OPERATION MACHINE OPERATIONS AND CONTROLS In Cold Weather Areas 3 (AUTOMATIC WARMING-UP OPERATION) This machine is equipped with an automatic warming-up device. When the engine is started, if the engine water temperature is low (below 30 °C), the warming-up operation is car- ried out automatically. The automatic warming-up operation is canceled if the engine water temperature reaches the specified tempera- ture (30 °C) or if the warming-up operation is continued for 10 minutes. If the engine water temperature or hydrau- lic oil temperature are low after the automatic warming-up operation, warm the engine up further as follows.
NOTICE q Do not suddenly accelerate the engine before the warming-up operation is completed. Do not run the engine at low idling or high idling con- tinuously for more than 20 minutes.This will cause leakage of oil from the turbocharger oil supply piping. If it is necessary to run the engine at idling, apply a load from time to time or run the engine at a mid-range speed. q Never carry out operations or operate the levers sud- denly when the hydraulic oil is still at low temperature. Always continue the warming-up operation until the work equipment monitor display is green. This will extend the service life of the machine. A 1.
Turn fuel control dial (2) to the low idling (MIN) position and run the engine under no load until the engine water tem- perature monitor gives a green display. 2. To raise the hydraulic oil temperature quickly, use the oper- ating mode switch on the machine monitor to set to A mode (heavy-duty operation mode). MIN 3. Turn fuel control dial (2) to the medium speed position (a). MIN 3-79