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120M Motor Grader

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Performance

  • Programmable Autoshift option simplifies operation by allowing transmission to be programmed to shift at optimal points to match application.
  • Power Shift Countershaft Transmission matches to engine, maximizing power to the ground.
  • Electronic Throttle Control helps improve productivity by providing best match of horsepower and torque for application demands.

Efficiency

  • Aggressive blade angle, optimized moldboard curvature and large throat clearance allow material to roll more freely along blade, increasing efficiency.
  • Hydraulic demand fan automatically adjusts speed according to cooling requirements resulting in more power to the ground and improved fuel efficiency.
  • Engine idle shutdown is available to shut down engine after a set period of time saving fuel and helping reduce emissions.

Ease of Operation

  • Selectable blade lift modes
     - Fine, Normal, or Coarse
     - allow you to choose the blade lift modulation mode that best fits your application or operating style.
  • Joystick controls with electronically adjustable control pods reduce hand and arm movement by 78%, helping reduce operator fatigue.
  • Left joystick controls steering, articulation, return-to-center, wheel lean, gear selection, left moldboard lift cylinder and float.
  • Right joystick controls drawbar, circle and moldboard functions as well as electronic throttle control and manual differential lock/unlock.
  • Articulation Return-to-Center automatically returns machine to a straight frame position from any angle with the touch of a button.

Safety

  • Angled cab doors, tapered engine enclosure and sloped rear window increase visibility.
  • Optional rear vision camera enhances sight to rear of machine.

Serviceability

  • Convenient access from the top of the circle to the patented top-adjust wear strips and inserts make them easy to add or replace.
  • Shimless Moldboard Retention System uses vertical and horizontal adjusting screws to keep moldboard wear strips aligned for reduced blade chatter and precise blade control.

Comfort

  • Control pods can be adjusted electronically, making it easy to set to ideal operating position.
  • Standard Cat Comfort Series suspension seat is fully adjustable.
  • High capacity Heating, Ventilation, and Air Conditioning (HVAC) system dehumidifies and pressurizes cab, sealing out dust, and helps keep windows clear.

Technology

  • Shuttle Shift allows smooth, fast direction shifts without requiring you to manipulate the throttle or inching pedal.
  • Cat Product Link™ aids your equipment management with remote monitoring capabilities.
  • Optional Stable Blade improves grading precision by decreasing engine speed at 15 percent intervals when machine bounce is detected then increases engine rpm systematically when grader stabilizes.
  • Optional Auto Articulation allows you to articulate automatically while steering in tight spaces or around curves, obstacles, and turnarounds.
  • Optional Cat GRADE with Cross Slope helps maintain desired cross slope by automatically controlling one side of the blade.
  • Optional Cat AccuGrade™ uses positioning and guidance technologies, machine sensors, and automatic blade control to help get to grade faster, easier and more efficiently.
  • Optional Cat Advanced Control Joysticks allow you to control automated grading solutions efficiently and safely without removing your hands from the joysticks.
Engine
Base Power (1st gear) - Net 103 kW (138 hp)
Engine Model Cat C6.6 ACERT™
Bore 105 mm (4.13 in)
Stroke 127 mm (5.0 in)
Speed @ Rated Power 2,000 rpm
Base Power (1st gear) u2013 Net (Metric) 103 kW (140 hp)
Maximum Torque (VHP Plus-Net) 906 N·m (668 lbf-ft)
Torque Rise (VHP Plus) 40%
VHP Plus Range u2013 Net 103-136 kW (138-182 hp)
VHP Plus Range u2013 Net (Metric) 103-136 kW (140-185 hp)
Displacement 6.6 L (403 in3)
Number of Cylinders 6
Derating Altitude 3505 m (11500 ft)
Standard Fan Speed u2013 Maximum 1,150 rpm
Standard Fan Speed u2013 Minimum 600 rpm
Emissions U.S. EPA Tier 3/EU Stage IIIA equivalent
High Ambient Fan Speed u2013 Maximum 1,650 rpm
High Ambient Fan Speed u2013 Minimum 600 rpm
High Ambient Capability 50 u00b0 C (122 u00b0 F)
Weights
Operating Weight - Typically Equipped 18400 kg (40565 lb)
Gross Vehicle Weight u2013 Base: Total 16231 kg (35783 lb)
Gross Vehicle Weight u2013 Base: Front Axle 4220 kg (9303 lb)
Gross Vehicle Weight u2013 Base: Rear Axle 12011 kg (26479 lb)
Gross Vehicle Weight u2013 Maximum: Total 22045 kg (48601 lb)
Gross Vehicle Weight u2013 Maximum: Front Axle 6839 kg (15077 lb)
Gross Vehicle Weight u2013 Maximum: Rear Axle 15206 kg (33523 lb)
Gross Vehicle Weight u2013 Typically Equipped: Total 18400 kg (40565 lb)
Gross Vehicle Weight u2013 Typically Equipped: Front Axle 5090 kg (11221 lb)
Gross Vehicle Weight u2013 Typically Equipped: Rear Axle 13310 kg (29343 lb)
Moldboard
Blade Width 3.7 m (12 ft)
Moldboard u2013 Height 610 mm (24.0 in)
Arc Radius 413 mm (16.3 in)
Throat Clearance 134 mm (5.2 in)
Moldboard u2013 Width 3.7 m (12 ft)
Frame
Drawbar u2013 Width 76.2 mm (3.0 in)
Circle u2013 Diameter 1530 mm (60.2 in)
Drawbar u2013 Height 152 mm (6.0 in)
Front Frame Structure u2013 Height 280 mm (11.0 in)
Front Frame Structure u2013 Width 255 mm (10.0 in)
Front Axle u2013 Wheel Lean, Left/Right 18u00b0
Front Axle u2013 Total Oscillation per Side 32u00b0
Blade Range
Circle Centershift u2013 Right 656 mm (25.8 in)
Circle Centershift u2013 Left 656 mm (25.8 in)
Moldboard Sideshift u2013 Right 660 mm (26.0 in)
Moldboard Sideshift u2013 Left 510 mm (20.1 in)
Blade Tip Range u2013 Forward 40u00b0
Blade Tip Range u2013 Backward 5u00b0
Maximum Shoulder Reach Outside of Tires u2013 Right 1905 mm (75.0 in)
Maximum Shoulder Reach Outside of Tires u2013 Left 1742 mm (68.6 in)
Maximum Lift Above Ground 427 mm (16.8 in)
Maximum Depth of Cut 720 mm (28.3 in)
Engine
Note Maximum torque (VHP Plus) measured at 1,400 rpm.
Note Net power is tested per ISO 9249, SAE J1349, and EEC 80/1269 Standards in effect at the time of manufacture.
Note Net power advertised is the power available at rated speed of 2,000 rpm, measured at the flywheel when engine is equipped with fan running at minimum speed, air cleaner, muffler and alternator.
Note Power as declared per ISO 14396: Rated Speed = 2,000 rpm; VHP Plus = 175 kW (234 hp)
Note No engine derating required up to 3048 m (10,000 ft).

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