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Komatsu full power-shift planetary gear-type transmission. A modulating function assures shockless speed and direction changes without braking. An electrically controlled transmission allows fingertip control with speed and directional change levers. A neutral safety circuit allows starting only when the directional control lever is in neutral position.
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Torque converter - 3 element, single stage, single phase
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Four-wheel drive system. Full-floating front axle is fixed to the front frame. Center-pin-supported, full-floating rear axle with a large oscillation of +/-11°. A spiral bevel gear for reduction, a straight bevel gear for differential, and a planetary gear for final reduction.
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Service brakes: Hydraulically-actuated, wet multi-disc brakes actuated on four wheels.
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Parking brake: Spring applied, hydraulically released, dry disc type, on the front axle pinion shaft.
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Komatsu joystick/steering wheel control system featuring full hydraulic steering wheel plus joystick control. Steering wheel has full priority when used. Wide articulation angle of 40° to each side for a minimum turning radius of 36'4'' 11065 mm at the outside corner of the bucket with teeth.
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Includes rated capacity of lubricant, coolant, full fuel tank, 45/65-45-58PR (L5) tires, 17.0 yd³ 13.0 m³ spade nose bucket with teeth, ROPS canopy, steel cab, additional counterweight, operator, and other standard equipment.
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Z-bar loader linkage of high-tensile-strength steel provides maximum rigidity, fast cycle times, and superior breakout force. Rap-out loader linkage design enables shock dumping to remove sticky materials. Sealed loader linkage pins with dust seals and cord rings extend maintenance intervals. The bucket is also constructed of high-tensile strength steel. Bucket corner teeth increase penetrating force and minimize bucket wear.
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Proportional Pressure Control (PPC) system assures light-touch work equipment control. Little effort is required to operate the bucket and boom control levers, assuring smooth, responsive bucket/boom action. The bucket positioner and the boom kickout device facilitate repeated digging/loading operations.
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Two variable capacity piston pumps for loader control, two variable capacity piston pumps for switch and two fixed displacement pumps for steering control. Dual hydraulic speed system makes it possible to reduce cycle times. Rimpull is maintained when entering the pile, so digging capacity is increased. Boom speed is increased during lift to minimize cycle time.
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Select proper tires based on job requirements.
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