Specifications :
ENGINE
| Model | Isuzu AH-6HK1X |
| Type | 4-cycle water-cooled, direct injection |
| Aspiration | Turbocharged, intercooled |
| No. of cylinders | 6 |
| Rated power ISO 9249, net | H/P mode : 202 kW (271 HP) at 1 900 min-1 (rpm) |
| Rated power EEC 80/1269, net | H/P mode : 202 kW (271 HP) at 1 900 min-1 (rpm) |
| Rated power SAE J1349, net | H/P mode : 202 kW (271 HP) at 1 900 min-1 (rpm) |
| Maximum torque | 1 080 Nm (110 kgf m) at 1 500 min-1 (rpm) |
| Piston displacement | 7.790 L |
| Bore and stroke | 115 mm x 125 mm |
| Batteries | 2 x 12 V / 128 Ah |
HYDRAULIC SYSTEM
| Work mode selector | Digging mode / Attachment mode |
| Main pumps | 2 variable displacement axial piston pumps |
| Main pumps Maximum oil flow | 2 x 288 L/min |
| Pilot pump | 1 gear pump |
| Pilot pump Maximum oil flow | 32 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/cm2) |
| Swing circuit | 34.3 MPa (350 kgf/cm2) |
| Travel circuit | 34.3 MPa (350 kgf/cm2) |
| Pilot circuit | 3.9 MPa (40 kgf/cm2) |
| Power boost | 36.3 MPa (370 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.
Dimensions
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.
CONTROLS
Pilot controls. Hitachi's original shockless valve.
| Implement levers | 2 |
| Travel levers with pedals | 2 |
UPPER STRUCTURE
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
induction-hardened internal gear. Internal gear and pinion gear are
immersed in lubricant.
Swing parking brake is spring-set/hydraulic-released disc type.
Swing parking brake is spring-set/hydraulic-released disc type.
| Swing speed | 10.7 min-1 (rpm) |
Operator's Cab
Independent spacious cab, 1 005 mm wide by 1 795 mm high,
conforming to ISO* Standards. (OPG top guard fitted Level II (ISO 10262)
compliant cab) Reinforced glass windows on 4 sides for visibility.
Reclining seat with armrests; adjustable with or without control levers.
* International Standardization Organization
Reclining seat with armrests; adjustable with or without control levers.
* International Standardization Organization
UNDERCARRIAGE
Tracks
Tractor-type undercarriage. Welded track frame using selected materials.
Side frame welded 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.
Side frame welded 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 | 2 |
| Lower rollers | 8 |
| Track shoes | 46 |
| Full track guard | 1 |
Travel Device
Each track driven by 2-speed axial piston motor through
planetary reduction gear for counterrotation of the tracks. Sprockets
are replaceable.
Parking brake is spring-set/hydraulic-released disc type. Travel shockless relief valve built in travel motor absorbs shocks when stopping travel.
Automatic transmission system: High-Low.
Parking brake is spring-set/hydraulic-released disc type. Travel shockless relief valve built in travel motor absorbs shocks when stopping travel.
Automatic transmission system: High-Low.
| Travel speeds | High : 0 to 5.0 km/h Low : 0 to 2.9 km/h |
| Maximum traction force | 322 kN (32 800 kgf) |
| Gradeability | 70 % (35 degree) continuous |
WEIGHTS AND GROUND PRESSURE
Equipped with 6.4 m R-boom, 3.2 m R-arm, and 1.5 m3 R-bucket (SAE, PCSA heaped) .
SERVICE REFILL CAPACITIES
| Fuel tank | 630.0 liters |
| Engine coolant | 32.0 liters |
| Engine oil | 41.0 liters |
| Swing device (each side) | 17.0 liters |
| Travel device (each side) | 9.2 liters |
| Hydraulic system | 374.0 liters |
| Hydraulic oil tank | 298.0 liters |
BACKHOE ATTACHMENTS
Boom and arms are of all-welded, box-section design. A number
of boom and arms are available. Bucket is of all-welded, high-strength
steel structure. The ZX400R-3 is a heavy duty type and euipped with a
reinforced R-boom and R-arm.
Backhoe Buckets
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