. MAINTENANCE RECOMMENDED FUEL, COOLANT, AND LUBRICANT MAINTENANCE RECOMMENDED FUEL, COOLANT, AND LUBRICANT NOTICE Use only diesel fuel. The engine mounted on this machine employs electronic control and a high-pressure fuel injection device to obtain good fuel consumption and good exhaust gas characteristics. For this reason, it requires high precision for the parts and good lubrication. If kerosene or other fuel with low lubricating ability is used, there will be a big drop in durability. Note 1: HTHS ( High-Temperature High-Shear Viscosity 150 ° C), specified by ASTM D4741 must be equal to or higher than 3.5 mPa-S. Komatsu EOS0W30 and EOS5W40 are the most suitable oils. Note 2:
Powertrain oil has different properties from engine oil. Be sure to use the recommended oils. Note 3: Hyper grease (G2-T, G2-TE) has a high performance. When it is necessary to improve the lubricating ability of the grease in order to prevent squeaking of pins and bushings, the use of G2-T or G2-TE is recommended. Note 4: Coolant 1) Komatsu genuine SUPERCOOLANT (AF-NAC) has the important function of preventing corrosion as well as preventing freezing. Even in the areas where freezing is not an issue, the use of antifreeze coolant is essential. Komatsu machines are supplied with SUPERCOOLANT (AF-NAC).
SUPERCOOLANT (AF-NAC) has excellent anticorrosion, antifreeze and cooling properties and can be used continuously for two years or 4000 hours. SUPERCOOLANT (AF-NAC) is strongly recommended wherever available. 2) For details of the density of the coolant, see "CLEAN INSIDE OF COOLING SYSTEM (PAGE 4-30)". coolant is supplied already diluted. In this case, add the pre-diluted fluid to keep the tank full. (Never dilute the coolant with ordinary water.) 3) To maintain the anticorrosion properties of coolant, always keep the density of coolant between 30% and 64%.
RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL When using commercially available oils other than Komatsu genuine oil, consult your Komatsu distributor. 4 - 18 Reservoir Capacity Engine oil pan Transmission case Steering, hoist oil tank Front suspension (each) Rear suspension (each) Differential case Specified Liters 86 318 180 16.5 11.3 95 US gal 22.7 84.0 47.6 4.4 3.0 25.1 Refill Liters 80 215 122 - - 95 US gal 21.1 56.8 32.2 - - 25.1 Reservoir Capacity Final drive case (each) Fuel tank Cooling system Specified Liters 32 780 157 US gal 8.5 206.1 41.5 Refill Liters 21 - - US gal 5.6 - -