. OPERATION OPERATION WARNING the 5. After carrying out the warming-up operation, check that the gauges and caution lamps are normal. If there is any abnormality, carry out maintenance or repair. Run the engine under a light load until engine water temperature gauge (2) and torque converter oil temperature gauge (3) are in the green range. 6. Check for abnormal exhaust gas color, noise, or vibration. If any problem is found, contact your Komatsu distributor. 3 - 123 To warm up the hydra ulic oil in cold areas, do as follows. 2. After carrying out engine rotation is lever to the FREE 3. Operate the bucke return it to the HO hydraulic oil. Relieve the circuit sec.
This brings the oil warm up the oil. 4. Slowly operate the steering valve. the warming-up operation, check smooth, then set the work equipm position (F). t control lever to the TILT position LD position (B) repeatedly to war at the TILT position (A) for a maxim steering wheel to the left and the ri ght about 10 times to warm up t he hydraulic oil inside the If the steering wheel is o low, there may be a time perated and stopped while the oil temp lag before the machine stops turning. In this case, use the fra warm-up operation in a w Do not relieve the hydrau me lock bar to ensure safety, and pe ide place. lic oil in the circuit continuously for m seconds.
NOTICE Turn the steering wheel a little and stop in that position. Confirm that the machine turns by an angle e quivalent to the amount that the steering wheel is turn ed. REMARK The rotating speed of abnormality. the cooling fan differs according to the following conditions, but this does not indicate any The cooling fan speed increases when the hydraulic oil te mperature, engine coolant tem perature, or transmission oil temperature are hig h. oling fan is rotating in reverse, it rotates at a fixed speed proportional to the engine speed, However, when the co tates at a fixed speed proportio nal to the engine speed, regardless of any oil o r coolant temperature.