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Model Isuzu AH-6WG1XYSA-01
Type 4-cycle water-cooled, direct injection
Aspiration Turbocharged
No. of cylinders 6
Rated power ISO 9249, net (Without Fan) H/P mode : 260 kW (349 HP) at 1 800 min-1 (rpm)
Rated power EEC 80/1269, net (Without Fan) H/P mode : 260 kW (349 HP) at 1 800 min-1 (rpm)
Rated power SAE J1349, net (Without Fan) H/P mode : 260 kW (349 HP) at 1 800 min-1 (rpm)
Maximum torque 1 580 Nm (161 kgf m) at 1 500 min-1 (rpm)
Piston displacement 15.681 L
Bore and stroke 147 mm x 154 mm
Batteries 2 x 12 V / 170 AH


Work mode selector General purpose mode / Attachment mode
Engine speed sensing system  
Main pumps 2 variable displacement axial piston pumps
Main pumps Maximum oil flow 2 x 360 L/min
Pilot pump 1 gear pump
Pilot pump Maximum oil flow 30 L/min

Hydraulic Motors

Travel 2 axial piston motors with parking brake
Swing 2 axial piston motors

Relief Valve Settings

Implement circuit 31.9 MPa (325 kgf/cm2)
Swing circuit 28.4 MPa (290 kgf/cm2)
Travel circuit 34.3 MPa (350 kgf/cm2)
Pilot circuit 3.9 MPa (40 kgf/cm2)
Power boost 34.3 MPa (350 kgf/cm2)

Hydraulic Cylinders

High-strength piston rods and tubes. Cylinder cushion mechanisms provided in boom and arm cylinders to absorb shock at stroke ends.


Hydraulic Filters

Hydraulic circuits use high-quality hydraulic filters. A suction filter is incorporated in the suction line, and full-flow filters in the return line and swing/travel motor drain lines.


Pilot controls. Hitachi's original shockless valve.

Implement levers 2
Travel levers with pedals 2


Revolving Frame

Welded sturdy box construction, using heavy-gauge steel plates for ruggedness. 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, shear-type ball bearing with inductionhardened internal gear. Internal gear and pinion gear are immersed in lubricant.
Swing parking brake is spring-set/hydraulic-released disc type.

Swing speed 9.0 min-1 (rpm)

Operator's Cab

Independent spacious cab, 1 005 mm wide by 1 675 mm high, conforming to ISO* Level I Standards. Reinforced glass windows on 4 sides for visibility. Operable front windows (upper and lower). Reclining seat with armrests; adjustable with or without control levers.
* International Standardization Organization



Tractor-type undercarriage. Welded track frame using selected materials.
Side frame bolted to track frame. Lubricated track rollers, idlers, and sprockets with floating seals.
Track shoes with triple grousers made of induction-hardened rolled alloy.
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 3
Lower rollers 8: ZX450-3
9: ZX450LC-3
Track shoes 47: ZX450-3
53: ZX450LC-3
Track guard 2

Travel Device

Each track driven by axial piston motor through reduction gear for counterrotation of the tracks. Sprockets are replaceable. Parking brake is spring-set/hydraulic-released disc type.
Automatic transmission system: High-Low.

Travel speeds High : 0 to 5.5 km/h
Low : 0 to 3.4 km/h
Maximum traction force 319 kN (32 500 kgf)
Gradeability 70 % (35 degree ) continuous



Equipped with 7.0 m boom, 3.4 m arm, and 1.90 m3 bucket (SAE, PCSA heaped).


Equipped with 7.0 m boom, 3.4 m arm, and 2.10 m3 bucket (SAE, PCSA heaped).

Note: Depending on the jobsites conditions, 750 mm grouser shoe and 900 mm grouser
shoe may not be recommended for rock, hard surface or forestry application.


Fuel tank 725.0 L
Engine coolant 55.0 L
Engine oil 57.0 L
Swing device (each side) 6.5 L
Travel device (each side) 11.0 L
Hydraulic system 560.0 L
Hydraulic oil tank 330.0 L


Boom and arms are of all-welded, box-section design. A number of booms and arms are available. Bucket is of all-welded, high-strength steel structure.

Backhoe Buckets

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