User manual ZENOAH KOMATSU HD255-5 BROCHURE

[. . . ] GROSS VEHICLE WEIGHT 47525 kg 104, 770 lb HD255-5 HD WA 250 255 Photo may include optional equipment. OFF-HIGHWAY TRUCK HD255-5 O F F - H I G H WAY T R U C K OFF-HIGHWAY TRUCK HD255-5 PRODUCTIVITY FEATURES Powerful KOMATSU SAA6D125E-3 Engine This engine delivers quicker acceleration and higher travel speed with the highest output per weight. Advanced technology, such as Common-Rail fuel Injection system, air-to-air aftercooler, and an efficient turbocharger enables the engine to meet the North American EPA Tier 2 emission regulations. High torque at low speed, impressive acceleration, and low fuel consumption ensures maximum productivity. OPERATOR ENVIRONMENT Wide, Specious Cab with Excellent Visibility The cab is integrated with ROPS and the structures conform to ISO 3471 and SAE J1040 standards. [. . . ] It provides a superior reliability and durability. Centralized Arrangement of Filters and Greasing Points The engine oil filter and fuel filter are centralized on the left side of the machine so that they can be serviced easily. These filter and greasing maintenances can be done from the ground level. Wet Multiple-Disc Brakes High Strength Body The side plates of the body are reinforced with cross ribs to increase the rigidity. Furthermore, the body is made of new steel which we developed in cooperation with a Japanese steel manufacturer having the best steel manufacturing technologies in the world. This ultra hard wear-resisting steel has hardness 25% higher than the con14mm 0. 55" 16mm 0. 63" ventional steel and about 2. 5 25mm 0. 98" times higher than the common lining steel. The wet multiple-disc brakes on rear wheels make maintenance and adjustment unnecessary. Flange Type Rim The flange type rims provide easy removal/installation of the tires. Cast steel Flat Face-to-Face O-Ring Seals Flat face-to-face O-ring seals are used to securely seal hydraulic hose and fuel line hose connections and to prevent oil or fuel leakage. Nipple Sealed DT Connectors Main harnesses and controller connectors are equipped with sealed DT connectors providing high reliability, water resistance and dust resistance. Hose O-ring VALUE-ENHANCING OPTIONS ARSC (Auto Retard Speed Control) ARSC, which enables to maintain the constant downhill travel speed, is available as an option. Even after setting the travel speed, the operator can still adjust it finely at increments of 1 km/h 0. 4MPH per click (±5 km/h 3. 1 MPH within max. Also, since temperature of retarder cooling oil is always monitored, the speed is automatically lowered. Desiccant Type Air Dryer Desiccant type air dryer is available as an option. It enables to get rid of the moisture and oil content in the compressed air that are provided from the air compressor. Therefore, reliability and durability of the air circuit is improved spectacularly. Front Brake Ratio Valve Settable range: 7 km/h 4. 3 MPH to 45 km/h 28. 0 MPH Display of set travel speed The front brake ratio valve lowers the air pressure at the beginning of braking operations to limit the efficiency of the front brake to reduce heating and wear of the brake pad. If the brake pedal is pressed more than half, however, the air presser isn't lowered, but the front brake works as designed. Automatic Greasing System ARSC set lever UP SET DOWN This releases operators and mechanics from burdensome greasing work on the undercarriage. Maintenance time is shortened, and productivity is enhanced. CANCEL Go down sloop at constant speed 4 5 HD255-5 O F F - H I G H WAY T R U C K OFF-HIGHWAY TRUCK HD255-5 SPECIFICATIONS ENGINE Model . 1375 N·m 140 kg·m 1, 013 lb·ft at 1, 400 rpm Fuel system . Dry type with double elements and precleaner, plus dust indicator BRAKES Brakes meet ISO J3450 and SAE J1473 standards. Air-over-hydraulic, oil-cooled, multiple-disc rear brakes act as retarder. A relay valve automatically actuates the service brakes when air pressure drops below the rated level. Manual operation is also possible. DIMENSIONS 70 00 23 mm '0" 61 3590 mm 11'9" 3375 mm 11'1" 525 mm 1'9" 2940 mm BODY Capacity: Struck . [. . . ] Usable rimpull depends upon traction available and weight on drive wheels. GROSS WEIGHT 25 20 EMPTY 35 30 45 40 55 50 LOADED 65 60 US ton ton 500 400 50 40 30 500 400 300 300 200 200 20 45. 0 40. 0 35. 0 30. 0 25. 0 100 90 80 70 60 50 100 90 80 70 60 50 40 10 9 8 7 6 5 4 3 20. 0 15. 0 14. 0 13. 0 12. 0 11. 0 10. 0 9. 0 8. 0 7. 0 6. 0 5. 0 40 30 30 20 20 2 4. 0 3. 0 10 10 1 0. 9 0. 8 0. 7 0. 6 0. 5 0 0 10 10 20 15 30 20 40 25 30 50 35 60 2. 0 70 40 km/h MPH TRAVEL SPEED BRAKE PERFORMANCE To determine brake performance: These curves are provided to establish the maximum speed and gearshift position for safer descents on roads with a given distance. From this weight resistance point, read horizontally to the curve with the highest obtainable speed range, then down to maximum descent speed the brakes can safely handle without exceeding cooling capacity. Grade distance: Continuous Descent GROSS WEIGHT 0 0 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100 100 ton 110 US ton Grade distance: 450 m (1480 ft) GROSS WEIGHT 0 0 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100 100 ton 110 US ton EMPTY LOADED EMPTY LOADED TOTAL RESISTANCE (GRADE+ROLLING) (%) -30 -30 -25 -25 F1 -20 F1 F2 F3 F4 F5 F6 -20 F2 F3 F4 F5 -10 -15 -15 -10 F6 -5 -5 0 0 10 10 20 30 20 40 50 30 60 40 70 80 50 90 100 60 km/h MPH 0 0 10 10 20 30 20 40 50 30 60 40 70 80 50 90 100 60 km/h MPH TRAVEL SPEED TRAVEL SPEED Grade distance: 600 m (1970 ft) GROSS WEIGHT 0 0 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100 100 ton 110 US ton Grade distance: 900 m (2950 ft) GROSS WEIGHT 0 0 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100 100 ton 110 US ton Grade distance: 1500 m (4920 ft) GROSS WEIGHT 0 0 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100 100 ton 110 US ton EMPTY LOADED EMPTY LOADED EMPTY LOADED TOTAL RESISTANCE (GRADE+ROLLING) (%) TOTAL RESISTANCE (GRADE+ROLLING) (%) -30 -30 -30 -25 -25 -25 F1 -20 F1 -20 F1 -20 F2 -15 F2 F3 F4 F5 -15 F2 F3 F4 F5 F6 -15 F3 F4 F5 F6 -5 -10 -10 -10 F6 -5 -5 0 0 10 10 20 30 20 40 50 30 60 40 70 80 50 90 100 60 km/h MPH 0 0 10 10 20 30 20 40 50 30 60 40 70 80 50 90 100 60 km/h MPH 0 0 10 10 20 30 20 40 50 30 60 40 70 80 50 90 100 60 km/h MPH TRAVEL SPEED TRAVEL SPEED TRAVEL SPEED www. Komatsu. com Printed in Japan 200410 IP. As(15) HESS611202 Materials and specifications are subject to change without notice. Japan. TOTAL RESISTANCE (GRADE+ROLLING) (%) TOTAL RESISTANCE (GRADE+ROLLING) (%) TOTAL RESISTANCE (GRADE+ROLLING)% R I MPU LL [. . . ]