2M ® Motor Grader Cat ® C6.6 ACERT™ VHP Base Power (1st gear) – Net VHP Range – Net VHP Plus Range – Net 118 kW 118-129 kW 118-144 kW 158 hp 158-173 hp 158-193 hp Gross Vehicle Weight – Base Total Front Axle Rear Axle Moldboard Blade Width 14 522 kg 4008 kg 10 514 kg 32,016 lb 8,836 lb 23,180 lb 3.
12M Motor Grader The 12M delivers multiple technological breakthroughs to give you the best return on your investment. Operator Station ✔ A technologically advanced cab, featuring joystick controls, provides unmatched comfort and visibility. pg. 4 Integrated Electronic Solutions ✔ Full systems integration with advanced electronics including Cat® Messenger, AccuGrade™ blade control system and Cat ET, create a “Smart Machine” that optimizes performance and availability. pg.
Power Train Engine Hydraulics ✔ An electronically controlled power shift ✔ The Cat® C6.6 engine combines power ✔ The electro-hydraulic load-sensing transmission assures smooth shifting management with ACERT™ Technology system provides the foundation for and maximum power to the ground.
Operator Station The 12M features a revolutionary cab design that provides unmatched comfort, visibility and ease of use, making the operator more confident and productive.
Advanced Joystick Controls. Two electro-hydraulic joysticks reduce hand and wrist movement as much as 78% compared to conventional lever controls for greatly enhanced operator efficiency. The intuitive pattern is easy to learn and provides the precise implement control you expect from Caterpillar. Auxiliary Pod and Ripper Control. The optional ripper control and auxiliary control pod are ergonomically positioned to allow simple, comfortable operation for the multiple hydraulic options. Visibility.
Steering and Implement Controls The 12M sets the new standard for motor grader operational efficiency. Ease of Operation. The revolutionary joystick controls and exceptional visibility make the 12M easier to operate without sacrificing control. The intuitive joystick control pattern allows both new and experienced operators to become productive quickly. Logical grouping of hydraulic functions in the joysticks allow any operator to easily control several functions at the same time.
1 1 1 7 4 6 4 3 6 2 5 2 1 – Ripper Control Pod. Infinitely variable roller switches control the rear ripper and/or front lift group (when equipped), for easy and comfortable control. Left Joystick Functions. The left joystick primarily controls the machine direction and speed. Right Joystick Functions. The right joystick primarily controls the Drawbar, Circle and Moldboard functions.
Structures, Drawbar, Circle and Moldboard Durable structures with fast and simple DCM adjustments deliver precise material control while lowering operating costs. Front Frame Structure. The 12M front frame is a formed structural carbon steel tube. Advanced fabrication technology significantly reduces the number of weld joints, which more evenly distributes stress loads. The result is a robust machine that delivers the durability you expect from Caterpillar. Rear Frame Structure.
Moldboard. The optimal curvature and large throat clearance help move material quickly and efficiently. Heat-treated moldboard rails, hardened cutting edges and end bits, and large diameter bolts assure reliability and longer service life. The moldboard side shift cylinder is positioned on the left side to eliminate snow wing interference. Moldboard Positioning.
Power Train Integrated, electronically controlled systems, deliver smooth reliable performance with reduced operating costs. Smooth Shifting Transmission. The 12M combines several key innovations to ensure smooth, powerful shifts throughout the gear range. Electronically Controlled Shifting. The full Electronic Clutch Pressure Control (ECPC) system optimizes inching modulation and smooths shifting between all gears and directional changes.
Inching Pedal. Allows precise control of machine movements in any gear with low pedal effort and excellent modulation, critical in close-quarter work or finish grading. 2 Hydraulic Brakes. The oil bathed, multi-disc service brakes are hydraulically actuated (1), providing smooth predictable braking and lower operating costs. With brakes located at each tandem wheel, the 12M offers the largest total brake surface area in the industry (2), delivering dependable stopping power and longer brake life.
Engine The 12M combines power management with ACERT™ Technology to deliver maximum power and efficiency while reducing the environmental impact. Performance. The Cat C6.6 engine meets specific performance requirements for 12M applications. Its superior torque and lugging capability can pull through sudden, short-term increases in loads, maintaining consistent, desirable grading speeds to get the work done faster without downshifting. Hydraulic Demand Fan.
Hydraulics The 12M electro-hydraulics enable advanced machine controls with precise and predictable movements. Balanced Flow. Hydraulic flow is proportioned to ensure all implements operate simultaneously with little effect on the engine or implement speeds. If demand exceeds pump capacity, all cylinder velocities are reduced by the same ratio. The result is improved productivity in all applications. Consistent and Predictable Movement.
Integrated Electronic Solutions Full systems integration optimizes machine performance and availability. Low Battery Elevated Idle. After the 12M is at low idle for an extended period and low system voltage is detected, idle speed is raised. This ensures adequate system voltage and improves battery reliability. Automatic Engine Deration. Protects the C6.6 engine by automatically lowering engine torque output and alerting the operator if critical conditions are detected. Optional Automatic Blade Control.
Work Tools and Attachments The Work Tools and optional attachments for the 12M expand machine versatility, utilization and performance. Air Compressor. An optional air compressor is available, giving you a convenient on-board air system to blow debris off the machine and operate power tools. Fast-Fill Fuel Option. The 12M offers a Fast-Fill option allowing customers to refuel in less than two minutes for fast, accurate filling and reduced downtime. Snow Removal Work Tools.
Safety Safety is an integral part of all machine and system designs. Operator Presence System. The Operator Presence System keeps the parking brake engaged and hydraulic implements disabled until the operator is seated and the machine is ready for safe operation. Secondary Steering System. The standard secondary steering system automatically engages an electric hydraulic pump in case of a drop in steering pressure, allowing the operator to steer the machine to a stop. Speed Sensitive Steering.
Circle Drive Slip Clutch. This standard feature protects the drawbar, circle and moldboard from shock loads when the blade encounters an immovable object. It also reduces the possibility of abrupt directional changes in poor traction conditions, protecting the machine, operator and surroundings. Electrical Disconnect Switch. A battery disconnect switch, located inside the left rear enclosure, provides groundlevel lockout of the electrical system to prevent inadvertent starting of the machine.
Serviceability and Customer Support Simplified service, world-class product support and Cat® dealer-trained experts keep your fleet up and running, maximizing your equipment investment. Machine Selection. Make detailed comparisons of the machines under consideration before purchase. Cat dealers help you size the right machine for your operations and can estimate component life, preventative maintenance cost, and the true cost of production. Purchase.
Engine Engine Model Base Power (1st gear) – Net VHP range – Net VHP Plus range – Net Displacement Bore Stroke Torque Rise (VHP Plus) Max Torque (VHP Plus) Speed @ rated power Number of cylinders Derating altitude Cat® C6.6 ACERT™ VHP 118 kW 158 hp 118-129 kW 158-173 hp 118-144 kW 158-193 hp 6.6 L 403 in3 105 mm 4.13 in 125 mm 4.
Operating Specifications Top Speed – Fwd. Top Speed – Rev. Turning radius, outside front tires Steering range – left/right Articulation angle – left/right Fwd. 1st Fwd. 2nd Fwd. 3rd Fwd. 4th Fwd. 5th Fwd. 6th Fwd. 7th Fwd. 8th Rev. 1st Rev. 2nd Rev. 3rd Rev. 4th Rev. 5th Rev. 6th Tandems 45.7 km/h 36.1 km/h 7.4 m 47.5° 20° 4 km/h 5.4 km/h 7.8 km/h 10.8 km/h 16.8 km/h 22.8 km/h 31.4 km/h 45.7 km/h 3.1 km/h 5.9 km/h 8.5 km/h 13.2 km/h 24.8 km/h 36 km/h 28.4 mph 22.4 mph 24 ft 3 in 378 L 33 L 64 L 14 L 62.
Ripper Ripping depth, maximum Ripper shank holders Ripper shank holder spacing Penetration force Pryout force Machine length increase, beam raised Weights 424 mm 5 533 mm 8558 kg 8465 kg 975 mm 16.7 in 21 in 18,869 lb 18,664 lb 38.4 in 14 522 kg 4008 kg 10 514 kg 32,016 lb 8,836 lb 23,180 lb 20 271 kg 6933 kg 13 338 kg 44,690 lb 15,284 lb 29,406 lb • Base operating weight calculated on standard machine configuration with 13.00-24 12PR (G-2) tires, full fuel tank, coolant, lubricants and operator.
Dimensions All dimensions are approximate, based on standard machine configuration with 13.00-24 12PR (G-2) tires. 1 9 10 2 8 11 3 4 12 5 13 6 7 1 2 3 4 5 6 7 Height – top of cab Height – front axle center Length – between tandem axles Length – front axle to moldboard Length – front axle to mid tandem Length – front tire to rear of machine Length – counterweight to ripper 3290 mm 572 mm 1511 mm 2511 mm 5915 mm 8488 mm 9889 mm 129.5 in 22.5 in 59.5 in 98.9 in 232.8 in 334.1 in 389.
Standard Equipment Standard equipment may vary. Consult your Caterpillar dealer for details.
Optional Equipment Optional equipment may vary. Consult your Caterpillar dealer for details.
Notes 12M Motor Grader specifications 25
Notes 26 12M Motor Grader specifications
Notes 12M Motor Grader specifications 27
12M Motor Grader For more complete information on Cat products, dealer services, and industry solutions, visit us on the web at www.cat.com © 2009 Caterpillar All Rights Reserved Printed in U.S.A. Materials and specifications are subject to change without notice. Featured machines in photos may include additional equipment. See your Caterpillar dealer for available options. AEHQ5730-02 (6-09) Replaces AEHQ5730-01 CAT, CATERPILLAR, SAFETY.CAT.
