12. OPERATION 12.17.4 METHOD OF CALCULATING WORK T.Km.P.H. Work T.Km.P.H. = average load per tire x average travel speed for one day Average travel speed = round trip distance x number of round trips per day/total operating hours per day Average load = (load when empty + load when loaded) /2 The total operating hours per day includes the stopping time and rest periods. The T.Km.P.H. in the table may differ slightly according to the tire maker, so for operations which require travel near the travel speed given in the table, please contact your Komatsu distributor.
12.17.5 PRECAUTIONS FOR LONG DISTANCE TRAVEL If the machine travels continuously at high speed for a long distance, there will be a marked increase in the generation of heat in the tire. This may cause premature damage to the tire, so be careful of the following points. Travel at high speed for long distances only when traveling empty. Check the tire inflation pressure before starting for the day when the tires are cold, and adjust to the following inflation pressure. HD465-5 HD605-5 NOTICE If the tires are used when the inflation pressure is less than the value given in the table above, the rim may be damaged.
Always keep the tire inflation pressure within +0 – +0.03 MPa (0.3 kgf/cm 2 , 4.3 PSI) of the value in the table above. Do not reduce the tire inflation pressure while traveling. The maximum travel speed must be kept to less than 40 km/h (24.9 MPH). Stop for at least one hour for every one hour of travel to allow the tires and other components to cool down. Never travel with water or dry ballast in the tires.
2-96 Tire size Inflation pressure 24.00-35-36PR (standard) 0.44 MPa (4.5 kgf/cm2, 63.9 PSI) 24.00R35flfl (if equipped) 0.69 MPa (7.0 kgf/cm2, 99.4 PSI) 21.00-35-36PR (if equipped) 0.54 MPa (5.5 kgf/cm2, 78.1 PSI) 21.00-35-32PR (if equipped) 0.49 MPa (5.0 kgf/cm2, 71.0 PSI) Tire size Inflation pressure 24.00R35flfl (Standard) 0.69 MPa (7.0 kgf/cm2, 99.4 PSI) 24.00-35-36PR (if equipped) 0.44 MPa (4.5 kgf/cm2, 63.9 PSI)