Operation Section After Starting the Engine NOTE: At an oil temperature in the shifting circuit lower than -12 ° C, the transmission must be warmed-up for some minutes. This must be carried out in Neutral with an increased engine speed (about 1500 rpm). Until this oil temperature is reached, the Electronics remains in Neutral, and the symbol of the cold start phase will be indicated on the Transmission Display. Indication on the Transmission Display Observe all indicator lights and gauges frequently during operation, to make sure all systems are working properly. If any light comes on, have corrections made before operating truck.
After the indication on the Transmission Display is extinguished, the full driving program can be utilized out of "NEUTRAL". 4. The engine oil pressure indicator light (1), will not come ON with the engine running, unless there is low or no oil pressure. Stop the engine immediately, if the light comes ON. 5. The G643E engine MIL (Malfunction indicator Light) will not come ON with engine running, unless the fault or faults are stored in the memory of the engine control module (ECM). Stop the engine and check the electric engine control system if the light comes ON. Refer G643E Engine of this section.
(1) Engine oil pressure indicator light (2) Engine malfunction indicator light Typical Example 1. Alternator indicator light will be OUT in normal operation. If the light comes ON with the engine running, the alternator is not charging. Typical Example 2. Observe fuel gauge and service hour meter frequently to assure they are operating properly. 3. Observe the brake air pressure gauge and indicator light frequently (if equipped) while engine is running. Air pressure indicator must be in the green range. If light comes on, it indicates loss of air pressure. NOTE: Do not idle engines for prolonged periods of time. These engines can be started easily, even when hot. 69 WARNING