. MAINTENANCE RECOMMENDED FUEL, COOLANT, AND LUBRICANT MAINTENANCE RECOMMENDED FUEL, COOLANT, AND LUBRICANT NOTICE Always use diesel oil for the fuel. To ensure good fuel consumption characteristics and exhaust gas characteristics, the engine mounted on this machine uses an electronically controlled high-pressure fuel injection device. This device requires high precision parts and lubrication, so if low viscosity fuel with low lubricating ability is used, the durability may drop markedly. 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: Supercoolant (AF-NAC) 1) Coolant has the important function of anticorrosion as well as antifreeze. Even in the areas where freezing is not an issue, the use of antifreeze coolant is essential. Komatsu machines are supplied with Komatsu Supercoolant AF-NAC.
Komatsu Supercoolant AF-NAC has excellent anticorrosion,antifreeze and cooling propertiesand can be used continuously for 2 years or 4000 hours. Komatsu Supercoolant AF-NAC is strongly recommended wherever available. 2) For details of the Supercoolant AF-NAC density, see "CLEAN INSIDE OF COOLING SYSTEM (PAGE 4-27)". Supercoolant AF-NAC is supplied already diluted. In this case, add the pre-diluted fluid to keep the tank full. (Never dilute the Supercoolant with ordinary water.) 3) To maintain the anticorrosion properties of Supercoolant AF-NAC, always keep the density of Supercoolant between 30% and 68%.
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 - 12 Reservoir Capacity Engine oil pan Transmission case (Incl.
brake oil tank) Hydraulic tank Front suspension (each) Rear suspension (each) Front differential case Specified Liters 58 270 267 6 4.2 22.5 US gal 15.32 71.33 70.54 1.59 1.11 5.94 Refill Liters 50 115 180 6 4.2 22.5 US gal 13.21 30.38 47.56 1.59 1.11 5.94 Reservoir Capacity Front final drive case (each) Center differential case Center final drive case (each) Rear differential case Rear final drive case (each) Fuel tank Cooling system Specified Liters 6.5 39.5 5.5 35 5.5 500 114.5 US gal 1.72 10.44 1.45 9.25 1.45 132.10 30.25 Refill Liters 6 39.5 5.0 35 5.0 495 106.5 US gal 1.59 10.44 1.32 9.25 1.32 130.78 28.14