Cat K Series™ 2 Motor Graders are the machines you can count on when you need to get work done. Cat motor graders help you make the most of your investment by delivering maximum productivity and durability. The Cat C7 engine, direct-drive power shift transmission and load sensing hydraulics work together to ensure the power and precision you need to work in demanding conditions. And Cat motor graders are backed by the world-class Cat dealer network to keep you up and running.
Engine
Base Power (1st gear) – Net | 108.0 kW |
Engine Model | Cat® C7 ACERT™ |
Bore | 110.0 mm |
Derating altitude | 2286.0 m |
Displacement | 7.2 L |
Fan Speed Maximum | 1,575 rpm |
Gross Power – ISO 14396 | 116.0 kW |
High Ambient Capability | 50.0 ° C |
Maximum Torque Net | 774.0 N·m |
Number of cylinders | 6 |
Power – All Gears: 1-8 Gross | 118.0 kW |
Power – All Gears: 1-8 Gross (metric) | 118.0 kW |
Power – All Gears: 1-8 Net | 108.0 kW |
Power – All Gears: 1-8 Net (metric) | 108.0 kW |
Speed @ rated power | 2,000 rpm |
Stroke | 127.0 mm |
Torque Rise | 50% |
Power Train
Brakes – Parking | Air actuated, multiple oil-disc |
Brakes – Secondary | Dual Circuit |
Brakes – Service | Air actuated, multiple oil-disc |
Brakes – Service, surface area | 18606.0 cm2 |
Forward/Reverse Gears | 8 forward/6 reverse |
Transmission | Direct drive, Powershift |
Operating Specifications
Articulation Angle – left/right | 20 Degrees |
Forward – 1st | 4.1 km/h |
Forward – 2nd | 5.5 km/h |
Forward – 3rd | 8.0 km/h |
Forward – 4th | 11.1 km/h |
Forward – 5th | 17.5 km/h |
Forward – 6th | 23.7 km/h |
Forward – 7th | 32.7 km/h |
Forward – 8th | 47.5 km/h |
Reverse – 1st | 3.2 km/h |
Reverse – 2nd | 6.0 km/h |
Reverse – 3rd | 8.7 km/h |
Reverse – 4th | 13.8 km/h |
Reverse – 5th | 25.8 km/h |
Reverse – 6th | 37.5 km/h |
Steering Range – left/right | 47.5 Degrees |
Top Speed – forward | 47.5 km/h |
Top Speed – reverse | 37.5 km/h |
Turning Radius, outside front tires | 7.3 m |
Hydraulic System
Circuit Type | Load Sensing, Closed Center, PPPC |
Maximum System Pressure | 25500.0 kPa |
Optional High Output Pump | 210.5 L/min |
Pump Output Standard Pump | 159.1 L/min |
Pump Type | Variable Piston |
Reservoir Tank Capacity | 24.5 L |
Standby Pressure | 3600.0 kPa |
Moldboard
Blade Width | 3.7 m |
Arc Radius | 413.0 mm |
Blade Pull – base GVW | 8112.0 kg |
Blade Pull – maximum GVW | 10623.0 kg |
Cutting Edge – thickness | 16.0 mm |
Cutting Edge – width | 152.0 mm |
Down Pressure – base GVW | 5594.0 kg |
Down Pressure – maximum GVW | 9317.0 kg |
End Bit – thickness | 16.0 mm |
End Bit – width | 152.0 mm |
Moldboard – height | 610.0 mm |
Moldboard – thickness | 22.0 mm |
Throat Clearance | 58.0 mm |
Blade Range
Blade Tip Range – backward | 5 Degrees |
Blade Tip Range – forward | 40 Degrees |
Circle Centershift – left | 658.0 mm |
Circle Centershift – right | 656.0 mm |
Maximum Blade Position Angle | 90 Degrees |
Maximum depth of cut | 775.0 mm |
Maximum lift above ground | 410.0 mm |
Maximum shoulder reach outside of tires – left | 1764.0 mm |
Maximum shoulder reach outside of tires – right | 1928.0 mm |
Moldboard Sideshift – left | 512.0 mm |
Moldboard Sideshift – right | 663.0 mm |
Ripper
Machine length increase, beam raised | 1058.0 mm |
Penetration force | 4083.0 kg |
Pryout force | 2108.0 kg |
Ripper shank holder spacing | 533.0 mm |
Ripper shank holders, quantity | 5 |
Ripping depth – maximum | 262.0 mm |
Scarifier
Mid, V-Type – Scarifier shank holder spacing | 116.0 mm |
Mid, V-Type – Scarifier shank holders quantity | 11 |
Mid, V-Type – Scarifying depth, maximum | 229.0 mm |
Mid, V-Type – Working width | 1184.0 mm |
Frame
Circle – blade beam thickness | 30.0 mm |
Circle – diameter | 1530.0 mm |
Drawbar – height | 127.0 mm |
Drawbar – width | 76.2 mm |
Front axle – height to center | 615.0 mm |
Front axle – total oscillation per side | 32 Degrees |
Front axle – wheel lean, left/right | 18 Degrees |
Front-linear weights – maximum | 172.0 kg/m |
Front-linear weights – minimum | 134.0 kg/m |
Front-section modulus – maximum | 3681.0 cm3 |
Front-section modulus – minimum | 1619.0 cm3 |
Front-side plates – thickness | 10.0 mm |
Front-side plates – width | 236.0 mm |
Front-top/bottom plate – thickness | 22.0 mm |
Front-top/bottom plate – width | 280.0 mm |
Tandems
Drive chain pitch | 44.5 mm |
Height | 438.0 mm |
Sidewall thickness – inner | 1.0 mm |
Sidewall thickness – outer | 16.0 mm |
Tandem oscillation – front down | 25 Degrees |
Tandem oscillation – front up | 15 Degrees |
Wheel axle spacing | 1510.0 mm |
Width | 172.0 mm |
Service Refill
Circle drive housing | 7.0 L |
Cooling system | 40.0 L |
Engine Oil | 18.0 L |
Front wheel spindle bearing housing | 0.5 L |
Fuel Capacity | 305.0 L |
Tandem housing (each) | 49.0 L |
Transmission/Differential/Final Drives | 48.0 L |
Weights
Gross Vehicle Weight – Typically Equipped | 13843.0 kg |
Gross Vehicle Weight – Maximum | 17000.0 kg |
Gross Vehicle Weight, Base – front axle | 3120.0 kg |
Gross Vehicle Weight, Base – rear axle | 9013.0 kg |
Gross Vehicle Weight, Base – total | 12133.0 kg |
Gross Vehicle Weight, Maximum – front axle | 5197.0 kg |
Gross Vehicle Weight, Maximum – rear axle | 11803.0 kg |
Gross Vehicle Weight, Maximum – total | 17000.0 kg |
Gross Vehicle Weight, Typically Equipped – front axle | 3970.0 kg |
Gross Vehicle Weight, Typically Equipped – rear axle | 9873.0 kg |
Gross Vehicle Weight, Typically Equipped – total | 13843.0 kg |
Standards
Brakes | ISO 3450:1996 |
ROPS/FOPS | ISO 3471:1994/ISO 3449:2005 |
Sound | ISO 6394:2008, ISO 6396:2008 |
Steering | ISO 5010:2007 |
Dimensions (Approximate)
Ground Clearance – Center Front Axle | 602.0 mm |
Ground Clearance, Trans. Case | 341.0 mm |
Height to Exhaust Stack | 2865.0 mm |
Height – Non-ROPS Cab | 3321.0 mm |
Height – ROPS Cab | 3326.0 mm |
Height – ROPS Canopy | 3326.0 mm |
Height – Top of Cylinders | 2885.0 mm |
Length – Between Tandem Axles | 1510.0 mm |
Length – Counterweight to Ripper | 9769.0 mm |
Length – Front Axle to Mid Tandem | 5870.0 mm |
Length – Front Axle to Moldboard | 2598.0 mm |
Length – Front Tire to Rear of Machine | 8265.0 mm |
Width – Outside Front Tires | 2449.0 mm |
Width – Outside Rear Tires | 2439.0 mm |
Width – Tire Center Lines | 2056.0 mm |
Power Train
Reliable performance
Smooth Shifting Transmission
Oil Disc Brakes – Completely Sealed, Adjustment Free
Oil-bathed, air actuated and spring-released, located at each tandem wheel to eliminate power train braking loads and to reduce service time. The large brake surface area provides dependable braking capability and extended life before rebuild.
Front Axle with Cat Live Spindle Design
Cat sealed spindle keeps the bearings free from contaminants and lubricated in a lightweight oil to reduce owning and operating costs. A larger tapered roller bearing is outboard where the load is greater, extending bearing life.
Cat C7 Engine
Maximum power and efficiency
Power Management
The Cat C7 engine with ACERT Technology uses electronic control, precision fuel delivery and refined air management to provide outstanding performance and lower emissions. The Electronic Throttle Control provides easier, more precise and consistent throttle operation. Engine Over-Speed Protection prevents downshifting until an acceptable safe travel speed has been established.
Hydraulics
Balanced hydraulics deliver consistent, precise and responsive control
Balanced Flow, Independent Oil Supply
Hydraulic flow is proportioned to ensure all implements operate simultaneously. Independent oil supply prevents cross-contamination and provides proper oil cooling, which means less heat build-up and extended component life.
Implement Control Valves
Provide outstanding operator “feel” and predictable system response for unmatched implement control. To help maintain exact blade settings, lock valves are built into all control valves. Line relief valves are also incorporated into selected control valves to protect the cylinders from over pressurization.
Load-Sensing Hydraulics
A load sensing variable displacement pump and advanced hydraulic valves provide superior implement control and better machine performance. Continuously matching hydraulic flow and pressure to power demands creates less heat and reduces power consumption.
The hydraulic system valves are specifically designed for each hydraulic function on the motor grader. They compensate for differences in flow requirements, based on cylinder size and the difference in surface volume between the rod end (blue) and barrel end (red) of the cylinder. The result is predictable, consistent hydraulic speeds whether extending or retracting the cylinder.
Designed for strength and durability
Front frame is a continuous top and bottom plate construction. Flanged box section design removes welds from high stress areas, improving reliability and durability. The rear frame structure has two box section channels with fully welded differential case for a solid working platform. An integrated bumper ties the rear frame together into a cohesive unit to handle high stress loads.
The K Series 2 drawbar is designed for high strength and optimum durability for any application. The circle stands up to high stress loads. Raised wear surfaces prevent circle teeth wear against the drawbar. The 64 uniformly spaced circle teeth are flame cut and heat induction hardened to resist wear, and the circle is secured to the drawbar by four support shoes for maximum support. The moldboard provides optimal curvature and large throat clearance that helps move all soil types quickly and efficiently. These features deliver excellent load distribution and minimal material buildup in the circle area while allowing large blade loads to roll freely.
This optional feature uses accumulators to help absorb impact loads to the moldboard by allowing vertical blade travel. Blade lift accumulators reduce unnecessary wear and help to avoid unintended machine movement for increased operator safety.
Allows expansion of machine versatility, utilization, and performance
Standard moldboard length is 3.7 m (12 ft). Moldboard extensions are available to increase moldboard surface area and extend reach capability.
A wide variety of cutting edges and end bits are available, all designed for maximum service life and productivity.
The optional ripper/scarifier is made to penetrate tough material fast and rip thoroughly for easier material movement with the moldboard. The ripper includes three shanks with the ability to add two more if needed.
A front mounted push plate/counterweight or front blade can be ordered.
Positioned between the front axle and the circle to break up tough material that the blade can then move, all in a single pass. The V-type scarifier can accommodate up to 11 teeth.
Includes snow wings, angle blades, and V-plows. Multiple mounting options are available, increasing machine versatility. (Availability may differ by region.)
Caterpillar sets the standard for comfort, convenience and visibility
K Series 2 cabs are designed to keep operators comfortable, relaxed and productive. Features like low effort pedals and controls, adjustable implement controls and adjustable steering wheel angle help make work easier on the operator. A clear view to the moldboard heel and tandem tires enhance productivity and safe operation. Rocker switches and transmission shifter are backlit for night time operation.
The instrument panel, with easy-to read, high-visibility gauges and warning lamps, places vital machine information and diagnostic capability in easy view of the operator. The dash includes an engine coolant temperature gauge, an articulation gauge, voltage gauge and fuel level gauge. Service brake air pressure gauges are also standard. Speedometer and tachometer are optional. All major systems are monitored by warning lights.
Additional cab features include storage area, an adjustable control console and coat hook. Optional offerings include power port, air conditioner/heater, suspension seat, defroster fan, sun shade, backup lights, Product Link™ ready, and AccuGrade™ System ready. NOTE: Some attachments are not available in all regions.
Solutions to make work easier and more efficient
AccuGrade uses positioning and guidance technologies, machine sensors, and automatic blade control to help operators get to grade faster, easier and more efficiently. Digital design plans, real-time cut/fill data, and in-cab guidance give operators detailed information to work more confidently and achieve greater accuracy, in fewer passes, using less material. Operators can stay on grade and improve productivity and accuracy by nearly 50 percent over conventional methods. Grade stakes and checkers are minimized, making the work site safe, efficient, and cost effective. AccuGrade technologies include Cross Slope, Sonic, Laser, GPS, and/or Universal Total Station (UTS).
K Series 2 machines can be equipped with the AccuGrade ARO. It can be ordered as a factory or dealer installed option. The attachment option includes built-in mounting points and internal wiring, making installation of the AccuGrade grade control system faster and easier.
Product Link helps take the guesswork out of equipment management with remote monitoring capabilities for your machine or your entire fleet. Track asset location, hours, fuel usage, diagnostic codes, idle time and more through the secure VisionLink® user interface. Knowing where your equipment is, what it’s doing and how it’s performing enables you or your Cat dealer to manage your fleet in real-time so you can maximize efficiency, improve productivity, and lower operating costs. *Product Link licensing not available in all areas. Please consult your Cat dealer for availability.
Designed with safety in mind
The operator sound pressure level for the cab offered by Caterpillar, when properly installed, maintained and tested with the doors closed, meets or exceeds requirements set forth in ISO 6394:2008. The quiet environment helps improve operator working conditions.
Brakes located at each tandem wheel offer the largest total brake surface area in the industry, delivering dependable stopping power and longer brake life. Standard circle drive slip clutch protects the drawbar, circle and moldboard from shock loads when the blade encounters an immovable object. Blade lift accumulators help absorb impact loads to the moldboard by allowing vertical blade travel.
Disconnect switch provides ground-level lockout of the electrical system to prevent inadvertent machine starts. Engine shutoff allows anyone nearby to shut the machine down in case of an emergency.
Laminated glass on the front windows and lockable doors to reduce theft and vandalism are available with the optional cab. Brake lights, conveniently located grab rails, back up lights and alarm also help ensure a safe work environment.
When uptime counts
From helping you choose the right machine to financing and ongoing support, your Cat dealer provides the best in sales and service. Manage your costs with preventive maintenance programs like S•O•SSM fluids analysis, coolant sampling and guaranteed maintenance contracts. Stay productive with best-in-class parts availability. Your Cat dealer can help you boost your profits with operator training. And when it’s time for component replacement, your Cat dealer can help you save even more. Genuine Cat Remanufactured parts carry the same warranty and reliability as new products at savings of 40 to 70 percent for power train and hydraulic components
Thinking generations ahead
Convenient service points make routine maintenance quick and easy
Easy access to service areas speeds up maintenance and ensures that routine service is performed on time. Ecology drains shorten service times and help prevent spills. Radiator cleanout access gives the operator the ability to clear away debris and other materials that build up around the radiator.
The dash cluster panel provides enhanced machine information and diagnostic capability, which allows faster servicing of the transmission and engine.
O-Ring face seals create a reliable connection and are used in all hydraulic circuits to minimize the possibility of oil leaks.
Modular harness design provides simple disconnects for major machine repairs or rebuilds which reduces machine downtime.
Cat Electronic Technician is a two-way communication tool that gives service technicians easy access to stored diagnostic data, reducing machine downtime and lowering operating costs.
120K2 Standard Equipment
ELECTRICAL
OPERATOR ENVIRONMENT
POWER TRAIN
OTHER STANDARD EQUIPMENT
ANTIFREEZE
120K2 Optional Equipment
GUARDS
OPERATOR ENVIRONMENT
CAB/CANOPY
POWER TRAIN
OTHER ATTACHMENTS
HYDRAULICS
BLADES, MOLDBOARDS
Selection of right Construction Equipment for your Project