User manual ZENOAH KOMATSU HD255-5 BROCHURE

[. . . ] It enables to position the truck at a desired place easily and quickly. A-frame Automatic Supplementary Steering and Secondary Brakes 7. 0m 23'0" Photo may include optional equipment. Automatic supplementary steering and secondary brakes are employed as a standard. If an abnormality occurs in the steering hydraulic circuits or engine stops suddenly, this supplementary steering system works automatically and enables to continue steering operation. Steering: ISO 5010, SAE J1511, SAE J53 Brakes: ISO 3450, SAE J1473 < / Hydropneumatic Suspension for All Terrains The hydropneumatic suspension assures comfortable ride even over rough terrain and ensures maximum productivity and operator confidence. ¤ / Large-sized rear view mirror ¤ Rubber mudguard < Rubber mudguard (at right platform) 2 3 HD255-5 O F F - H I G H WAY T R U C K OFF-HIGHWAY TRUCK HD255-5 EXCELLENT RELIABILITY AND DURABILITY Komatsu Components Komatsu manufactures engine, torque converter, transmission, hydraulic units, and electrical devices on this dump truck. Komatsu dump trucks are manufactured with an integrated production system under a strict quality control system. EASY MAINTENANCE Extended Oil Change Intervals In order to minimize operating costs, oil change intervals have been extended. [. . . ] 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 . Turbo-charged and air-to-air after-cooled Number of cylinders . 11. 04 ltr 674 in3 Flywheel horsepower ISO 9249 / SAE J1349. Gross 241 kW 323 HP Net 235 kW 316 HP Rated rpm . 1375 N·m 140 kg·m 1, 013 lb·ft at 1, 400 rpm Fuel system . Electronically controlled Lubrication system Method . Dry type with double elements and precleaner, plus dust indicator BRAKES Brakes meet ISO J3450 and SAE J1473 standards. Air-over-hydraulic, caliper disc type Rear . Air-over-hydraulic, oil-cooled multiple-disc type Parking brake . Spring applied, internal-expanding brake Retarder . 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 . 160 kg/mm2 227, 500 psi high tensile strength steel Structure. V-shape body with flat-bottom Material thickness: Bottom . 14 mm 0. 55" Target area (inside length x width) . 4570 mm x 2995 mm 15'0" x 9'10" Dumping angle . Exhaust heating R 49 -2 5-2 8 P . 0 0 -2 5-2 8 P . 0 0 TRANSMISSION Torque converter . [. . . ] Gal Torque converter, transmission and retarder cooling . Box-sectioned structure Standard equipment may vary for each country, and this specification sheet may contain attachments and optional equipment that are not available in your area. Please consult your Komatsu distributor for detailed information. 7 6 R 9'8" 7075 mm 23'3" 6770 mm 22'3" 4570 mm 15'0" 515 mm 1'8" 16 2225 mm 7'4" 2995 mm 9'10" 3200 mm 10'6" 16 kN US ton ton TRAVEL PERFORMANCE To determine travel performance: Read from gross weight down to the percent of total resistance. [. . . ]