Page 16 - Hitachi_ZX290

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16

SPECIFICATIONS

ENGINE

Model ........................... Isuzu AL-4HK1X

Type . ............................ 4-cycle water-cooled, common rail direct injection Aspiration . .................... Variable geometry turbocharged, intercooled,

cooled EGR Aftertreatment ............... Muffer flter No. of cylinders ............. 4 Rated power

ISO 9249, net ............. 140 kW (188 HP) at 2 100 min -1 (rpm) EEC 80/1269, net ....... 140 kW (188 HP) at 2 100 min -1 (rpm) SAE J1349, net . ......... 140 kW (188 HP) at 2 100 min -1 (rpm) Maximum torque . ......... 652 Nm (66.5 kgfm) at 1 800 min -1 (rpm) Piston displacement . .... 5.193 L Bore and stroke ............ 115 mm x 125 mm Batteries ....................... 2 x 12 V / 88 Ah

HYDRAULIC SYSTEM

Hydraulic pumps

Main pumps . ................ 3 variable displacement axial piston pumps Maximum oil fow ........ 2 x 236 L/min

1 x 210 L/min Pilot pump .................... 1 gear pump Maximum oil fow ........ 37.3 L/min

Hydraulic Motors

Travel ............................ 2 variable displacement axial piston motors Swing ........................... 1 axial piston motor

Relief Valve Settings

Implement circuit . ......... 34.3 MPa (350 kgf/cm ² ) Swing circuit ................. 32.4 MPa (330 kgf/cm ² ) Travel circuit .................. 34.3 MPa (350 kgf/cm ² ) Pilot circuit .................... 3.9 MPa (40 kgf/cm ² ) Power boost ................. 38.0 MPa (388 kgf/cm ² )

Hydraulic Cylinders

Quantity Bore Rod diameter

Boom 2 135 mm 95 mm

Arm 1 150 mm 105 mm

Bucket 1 135 mm 90 mm

Positioning *1 1 150 mm 100 mm

*1 : For 2-piece boom

UPPERSTRUCTURE

Revolving Frame

D-section frame for resistance to deformation.

Swing Device

Axial piston motor with planetary reduction gear is bathed in oil. Swing circle is single-row. Swing parking brake is spring-set/hydraulic-released disc type. Swing speed ................. 10.3 min -1 (rpm) Swing torque ................ 90.5 kNm (9 230 kgfm)

Operator's Cab

Independent spacious cab, 1 005 mm wide by 1 675 mm high, conforming to ISO* Standards.

* International Organization for Standardization

UNDERCARRIAGE

Tracks

Heat-treated connecting pins with dirt seals. Hydraulic (grease) track adjusters with shock-absorbing recoil springs.

Numbers of Rollers and Shoes on Each Side

Upper rollers ................. 2 Lower rollers ................. 8 Track shoes .................. 48 Track guard . ................. 1

Travel Device

Each track driven by 2-speed axial piston motor. Parking brake is spring-set/hydraulic-released disc type. Automatic transmission system: High-Low. Travel speeds . .............. High : 0 to 5.2 km/h

Low : 0 to 3.1 km/h

Maximum traction force .. 246 kN (25 100 kgf)

Gradeability . ................. 70% (35 degree) continuous

SOUND LEVEL

Sound level in cab according to ISO 6396 ................................. LpA 70 dB(A) External sound level according to ISO 6395 and

EU Directive 2000/14/EC .......................................................LwA 103 dB(A)

SERVICE REFILL CAPACITIES

Fuel tank ........................................................................................... 510.0 L Engine coolant .................................................................................... 26.0 L Engine oil ............................................................................................ 27.0 L Swing device . ..................................................................................... 11.7 L Travel device (each side) ........................................................................ 9.2 L Hydraulic system ............................................................................... 290.0 L Hydraulic oil tank ............................................................................... 156.0 L

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