824H Wheel Dozer

The 824H Wheel Dozer was conceived and designed to surpass any competitor with exciting innovations that exceed customer expectations for performance, reliability and operator comfort.

Power Train



Delivers top performance and durability in tough applications.

Cat C15 Engine with ACERT Technology



The Cat C15 engine is an increased displacement version of the proven Cat 3406 engine. The C15 is U.S. EPA Tier 3EU Stage III compliant and features a 3.5 percent horsepower increase over the previous 3406. The four stroke engine delivers fuel economy, durability and reliability in the most demanding conditions. High torque rise delivers performance you can feel with greater rimpull, lift force and faster cycle times. Resilient engine mounts dampen vibration for lower sound levels.

Engine Lubrication



Engine lubricating oil is filtered, cooled and supplied by a geartype pump.

Mechanical Electronic Unit Injector MEUI



MEUI is a highpressure, direct injection fuel system that is virtually adjustmentfree. It electronically monitors operator and sensor inputs to optimize engine performance.

AirtoAir Aftercooler ATAAC System



The ATAAC system provides a separate cooling for the intake manifold air. It routes hot, compressed air from the turbo and cools it with a single pass, airtoair aluminum heat exchanger. The cooled, compressed air greatly reduces the emissions produced, meeting U.S. EPA Tier 3EU Stage III requirements. ulli Airflow matched turbocharger with power rating helps reduce emissions.lili 19 percent more bearing area allows the engine to operate at the maximum cylinder pressure.lili Higher cylinder pressure capability helps reduce fuel consumption and improves high altitude operation and provides reduced emissions. liulCylinder heat exhaust port sleeves reduce heat rejection which results in less heat transfer into the water jacket system and provides high torque rise.

Next Generation Modular Radiator NGMR



The parallel flow system with six cores standard seven on the high ambient machine improves cooling capabilities. Serviceability is also enhanced as there is no top tank to remove. The NGMR uses copper brazed brass tubes and copper fins.

ADEM IV Advanced Diesel Engine Management System



ADEM IV uses a 32bit computer with sensors throughout the engine to regulate fuel delivery, valve timing and all other engine systems that require input to manage load and performance. ADEM IV also offers automatic altitude compensation, a cold mode startup strategy, oil pressure and coolant warnings which result in precise engine speed control, superior cold start capability, low smoke and emissions in all operating conditions.

Transmission



The extreme duty, planetary, powershift Cat transmission features heavyduty components to handle the toughest jobs. The four planet drives operate in all gears forward and reverse. Electronic controls provide features to enhance productivity, durability and serviceability. The additions of the Electronic Clutch Pressure Control ECPC contributes to improved shift quality, reduced torque spikes and overall transmission durability. Control Throttle Shift CTS offers smoother shifts and improves clutch and power train life.

Torque Converter



The torque converter uses a highcapacity impeller to handle the engines increased torque rise 24 percent and power.

HeavyDuty Axles



The fixed front and oscillating 13 degrees rear heavyduty axles feature strong gears and bearings in both the differentials and heavyduty final drives for increased durability. Permanently lubricated, maintenancefree Ujoints result in fewer parts and improved serviceability. Free floating axles shafts can be removed independently from the wheels and planetary drives.

Spindles and Final Drives



Planetary units can be removed independently from the wheels and brakes. The final drives feature planetary reduction at each wheel, and with torque developed at the wheel, less stress is placed on the axle shafts.

Differentials



Conventional front and optional NoSPIN rear differentials deliver maximum traction in low traction or inconsistent ground conditions.

Service Brakes



Completely enclosed and located on the two front wheels, the service brakes are selfadjusting with modulated engagement and are designed for easy servicing. With two brake pedals, the right pedal controls standard braking while engine deceleration and braking occurs with the left pedal.

Parking Brake



The springapplied, oilreleased, dry drum design parking brake is mounted on the transmission output shaft driveline for manual operation. The Caterpillar Monitoring System alerts the operator if the transmission is engaged while the parking brake is applied.

Secondary Brake



The secondary brake can be applied manually by the operator. In addition, the Caterpillar Monitoring System alerts the operator if pressure drops and will automatically apply the parking brake.

Cold Start



This feature is improved by not only ADEM IV but also a new larger starter and four higher CCA batteries 1000 CCA.

Hydraulics



Wellbalanced hydraulics deliver precise, loweffort control and troublefree operation.

Hydraulic System



The hydraulic system provides loweffort blade control. Seat mounted levers send electrical signals to a pilot valve mounted on the front frame, moving the sound, heat and effort caused by the hydraulic valve out of the operators station.

Command Control Steering



A mechanical feedback system combines with valve ratio to provide quarterturn, sidetoside steering. Unlike systems that rely on steering wheel velocity to activate steering cylinders, Command Control steering directly links the steering wheel position to articulation. The speed the machine turns is proportional to the steering wheel position. The benefit is precise control, quicker response and dramatically reduced operator motion and effort.

Hydraulic Power Steering



Centerpoint frame articulation permits the front and rear wheels to track with hydraulic power steering. The hydraulic system has fullflow filtering. The steering wheel operated pilot valve controls flow to the steering cylinders. The steering angle is 42 degrees.

Load Sensing Steering



With load sensing steering, machine performance is maximized because power is directed to the steering system only when the operator steers the machine. This allows more power to be applied to the ground when the machine is not being steered. It also helps decrease fuel consumption since the steering system does not constantly draw on the engine.

Positive Displacement Hydraulic Pumps



All hydraulic pumps are mounted on a single pump drive for improved serviceability

XT3 and XT6 Hose



Reliable XT3 ES and XT6 ES hoses, along with oring face seals and a large capacity life cylinder complete the hydraulic system. Reliable components reduce the risk of leaks and blown lines, helping protect the environment and reducing operating costs.

Automatic Blade Positioning



Operator automation is provided through the use of incylinder sensors and implement software.

Structures



Advanced design and materials provide superior strength to the purpose built structures.

Structure Construction



Combines the use of robotic welding on up to 90 percent of the 824H, while castings are used in several areas to increase strength by helping to spread the loads and reduce the number of parts. This provides highly consistent welds with deep plate penetration and excellent plate fusion. The benefits are increased durability and fatigue strength. The computer controlled machining ensures the alignment of pin bore, axle pad, cab mount and transmissionengine components.

Box Section Engine End Frame



Designed to resist twisting and torsional forces, the box section engine end frame provides a solid foundation for the axles, engine and transmission.

Dozer Front Frame



Built specifically to handle greater amounts of rimpull, the 824H can readily push its weight plus the weight of the material for long distances in heavy dozing applications.

Spread Hitch Design



The spread hitch design improves load distribution by reducing loads to the hitch bearings. The large center hitch design improves hydraulic line routing and makes service access easier.

Upper and Lower Hitch Pins



The hitch pins pivot on doubletapered roller bearings. Boxstyle sections in the hitch pins and crossmember assembly improve frame structure strength. Increased diameter lower hitch pins add to the robust design.

Engine and Transmission Mounts



A rubber isolation mount design reduces noise and vibration.

Blades



Multiple boxsection construction with heat treated moldboard and DH2 steel edges and end bits contribute to long life.

Operator Controls



Lift, tilt, tip and ABP are standard. The controls are conveniently located to the right of the operator.

Applications



The 824H excels at high production dozing and spreading fill, backfilling, stockpiling, charging hoppers, maintaining haul roads and cleaning up around job sites.

Blade Options



Contact your Cat dealer for blade options and availability that include

Straight Blade



Straight blade is used for general work.

Extended Wear Bulldozer Arrangement



The Extended Wear bulldozer arrangement is designed for moving large loads over long distances in harsh conditions. It consists of a 6.9 m3 9 yd3 Ublade with Abrasion Resistant Material ARM on the front and sides, cutting edges, push arms and integrated cylinder guards, and a heavyduty stabilizer.

Coal Blade



The coal blade can increase coal capacity up to 50 percent per cycle over standard Ublades.

Woodchip Universal Blade



The woodchip Ublade has a unique wing configuration that provides aggressive side setting into the chip pile, quickly knocking down stacked chips and loading the blade.

Universal Bulldozer Arrangement



6.9 m3 9 yd3 Universal blade for moving large loads over a long distance while retaining control of the load.

Custom Options



Ask your Cat dealer about Cat Work Tool or Custom options.

Operator Station and Controls



Ergonomically designed for operator comfort with loweffort controls increases efficiency and productivity.

Right and Left RearHinged Doors



A walkthrough operators station comes from right and left doors that can be fully opened and latched for easy entry and exit.

Sound Levels



A thick, nonmetallic floor, along with outside the cab hydraulics and a separated cooling system contribute to a quiet work environment.

Viewing Area



The internal ROPS and bonded front glass eliminate the distracting metal frames to help increase the viewing area. The angled hood and larger windows allow the operator to see objects closer to the machine.

Cat Comfort Series Seat



The sixway adjustable seat provides comfort by reducing the pressure on the lower back and thighs while offering unrestricted arm and leg movement. Air suspension adds to the overall comfort level by smoothing the ride over rough terrain.

Blade Control and Joystick



The pod is situated at an 18 degree angle for natural wrist positioning. The controller offers a sturdy handle for multiple hand positions. The actuation button for the blade tip function is located on the joystick, providing total blade control.

Storage Space



The cab features room for a lunch cooler, insulated bottle, cup and other personal items. A coathook is also provided.

Radio Ready



A 12volt, 15amp converter, speakers, antenna, all wiring and brackets for a communications or entertainment radio is provided.

Caterpillar Monitoring System



Gauges on the left side of the dash monitor fuel level, engine coolant, hydraulic oil and torque converter oil temperatures. The center panel contains the tachometerspeedometer. On the right side panel, a threelevel warning system provides fulltime monitoring of key functions. The system alerts the operator of immediate or impending problems with air inlet temperature, brake oil pressure, electrical system low voltage, engine oil pressure, engine overspeed, fuel filter status, parking brake status, steering oil pressure and transmission filter status.

12Volt Power Supply



Radios, phones and laptop computers can be powered from the cab with the 12volt, 15amp power supply provided. A laptop computer can run Cat Electronic Technician ET software to access the enhanced engine, transmission and blade control system diagnostics.

Service Brakes



Standard braking is offered with the right pedal.

Decelerator Pedal



Engine deceleration for the first 50 percent of travel is followed by the brakes engaging. This left pedal enables the operator to slow down when the throttle lock is engaged and return to throttle lock without pressing a button.

Throttle Lock



Similar to cruise control in an automobile, throttle lock allows the operator to preset the engine speed for operator and machine efficiency.

Air Conditioning



Blended air provides immediate temperature changes, clears windows with ease and improves operator comfort. The system is located behind the operators seat and uses R134a refrigerant.

Ventilation Ducts and Vents



More airflow is directed to the operator and windows, while postmounted vents direct air to the rear windows.

Automatic Blade Positioning ABP



This patented system is intended to lower fatigue, increase comfort and make operators more productive. It mimics manual functions by automatically lowering the blade when the machine is shifted forward and raising it in reverse. The set points to where the blade raises and lowers can be easily changed from inside the cab. Additionally, a kickout feature of the system will allow the operator to raiselower the blade without having to hold the joystick in place. The operator always maintains full control of the blade during this cycle with the ability to override ABP.

Serviceability



Having easy daily maintenance is the way to get it done.

Caterpillar Monitoring System



Diagnostics are provided that allow technicians to review a machines operation and quickly troubleshoot problems. Operating parameters, diagnostic codes and outofrange gauge readings are displayed through the diagnostic connector. There are also pressure taps for easy hydraulic system checks.

Service Access



Scheduled maintenance points are well within reach. A remote grease fitting is provided to lubricate the lift cylinder yoke. Removable tread plates in the platform give access to less commonly serviced components. With the 824H, the transmission ECPC pressure taps are now located behind the cab, under the platform door for easy access.

Daily Maintenance



Lockable ground level service doors give quick access to engine oil fill and dipstick, coolant sight gauge, rear frame grease fittings, relay panel and electrical breakers. All four maintenancefree batteries are secure in a builtin battery box located in the right rear frame. Ujoints are lifetime lubricated, leaving the slip joint as the only driveline component needing grease.

Filter Access



The left platform offers access to the primary filter, while the engine oil filter is accessed from the right platform.

Air Filter Restriction Sight Gauge



This can be viewed from the cab or platform.

Transmission Oil Fill Tube



The tube is located beneath the platform area and the transmission oil dipstick sight gauge is located next to the fill tube for easy maintenance.

500 Hour Oil Change Interval



Uptime and production are increased by doubling the time between oil and filter changes without requiring increased oil sump capacity.

Separated Cooling System



The fan and radiator are isolated away from the engine for a quieter running machine. NGMR reduces radiator repair time. The new metal engine enclosure is completely redesigned for greater durability and to provide easy access for daily maintenance and inspection.

Hinged Hydraulic Oil Cooler



This can be swung open 30 degrees without special tools.

Hinged Air Conditioning Condenser



This swings open 30 degrees and coupled with the swingout oil cooler, allows the cooling system to be cleaned quickly and easily.

Operator Station



In about 45 minutes, the operator station can be removed or replaced without having to disconnect hydraulic lines. Quick disconnect couplings allow fast disconnect of the air conditioning unit without releasing refrigerant.

Engine Shutdown Switch



This switch is located inside the left radiator screen door for simple access and extended switch life.

Bolton Bumper



The angle of departure is improved from 18 degrees to 20 degrees by shortening the overall machine length.

Battery Box



Maintenancefree batteries are located in the battery box located in the right side bumper for convenient access.

Tool Box



The tool box is located in the left side bumper to provide additional protection against harsh work environments.

Optional Features



Available options can augment the 824H and meet your needs.

Full Coverage Fenders



The front fenders extend beyond the outermost surface of the machine to prevent mud from splattering the front and side windows and to keep rocks from flying into window glass. The optional full coverage fender package includes front fenders with mud flaps. Full coverage rear fenders extend to the bumper, along with a rear rubber lateral fender extension to ensure the entire tire width is covered.

Optional Counterweight



This feature is located on either side of the front frame. For each specific application, there is a correct machine weight for proper balancing of traction, flotation, mobility and response. Lower machine weight is usually required for typical second gear applications such as fill spreading, stockpiling, road maintenance, towing implements and shovel cleanup. Higher machine weight is usually required for such typical first gear applications as heavy dozing and pushloading.

Optional Sliding Cab Window



Located in the right and left doors are optional sliding windows to provide access to outside air without opening the door.

Floodlights



Located on the 824H exterior, floodlights are super damp and will last up to seven times longer than previous lights. An auxiliary light package with the cab two facing forward and two facing rearward is available.

Fast Fuel Fill



High speed fueling allows your 824H to stay in production longer.

Cat Product Link Attachment



Product Link allows tracking of machine location and service hours through global positioning technology GPS and provides all logged diagnostic codes. This feature is available to dealers in North America and certain licensed countries. To verify if a license exists for your location, please contact your Cat dealer.

Complete Customer Support



Caterpillar dealers are there to help you keep your machines up and running for maximum productivity.

Machine Selection



Make detailed comparisons of the machines under consideration before purchasing. Cat dealers can estimate component life, preventive maintenance cost and the true cost of lost production.

Purchase



Look past initial price. Consider the financing options available as well as daytoday operating costs. 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.

Customer Support Agreements



Cat dealers offer a variety of product support agreements and work with their customers to develop a plan that best meets specific needs. These plans can cover the entire machine, including attachments, to help protect the customers investment.

Product Support



You will find nearly all parts at our dealer parts counter. Cat dealers use a worldwide computer network to find instock parts to minimize downtime. Save money with genuine Cat Reman parts. You receive the same warranty and reliability as new products at cost savings of 40 to 70 percent.

Operation



Improving operating techniques can boost your profits. Your Cat dealer has training video tapes, literature, application and equipment training courses and other ideas to help you increase productivity.

Maintenance Services



More equipment buyers are planning for effective maintenance before buying equipment. Choose from your Cat dealers 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 SOSSM and Coolant Sampling and Technical Analysis help you avoid unscheduled repairs.

Replacement



Repair, rebuild or replace Your Cat dealer can help you evaluate the cost involved so you can make the right choice.


Engine
Engine Model
Cat® C15 ACERT™
Net Power
354 hp
Flywheel Power
354 hp
Gross Power
401 hp
Direct Drive Net Power - Caterpillar
354 hp
Direct Drive Net Power - EEC 80/1269
354 hp
Direct Drive Net Power - ISO 9249
354 hp
Direct Drive Net Power - SAE J1349 (JAN90)
350 hp
Converter Drive Net Power - Caterpillar
354 hp
Converter Drive Net Power - EEC 80/1269
354 hp
Converter Drive Net Power - ISO 9249
354 hp
Converter Drive Net Power - SAE J1349 (JAN90)
350 hp
Net Power - SAE J1349 (JAN90)
350.01 hp
Bore
5.4 in
Stroke
6.7 in
Displacement
928 in3
Cylinders
6

Weights
Operating Weight
63325 lb

Operating Specifications
Ground Clearance
14.09 in

Transmission
Number of Forward Speeds
4
Number of Reverse Speeds
4
Converter Drive - Forward 1
3.8 mph
Converter Drive - Forward 2
6.5 mph
Converter Drive - Forward 3
11.5 mph
Converter Drive - Forward 4
20 mph
Converter Drive - Reverse 1
4.3 mph
Converter Drive - Reverse 2
7.5 mph
Converter Drive - Reverse 3
13 mph
Converter Drive - Reverse 4
22.7 mph

Hydraulic System
Lift cylinder, bore and stroke
120.65 mm x 915 mm (4.75 in x 36.0 in)
Steering cylinder, bore and stroke
114.3 mm x 576 mm (4.5 in x 22.7 in)
Right tilt and tip, bore and stroke
152.4 mm x 255 mm (6 in x 10.0 in)
Left tilt and tip, bore and stroke
133.75 mm x 255 mm (5.3 in x 10.0 in)
Relief valve setting
3500 psi

Blade Specifications
Blade Capacities
4.67 m3 - 16 m3 (6.1 yd3 - 21 yd3)
Straight Blade - Capacity
14.78 yd3
Straight Blade - Overall Width
1.4 ft
Straight Blade - Height
4.03 ft
Straight Blade - Digging Depth
1.4 ft
Straight Blade - Ground Clearance
3.51 ft
Straight Blade - Maximum Tilt
3.88 ft
Straight Blade - Weight
7047 lb
Straight Blade - Total Operating Weight
63325 lb
Universal Blade - Capacity
9 yd3
Universal Blade - Overall Width
14.23 ft
Universal Blade - Height
4.48 ft
Universal Blade - Digging Depth
1.7 ft
Universal Blade - Ground Clearance
3.14 ft
Universal Blade - Maximum Tilt
3.74 ft
Coal Blade - Capacity
20.93 yd3
Coal Blade - Overall Width
15.75 ft
Coal Blade - Height
5.92 ft
Coal Blade - Digging Depth
1.76 ft
Coal Blade - Ground Clearance
3.48 ft
Coal Blade - Maximum Tilt
4.11 ft
Semi-U Blade - Capacity
9 yd3
Semi-U Blade - Overall Width
14.56 ft
Semi-U Blade - Height
5.2 ft
Semi-U Blade - Digging Depth
1.78 ft
Semi-U Blade - Maximum Tilt
3.83 ft

Service Refill Capacities
Fuel Tank - standard
185 gal
Cooling system
21.9 gal
Crankcase
9 gal
Transmission
16.4 gal
Hydraulic tank
23.2 gal
Differentials and final drives - Front
23.8 gal
Differentials and final drives - Rear
23.8 gal

Dimensions
Height to Top of Cab
12.14 ft
Height to Top of Exhaust Pipe
11.78 ft
Height to Top of Hood
8.64 ft
Ground Clearance to Bumper
2.9 ft
Height to Bottom of Ladder
1.46 ft
Center Line of Rear Axle to Edge of Bumper
8.82 ft
Center Line of Rear Axle to Hitch
6.07 ft
Wheelbase
12.14 ft
Length with Blade on Ground
26.98 ft
Ground Clearance
1.17 ft