User manual ZENOAH KOMATSU HD325-7R BROCHURE

[. . . ] The result: the best gear for any driving situation. Payload Meter II (PLM II ) (Option) PLM II allows the production volume and the working conditions on the dump truck to be analyzed and controlled directly via a personal computer. The system can store up to 2900 working cycles. Komatsu develops and produces all major components, such as engines, electronics and hydraulic components, in house. With this "Komatsu Technology, " and adding customer feedback, Komatsu is achieving greate advancements in technology. [. . . ] It enables an ideal change in clutch modulation pressure and torque cut-off timing in response to travel conditions. This system and newly added "skip-shift" function ensure smooth shifting and responsive acceleration. "Skip-shift" function Optimum travel speed automatically selected in response to angle of ascent. Shift down Skip-shift F4 F1 Reduced frequenShift hold cy of downshift F4 and smoother F4 operation are provided. Conventional Built-in ROPS/FOPS cab These structures conform to ISO3471 ROPS standard, and ISO 3449 FOPS standard. Ergonomically designed cab The ergonomically designed operator's compartment makes it very easy and comfortable for the operator to use all the controls. The result is more confident operation and greater productivity. Viscous cab mounts Viscous mounts reduce the noise transmitted to the cab and achieve a quiet 77 dB(A) noise level. Easy-to-See instrument panel The instrument panel makes it easy to monitor critical machine functions. In addition, a caution light warns the operator of any problems that may occur. This makes the machine user friendly and easy to service. Shift down Shift down Shift down F2 F1 Electric body dump control The low effort lever makes dumping easy. A positioning sensor is installed for dump body control which significantly reduces the shock made by the lowering of the dump body. F3 F2 Ideal driving position settings The 5-way adjustable operator seat and the tilt-telescopic steering column provide an optimum driving posture, for increased driving comfort and more control over machine operation. The suspension seat dampens vibrations transmitted from the machine and reduces operator fatigue as well as holding the operator securely to assure confident operation. 78mm 3" width seat belt is provided as standard equipment. Hydropneumatic suspension for all terrains The hydropneumatic suspension assures a comfortable ride even over rough terrain and ensures maximum productivity and operator confidence. F4 F3 Nitrogen gas Oil F4 Three-mode hydropneumatic suspension (Automatic suspension) (Option) Suspension mode is automatically switched to one of three stages (soft, medium and hard) according to load and operating conditions, for a more comfortable and stable ride. Supplementary steering and secondary brake Supplementary steering and secondary brake are standard features. Fully hydraulic braking systems eliminate the air system so air bleeding is not required, and water condensation that can lead to contamination, corrosion and freezing is eliminated. Automatic Spin Regulator (ASR) (Option) ASR automatically prevents the rear tires on either side from slipping on soft ground for optimal traction. Rigorous dump body design The body is built of 130 kg/mm2 184, 900 PSI wear-resistant high-tensile steel with a Brinell hardness of 400. The side and bottom plates of the dump section are reinforced with ribs for added strength. Centralized greasing points (Option) Greasing points are centralized at three locations, it enables to approach from ground level. Pedal-operated secondary brake If there should be a failure in the foot brake, the parking brake and front disc brakes are activated as a pedal operated secondary brake. In addition, when hydraulic pressure drops below the rated level, the parking brake is automatically actuated. Extended oil change intervals Reliable hydraulic system The oil cooler is installed in the radiator lower tank, improving the reliability of the hydraulic system during sudden temperature rises. Further, in addition to the main filter, a 25micron line filter is at the entrance to the transmission control valve. This system helps to prevent secondary faults. Lead-free radiator In addition to compliance with emission regulations, a leadfree aluminum core is used for the radiator to meet with global environmental requirements. In order to minimize operating costs, oil change intervals have been extended: Engine oil 500 hours Hydraulic oil 4000 hours Centralized arrangement of filters The filters are centralized so that they can be serviced easily. Brake cooling oil recovery tank To protect the environment, a tank is installed to recover brake cooling oil in the event of brake floating seal leakage. Flat face-to-face O-ring seals Flat face-to-face O-ring seals are used to securely seal all hydraulic hose connections and to prevent oil leakage. Nipple Hose O-ring Protection functions supported by electronic control Item Function 8 Downshift inhibitor Over-run inhibitor Reverse inhibitor Forward/Reverse shift inhibitor Anti-hunting system Neutral safety Even if the driver downshifts accidentally, a speed appropriate to the current gear is automatically set, preventing over-runs. The vehicle is prevented from moving backward when operating the body. This device makes it impossible to shift from forward to reverse when the vehicle's speed surpasses 4 km/hour. When running near a shift point, smooth automatic shifting takes place. [. . . ] 67% 3 2 1 2. 0 1 0. 5 0 0 5 10 10 20 15 30 20 40 25 30 50 35 60 40 70 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 50 20 30 EMPTY Grade distance: 450 m (1, 480 ft) GROSS WEIGHT 0 0 10 50 20 30 EMPTY 100 40 50 60 150 70 80 LOADED 200 90 x103 lb 3 100 x10 kg TOTAL RESISTANCE (GRADE + ROLLING) (%) 200 x103 lb 3 100 x10 kg RIMPULL 100 40 50 60 150 70 80 LOADED STEERING SYSTEM Type . Fully hydraulic power steering with two double-acting cylinders Supplementary steering . [. . . ]