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Caterpillar 24H Motor Grader
Caterpillar 24H Motor GraderCaterpillar 24H Motor Grader blends productivity and durability to give you the best return on your investment. The Cat 3412E engine, power shift transmission and load-sensing hydraulics are designed to work together to deliver top productivity in all applications. |  |  | |||
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 | Overview & Specifications | |  | Features & Benefits | | | Standard Equipment | | | Optional Equipment | | | Work Tools & Attachments | ||
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 | | Power Train Matched Cat components deliver smooth, responsive performance and reliability. The 3412E engine offers superior lugging performance, fuel efficiency and reliability. The Caterpillar power shift transmission with electric automatic shifting features smooth, on-the-go shifting. |
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| | Cat 3412E Engine The Cat 3412E engine, with the hydraulically actuated, electronically controlled unit injector fuel system (HEUI), offers superior lugging performance, fuel efficiency and reliability. The 12-cylinder engine is turbocharged with a high displacement-to-horsepower ratio. This large displacement produces better lugging capability, lower internal stresses and longer component life. |
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| | Superior Lugging Performance High torque output and high torque rise makes the 3412E engine very responsive. The engine's lugging capability allows it to pull through sudden, short-term increases in loads, reducing the need to downshift. As a result, the operator can maintain consistent, desirable working speeds, which means the work gets done faster. |
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| | HEUI Fuel System The HEUI system uses hydraulically actuated, electronically controlled unit injectors to pressurize and inject fuel, providing the optimal mix of fuel and air. This high injection pressure, coupled with precise electronic metering and timing of the fuel injection, results in superior fuel efficiency, improved engine performance and reduced emissions and operating noise. |
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| | Engine Response Flexible control of fuel injection timing, pressure and duration over the entire engine speed range assures faster engine response and improved performance in any application. |
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| | Starting Performance High compression ratios ensure dependable cold starting performance and low emissions. |
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| | Electronic Engine Control Electronic speed governing, active & logged diagnostics code, cold start-up mode, low oil pressure warning/derate & high coolant temperature warning/derate are some features added to provide efficient & productive engine operation. |
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| | Engine Life The large bore-stroke design and conservative power rating help minimize internal stresses and increase component life. A wide journal crankshaft with large rod bearing surfaces significantly increases bearing life. |
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| | Ether Starting Aid Ether starting aid comes standard on the 24H to help ensure engine starting in the extreme cold. The system monitors engine coolant temperature to prevent ether from being injected into a hot engine. |
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 | | Power Shift Transmission Caterpillar designs and builds transmissions specifically for Cat motor graders. The transmission provides on-the-go, full-power shifting as well as inching capability. A single lever controls direction and gear selection. |
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| | Gear Selections Six forward speeds and three reverse speeds give the operator a wide operating range. With three gear selections, the operator can precisely match working speeds to job conditions for maximum productivity in earthmoving and mining applications. |
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| | Torque Converter The lockup clutch torque converter permits the machine to operate in direct drive for more efficient operation at higher torque converter output speeds. |
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| | Planetary Design Balanced planetary transmission with large diameter oil-clutch packs provides superior load distribution and heat dissipation, resulting in longer transmission life. |
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| | Control Valves Designed and manufactured by Caterpillar, control valves provide smooth, yet firm, engagement of direction and speed clutches. This reduces shock to power train components while permitting quick, smooth, automatic shifting. Smooth shifts reduce operator fatigue and help increase productivity. |
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| | Transmission Neutralizer The transmission neutralizer is available to disengage power to the wheels. The neutralizer is used to maintain full hydraulic flow while allowing the machine to slow travel speed (i.e. turning at the end of a haul road). |
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| | Oil-Disc Brakes Caterpillar designs and builds multi-disc brakes that are completely sealed and adjustment-free. The brakes are oil-bathed, oil-actuated and spring-released. They are located at each tandem wheel to eliminate braking loads on the power train and to speed up servicing. The large brake surface provides dependable braking capability and long life before rebuild. |
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| | Parking Brake The parking brake is spring-applied and oil released. The transmission is neutralized when the parking brake is engaged. |
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 | | Hydraulics Balanced hydraulics deliver consistent, precise and responsive control. The load-sensing hydraulic system lowers horsepower consumption and system heat. The control valves provide low lever effort, balanced flow and consistent control. |
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| | Power On Demand Normally, the variable displacement pump idles at near-zero output. When it senses a load requirement, the pump supplies flow and pressure to match the demand. The result is less hydraulic system heat and lower horsepower consumption. |
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| Control Valves Control valves are designed and built by Caterpillar specifically for motor graders. They provide outstanding operator "feel" and predictable system response for unmatched 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. | ||
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| | Secondary Steering Secondary steering provides hydraulic oil flow, via a ground-driven pump, to the steering system if the engine fails or main hydraulic pump flow is lost while the machine is operating. |
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| | Operator Effort Controls are designed to reduce operator fatigue. They feature short lever throws and low effort in both directions. Properly spaced control levers and short lever throws allow the operator to use multiple controls with one hand. |
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| | Balanced Flow When the operator uses several controls at one time, flow is proportioned to ensure all implements can operate simultaneously. |
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| | Independent Oil Supply A large independent oil supply prevents cross-contamination and provides proper oil cooling, which means less heat build-up and longer component life. |
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 | | Drawbar, Circle and Moldboard Designed for maximum productivity and durability. The rugged drawbar, circle and moldboard, replaceable wear inserts, and two circle drive slip clutches and blade lift accumulators, provide durability and minimize maintenance costs. |
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| | Rugged Construction The drawbar features an A-frame, box section design for high strength. The bottom is machined to provide accurate adjustment and precise blading. A one-piece forged circle is built to stand up to high stress loads. To resist wear, teeth are flame-hardened in the front section. For maximum support, the circle is secured to the drawbar by eight support shoes with replaceable strips. |
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| | Tall Moldboard Tall moldboard and large throat clearance help move material more quickly and efficiently. |
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| | Yoke Plate Full-length yoke plate gives strength, support and protection to the circle. |
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| | Replaceable Wear Items Replaceable wear inserts are located between the drawbar and circle and between the eight support shoes and circle. This wear system helps keep components tight for fine grading and allows easy replacement. Caterpillar also uses replaceable wear items in the following areas: draftball surface; blade lift and centershift cylinder sockets; circle and moldboard tip bracket bearings; moldboard slide rail; bolt-in segment and circle teeth. |
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| | Protection Systems To relieve high-impact loads, Caterpillar provides two protection systems as standard equipment. |
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| | Blade Lift Accumulators Blade lift accumulators absorb vertical shocks when the moldboard contacts immovable objects. This system is especially useful in rough grading and rocky areas. It provides precise control while allowing relief from vertical impact loads. |
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| | Circle Drive Slip Clutches Circle drive slip clutches protect the drawbar, circle and moldboard from horizontal shocks when an object is hit near the toe or heel of the blade. This system is most useful in applications where hidden objects are frequently encountered. |
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 | | Operator's Station Caterpillar sets the standard for comfort, convenience and visibility. Large windows ensure a clear view in all directions. A roomy interior, contour series suspension seat, low-effort controls and low sound levels create a productive work environment. |
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| | Viewing Area The exceptional viewing area helps improve operator confidence and productivity in all grader applications. The one-piece front windshield provides an unobstructed view of the work area. The large side windows offer a clear view of the moldboard heel and tandem tires. A wide rear window provides good visibility to the rear of the machine. |
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| | Quiet Cab The quiet environment keeps the operator alert and focused. |
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| | Comfort Low efforts on all pedals, hydraulic controls and the transmission shifter reduce operator strain and fatigue. |
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| | Roomy Interior Extra leg and foot room create a spacious, open cab. The cab includes built-in storage space for personal items such as a lunch box, cooler and coat. |
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| | Seat Contour series suspension seat is standard equipment and features fold-up armrests and a retractable seat belt. The seat follows the contours of your body and can be easily adjusted for optimal support and comfort. Seat controls are located in front and to the left of the operator, in plain view. |
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| | Climate Control Standard air conditioner and heater arrangements create a comfortable work environment for the operator. Both arrangements use high-capacity systems to ensure the operator stays productive, even in bitter cold or high heat and humidity. They dehumidify the air as well as pressurize the cab, which keeps the air fresh and seals out dust. The adjustable air vents evenly distribute air throughout the cab, keeping the operator comfortable and the windows clear of fog or frost. |
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| | Electronic Monitoring System The Electronic Monitoring System checks important machine systems and provides the operator with three levels of warnings. |
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| | Features Comfort and convenience are designed into every feature. |
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| Start-Stop Switch The engine start-stop switch enables the operator to start and stop the engine with a simple key turn. | ||
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| Location, Location, Location The fuel level, torque converter oil temperature and articulation angle gauges are located inside the cab, directly in front of the operator. The tachometer with digital speed readout is also in front of the operator. | ||
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| Easy Reach Controls and switches are located on the steering console, shift console and right cab post; all within easy reach. | ||
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| Nighttime Operation Rocker switches and transmission shifter are backlit for nighttime operation. | ||
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| Adjustments The operator can independently adjust controls and steering wheel angle. | ||
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| Cab Floor The cab floor is flush with the bottom of the doors, making it easy to sweep and keep clean. | ||
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| Cab Door The cab door releases from both inside and outside of the cab. | ||
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 | | Serviceability Conveniently placed service points make routine maintenance quick and easy. Daily maintenance is easily performed with ground level access to major service points such as oil levels and fills, grease fittings and sight gauges. A diagnostic connector allows quick electronic analysis. |
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| | Easy Access Easy access to service areas speeds up maintenance and ensures that routine service is performed on time. |
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| | Doors Large removable hinged doors are standard and provide easy access to the engine and radiator service points. Spin-on oil filters can be changed quickly. |
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| Lube Service includes optional auto-lube or clustered lube points. | ||
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| Fuse Panel The fuse panel is located inside the cab. Its cover clearly identifies circuits and fuse sizes. | ||
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| Oil Check Point The tandem oil check point is conveniently located between the wheels in the center of the tandem. | ||
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| Service Meter The service meter is incorporated as standard readout on Electronic Monitoring System (EMSII). | ||
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| Wiggins Fast Fill Wiggins fast fill is standard for fuel, tandem oil and engine oil. | ||
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| Oil Sampling Capability Oil sampling capability for engine, hydraulic, tandem and power train oil is standard. | ||
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| | Power Train Components Power train components feature a modular design so you can remove the engine, transmission or final drives independently for quicker servicing. |
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| Diagnostic Capability A diagnostic tool connection plug allows the starting-charging system to be checked quickly and easily. | ||
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| | XT Hose Caterpillar designs and manufactures its own heavy-duty XT hose and installs it in all high-pressure circuits. Its resistance to abrasions, coupled with its exceptional strength and flexibility, helps minimize maintenance and extend life. |
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| | O-Ring Face Seals O-Ring face seals create a reliable seal and are used in all hydraulic circuits to minimize the possibility of oil leaks. |
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| | Wiring Harnesses Separate wiring harnesses connect all electrical components. This modular harness design provides simple disconnects for major machine repairs or rebuilds. The wires are also color-coded and numbered to speed up diagnosis and repairs. Sure-Seal connectors are made of weather-resistant materials that protect against moisture, corrosion and abrasion. |
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| Environmentally Responsible Design Caterpillar machines minimize environmental impact AND help you build a better world. H-Series motor graders offer reduced noise and air pollution, running smoother, quieter and cleaner than ever before. | ||
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| Quiet Cab High-contact ratio gears in the transmission and slower engine speeds transmit less noise and vibration to the operator. | ||
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| Quiet Machine This quiet operation enables the machine to work with minimal disturbance to the surrounding environment. | ||
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| Dry Machine Lubricant fill points and filters are designed to minimize spillage. O-ring face seals, Cat's XT hose and Cat hydraulic cylinders protect against leaks. | ||
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| O-Zone Protection R134a refrigerant is used in the air conditioning unit to address environmental concerns. | ||
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| Complete Customer Support Cat dealer offers a range of services to help you operate longer with lower costs... from machine and attachment selection to replacement. | ||
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| Selection Make detailed comparisons of the machines you are considering before you buy. What are the job requirements? What production is needed? What is the true cost of lost production? Your Cat dealer can give you precise answers to these questions. | ||
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| Purchase Look past the initial price. Consider the financing options available as well as day-to-day operating costs. This is also the time to look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run. | ||
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| Operation Improving operating techniques can boost your profits. Your Cat dealer has training videotapes, literature and other ideas to help you increase productivity. | ||
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| Maintenance What is the cost of preventative maintenance? More and more equipment buyers are planning for effective maintenance before buying equipment. Choose from your dealer's wide range of maintenance services at the time you purchase your machine. Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as Scheduled Oil Sampling and Technical Analysis help you avoid unscheduled repairs. | ||
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| Product Support You will find nearly all parts at our dealer parts counter. In the rare case when we don't have a part in stock, we will get it to you fast; usually within 24 hours. Save money with Cat Remanufactured components. You receive the same warranty and reliability as new products at cost savings. | ||
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| Replacement Repair, rebuild or replace? Your Cat dealer can help you evaluate the costs involved so you can make the right choice. | ||