations are considered not nor- mal. a. If the truck was in a loading configuration and the key switch was turned off and then back on again, "MOM" will indicate no data of current payload, total payload, and total number of cycles. b. The data for total payload and total number of cycles is not indicated in "MOM" until the pay- load meter recognizes that the truck has started dumping the load. The truck is still able to depart even is "STRG.PRESSURE TOO LOW" or "ENG. DER- ATE ON" if in an emergency situation.
When the engine is started i2 is changed to the initial check i3 screen automatically. If the "LIGHTS OFF" area in the i3 screen is touched, then the back light of "MOM" is turned off and i3 is turned to a dark display.