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Caterpillar 14H Motor Grader Specs & Dimensions :: RitchieSpecs

Cat grader 14h manual: A guide to the industry standard motor grader

A motor grader is a heavy equipment machine that is used for creating smooth and flat surfaces by grading, leveling, shaping, or cutting material such as soil, gravel, or snow. Motor graders are commonly used for road construction, maintenance, landscaping, mining, agriculture, and other applications that require precise surface control.

Cat Grader 14h Manual


One of the most popular and reliable motor graders in the market is the Cat grader 14h, manufactured by Caterpillar Inc., a global leader in construction and mining equipment. The Cat grader 14h is a versatile, powerful, efficient, and user-friendly machine that delivers high performance and durability in any grading project.

The purpose of this article is to provide you with a comprehensive guide to the Cat grader 14h manual, which covers all the essential information you need to know about this motor grader. Whether you are a potential buyer, a current owner, or a user of this machine, this article will help you understand its features, benefits, specifications, operation, maintenance, and more.


The engine is the heart of any motor grader, as it provides the power and torque needed to move the machine and operate the blade. The Cat grader 14h is equipped with a Cat C13 ATAAC engine, which is a six-cylinder, direct injection, turbocharged and air-to-air aftercooled engine that delivers exceptional performance, reliability, low maintenance, excellent fuel economy, and low emissions.

The engine model and specifications are as follows:

Engine Model

Base Power (1st Gear) - Net



Speed at Rated Power

Torque Rise

Maximum Torque - VHP Plus


Cat C13

238 HP (178 kW)

5.1 in (130 mm)

6.2 in (157 mm)

1,850 rpm


1137 lb/ft (1542 Nm)

Tier 4 Final/Stage V, Tier 3/Stage IIIA equivalent or Tier 2/Stage II equivalent

One of the unique features of the Cat grader 14h engine is the variable horsepower arrangement, which matches the torque curves to the gear, to maximize response, power, and efficiency. The variable horsepower option uses specific torque curves for each gear range for optimum performance. The base power is 238 HP (178 kW) for gears 1-3, and the maximum power is 264 HP (197 kW) for gears 4-8.

The engine also features a low fuel consumption rate, which reduces operating costs and environmental impact. The Eco Mode option saves fuel while maintaining productivity by automatically adjusting the engine speed based on the load. The engine also meets the current and anticipated regulations for emissions, exhaust, and noise levels, thanks to its advanced design and technology.

Power train

The power train is the system that transfers the power from the engine to the wheels and the blade. The Cat grader 14h has a power shift transmission that takes full advantage of the powerful engine. The transmission has eight forward and six reverse gears, with a maximum forward speed of 45.5 km/h (28.3 mph) and a maximum reverse speed of 36.6 km/h (22.7 mph).

The transmission also features an electronic clutch pressure control system, which modulates clutch engagement for smooth shifts and long clutch life. The transmission control lever allows the operator to select the direction, speed, and gear range with ease. The transmission hold feature enables the operator to maintain a selected gear for consistent grading.

The Cat grader 14h also has a dual air system and multi-disc oil brakes that assure reliable braking control. The dual air system consists of two independent air compressors and reservoirs that provide redundancy and safety. The multi-disc oil brakes are hydraulically actuated and fully enclosed to protect them from contamination and wear. The brakes are located at each tandem wheel to provide balanced braking.

Another feature of the Cat grader 14h power train is the differential lock and all-wheel drive options that enhance traction and maneuverability in difficult terrain or conditions. The differential lock is a hydraulically actuated clutch that locks both rear wheels together for increased traction. The all-wheel drive option provides additional power to the front wheels for improved steering and grading performance.


The hydraulics is the system that controls the movement and position of the blade and other attachments. The Cat grader 14h has a load-sensing hydraulic system that lowers power consumption and system heat by delivering only the required amount of hydraulic flow and pressure to each function.

The hydraulic system also features advanced proportional priority pressure-compensating (PPPC) control valves that provide low lever effort, balanced flow, and consistent cylinder speeds for outstanding blade control. The PPPC valves have nine functions: blade lift, blade angle, blade side shift, circle drive, circle side shift, articulation, wheel lean, ripper lift, and ripper tip.

One of the benefits of the PPPC valves is the blade float feature, which allows the blade to move freely under its own weight. This feature improves grading quality by following the contours of the ground and reducing the number of passes required. The blade float is incorporated into the blade lift valves and can be activated by moving the blade lift lever to the full raise position.


The structures are the components that support and connect the engine, power train, hydraulics, operator's station, and other parts of the motor grader. The Cat grader 14h has a robust and durable frame, drawbar, circle, and moldboard that are designed and built to withstand the tough loads and stresses of grading operations.

The frame consists of two main sections: the front frame and the rear frame. The front frame supports the engine, operator's station, front axle, steering cylinders, and other components. The rear frame supports the transmission, rear axles, tandems, fuel tank, ripper or scarifier, and other components. The front and rear frames are connected by a heavy-duty articulation hitch that allows 20 of articulation for steering.

The drawbar is a forged steel component that connects the circle to the front frame. It transfers blade forces from the circle to the main frame as a torsional load. It also supports auxiliary equipment such as rippers or scarifiers.

The circle is a fabricated steel component that attaches to the drawbar with six shoes that allow it to rotate 360. It supports Operator's station

The operator's station is the place where the operator controls and monitors the motor grader. The Cat grader 14h has an ergonomic design and layout of the controls, gauges, and monitors that provide world-class operator control and comfort. The operator's station also offers improved visibility and comfort of the operator's seat and cab.

The controls are arranged in a logical and intuitive manner, allowing the operator to operate the motor grader with ease and precision. The low effort blade controls are located on the right side of the seat, and consist of two joysticks that control all blade functions. The electronic throttle control is located on the left joystick, and allows the operator to adjust the engine speed with a touch of a button. The transmission control lever is located on the left side of the steering wheel, and allows the operator to select the direction, speed, and gear range.

The gauges and monitors are located on the front console, and provide the operator with vital information about the motor grader's performance and condition. The electronic monitoring system III (EMS III) monitors all critical machine functions and alerts the operator of any problems or faults. The EMS III also displays fuel level, engine speed, gear selection, brake pressure, hydraulic oil temperature, articulation angle, and other parameters.

The visibility and comfort of the operator's seat and cab are enhanced by several features. The large windows and tapered engine hood ensure a clear view in all directions. The contour series suspension seat is adjustable to suit the operator's preference and posture. The seat also has a retractable seat belt for safety. The cab is spacious and well-ventilated, with an air conditioning and heating system that maintains a comfortable temperature. The cab also has a radio-ready entertainment system that includes speakers, antenna, and wiring for a radio or CD player.

The integrated technologies are another feature of the Cat grader 14h operator's station that improve grading accuracy and efficiency. Some of these technologies are:

  • Stable Blade: This feature improves grading precision by decreasing engine speed at 15 percent intervals when machine bounce is detected then increases engine rpm systematically when grader stabilizes.

  • Cat Grade with Cross Slope: This feature helps maintain desired cross slope by automatically controlling one side of the blade.

  • Cat Grade: This feature uses positioning and guidance technologies, machine sensors, and automatic blade control to help get to grade faster, easier, and more efficiently.

  • Auto Articulation: This feature allows you to articulate automatically while steering in tight spaces or around curves, obstacles, and turnarounds.

  • Cat Production Measurement System: This feature allows you to manage your fleet of machines while reducing fuel burn. It also measures your jobsites efficiency and productivity from anywhere on the website.


Serviceability is the ease and convenience of maintaining and servicing the motor grader. The Cat grader 14h has a high level of serviceability that reduces downtime and operating costs. Some of the features that enhance serviceability are:

  • Caterpillar re-engineered inspection and service points, grouping them into convenient left-hand side, ground level service center. This includes filters, sight gauges, sampling ports, grease fittings, batteries, air reservoirs, fuel tank drain cock, engine oil drain valve, hydraulic oil drain valve, transmission oil drain valve.

  • Ground level fueling for easy access and safety.

  • Extended engine oil change interval of 500 hours with Cat SOS analysis or 250 hours without analysis.

  • Extended hydraulic oil change interval of 2000 hours with Cat SOS analysis or 1000 hours without analysis.

  • Modular design that permits easy removal of power train components for servicing.

  • Customer support and warranty services offered by Cat dealers that include parts availability, preventive maintenance programs, equipment management solutions, technical training, financing options, etc.


The Cat grader 14h manual is a comprehensive guide that covers all the essential information you need to know about this motor grader. It provides you with an overview of its features, benefits, specifications, operation, maintenance, and more.

The Cat grader 14h is a versatile, powerful, efficient, and user-friendly machine that delivers high performance and durability in any grading project. It has a larger engine, improved fuel economy and machine balance, enhanced transmission performance and a range of technology that make it the industry standard motor grader.

If you are interested in buying or using this motor grader, you can contact your nearest Cat dealer for more information and assistance. You can also visit the Cat website for more details and resources.


Here are some common questions and answers about the Cat grader 14h manual:

  • Q: How can I get a copy of the Cat grader 14h manual?

  • A: You can download a PDF version of the manual from the Cat website or request a printed copy from your Cat dealer.

  • Q: How can I learn how to operate the Cat grader 14h?

  • A: You can refer to the operation and maintenance section of the manual for instructions and tips on how to operate the motor grader safely and efficiently. You can also enroll in a training course offered by your Cat dealer or Caterpillar.

  • Q: How can I troubleshoot the Cat grader 14h?

  • A: You can use the electronic monitoring system III (EMS III) to diagnose any problems or faults with the motor grader. The EMS III will display codes and messages on the monitor that indicate the nature and location of the problem. You can also refer to the troubleshooting section of the manual for more guidance.

  • Q: How can I contact Caterpillar or my Cat dealer for support?

  • A: You can find the contact information of Caterpillar and your Cat dealer on the inside front cover of the manual. You can also visit the Cat website for more options.

  • Q: How can I provide feedback or suggestions on the Cat grader 14h manual?

  • A: You can fill out and mail the reader's comment form that is located at the back of the manual. You can also send an email to with your feedback or suggestions.


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