PC 120
Specifications
Engine
| Type | 4-cycle water-cooled, common rail direct injection |
| No. of cylinders | 4 |
| Maximum torque | 89 HP at 2200 RPM |
| Piston displacement | 3.26 L |
| Bore and stroke | 95 mm x 115 mm mm |
Hydraulic System
Type . . . . . . . . . . . . . . . HydrauMind (Hydraulic Mechanical Intelligence New Design) system. Closed-center system with load-sensing valves and pressure-compensated valves.
No. of selectable working modes . . . . . . . . . . . . . . . . . . . . 5
Main pump:
Type . . . . . . . . . . . . . Variable-displacement piston pump
Pumps for. . . . . . . . . . . . . . . Boom, arm, bucket, swing, and travel circuits
Maximum flow. . . . . . . . . . 1 x 226.3 ltr. 1 x 59.8 gpm/min.
Sub-pump for control circuit . . . . . . . . . . . . . . . . Gear pump
Hydraulic motors:
Travel. . . . . . . . . . . . . . . . . . . . . . . 2 x Axial piston motor with parking brake
Swing. . . . . . . . . . . . . . . . . . . . . . . 1 x Axial piston motor with swing holding brake
Relief valve setting:
Implement circuits. . . . . . . . . . . . . 325 kg/cm2 4,620
PSI Travel circuit . . . . . . . . . . . . . . . . . 355 kg/cm2 5,050
PSI Swing circuit . . . . . . . . . . . . . . . . . 275 kg/cm2 3,910
PSI Pilot circuit . . . . . . . . . . . . . . . . . . . 30 kg/cm2 430
PSI Service valve . . . . . . . . . . . . . . . . 280 kg/cm2 3,983
PSI Hydraulic cylinders:
Number of cylinders – bore x stroke
Boom . . . . . . . . . .2 – 105 mm x 990 mm 4.1″ x 39.0″
Arm . . . . . . . . . . . .1 – 115 mm x 1175 mm 4.5″ x 46.3″
Bucket . . . . . . . . .1 – 95 mm x 885 mm 3.7″ x 34.8″
Service valves maximum flow:
First valve. . . . . . . . . . . . . . . . . . . 226 ltr./min 59.7 gpm
Second valve. . . . . . . . . . . . . . . . 113 ltr./min. 29.9 gpm
Third valve. . . . . . . . . . . . . . . . . . 113 ltr./min. 29.9 gpm
Swing System
Driven by. . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic motor
Swing reduction. . . . . . . . . . . . . Planetary double reduction
Swing circle lubrication. . . . . . . . . . . . . . . . . Grease-bathed
Swing lock . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil disc brake
Swing speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 RPM
Swing torque . . . . . . . . . . . . . . . . . . 2991 kg.m 21,627 ft lb
Undercarriage
Center frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-frame
Track frame . . . . . . . . . . . . . . . . . . . . . . . . Box-section type
Seal of track . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealed track
Track adjuster . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic type
No. of shoes
PC120-6:. . . . . . . . . . 42 ea side
PC120LC-6. . . . . . . . 46 ea side
No. of carrier rollers
PC120-6:. . . . . . . . . . . 1 ea side
PC120LC-6. . . . . . . . . 2 ea side
No. of track rollers
PC120-6 . . . . . . . . . . . 7 ea side
PC120LC-6. . . . . . . . . 8 ea side
