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ZX8U-2

ZX8U-2

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Description

Model Code ZX8-2
Engine Rated Power 9.5 kW (12.9 PS)
Operating Weight 1100 kg
Backhoe Bucket 0.022 m3
ENGINE


Model Yanmar 3TNV70
Type Water-cooled, 4-cycle, 3-cylinder swirl combustion chamber injection type diesel engine
Rated power ISO 9249, net 9.5 kW (12.9 PS) at 2100 min-1 (rpm)
Maximum torque 50.5 N m (5.1 kgf m) at 1500 min-1 (rpm)
Piston displacement 0.854 L (854 cc)
Bore and stroke 70 mm x 74 mm
Batteries 1 x 12 V/36 Ah

HYDRAULIC SYSTEM


The proven 2-pump sysytem has been improved to make combined operations and fine control easier and smoother.
Main pumps 2 gear pumps
Main pumps Maximum oil flow 2 x 10.6 L/min
Pilot pump 1 gear pump
Pilot pump Maximum oil flow 5.3 L/min


Relief Valve Settings
Main pumps circuit 17.7 MPa (180 kgf/cm2)
Pilot circuit 3.9 MPa (40 kgf/cm2)


Hydraulic Cylinders
High-strength piston rods and tubes. Cylinder cushion mechanisms provided in boom raise and arm roll-in circuits to absorb shocks at stroke ends.

Dimensions


CONTROLS


Control is all mechanical.

SWING MECHANISM


Hight-torque, orbit motor. Swing circle is single-row, shear-type ball bearing with induction-hardened internal gear. Internal gear are immersed in lubricant.
Swing speed 8.5 min-1 (8.5 rpm)

UNDERCARRIAGE


Tracks
Tractor-type undercarriage. Welded track frame using carefully selected materials. Side frame extends by span cylinder.

Numbers of Rollers on Each Side
Lower rollers 2

Travel Device
Each track driven by a high-torque, 2-speed axial piston motor through planetary reduction gear, allowing counter-rotation of the tracks.
Travel speeds (with rubber shoes) High : 0 to 4.0 km/h
Low : 0 to 2.0 km/h
Gradeability 58 % (30 degreess) continuous

WEIGHTS AND GROUND PRESSURE


Equipped with 0.70 m arm and 0.022 m3 (ISO 7451 capacity) bucket.


SERVICE REFILL CAPACITIES


Fuel tank 16.0 L
Engine coolant 3.3 L
Engine oil 2.8 L
Travel device (each side) 0.33 L
Hydraulic system 18.0 L
Hydraulic oil tank (Reference oil level) 12.0 L

BACKHOE ATTACHMENTS


BUCKETS

A: General digging B: Light-duty digging


Note:
The illustration shows the ZX8-2 equipped with 0.70 m arm and 180 mm rubber shoes.

Unit: mm


METRIC MEASURE
Notes:
1. Ratings are based on ISO 10567.
2. Lifting capacity of the ZAXIS Series does not exceed 75 % of tipping load with the machine on firm, level ground or 87 % full hydraulic capacity.
3. The load point is the centre-line of the bucket pivot mounting pin on the arm.
4. *Indicates load limited by hydraulic capacity.
5. 0 m = Ground.




ZX8-2 ROLL BAR VERSION, BLADE ABOVE GROUND


ZX8-2 ROLL BAR VERSION, BLADE ON GROUND


ZX8-2 ROLL BAR VERSION, BLADE ABOVE GROUND, LONG ARM


ZX8-2 ROLL BAR VERSION, BLADE ON GROUND, LONG ARM


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