824H
1
Page 130 • April 20, 2005 • www.cegltd.com • CONSTRUCTION EQUIPMENT GUIDE Meeting Tier 3 Standards… Cat Introduces 824H Wheel Dozer The new 824H wheel dozer from Caterpillar meets U.S. Environmental Protection Agency Tier 3 emissions standards, while delivering outstand- ing performance, long life and low operating costs. The new model retains the best fea- tures of its predecessor, including high-efficiency, low-effort hydraulics, durable structures and a comfortable cab. It also incorporates new engine and cooling system technologies, two additional blade options and other improvements that make the machine easier to operate and service. Emissions Reduction Technologies The most significant change to the 824H is its engine, a new Cat C15, rated at 354 net hp (264 net kW) at 1,800 rpm. This six-cylin- der 15.2-L engine features ACERT Technology, a Cat emissions reduction solu- tion. Key elements of the ACERT Technology solu- tion include the following: • A cross-flow cylinder head that brings more clean air into the combustion chamber and improves air distribution, ensuring a cleaner combustion process. • A waste-gated, water-cooled tur- bocharger that also improves air flow and reduces emissions. • A mechanically-actuated, electron- ically-controlled unit injection system that delivers micro-bursts of fuel to the combustion chamber — just prior to and after the main injection — improv- ing control over emissions. • A 32-bit ADEM IV control system that manages the fuel injection process and other power train operations with precision and accuracy, reducing emis- sions, while boosting performance and maximizing component life. This combination of technologies makes the engine in the 824H clean, quiet, fuel efficient and compliant with the latest emissions standards in the United States and the European Union. The engine is electronically config- ured to provide constant net horsepow- er throughout the operating range, so productivity remains high even when the engine is subjected to parasitic loads. Straight-thread o-ring connection points in the block deliver leak-free performance, despite the engine’s high internal pressures. The one-piece, gray-iron block has generous ribbing for extra stiffness and heavy bearing bulkheads for rigidity and strength. A one-piece, all-steel piston design maintains structural integrity, despite the 18:1 compression ratios in the combustion chamber. Larger piston pins, connecting rods and rod bearings enhance durability. Metallurgical improvements to the rod bearing also contribute to longer wear life. A newly-designed head gas- ket, made of graphite and steel com- posite, seals the combustion chamber with better rigidity and wear capabili- ty. Improved Performance, Operation, Serviceability The 824H incorporates other impor- tant upgrades. Inside the cab, the controller has been redesigned to include a tilt/tip switch on the joystick for more con- venient operation. A new automatic blade positioning system also makes the operator’s job easier. It automatically lowers the blade when the machine is shifted for- ward and raises it in reverse, improv- ing operator comfort and productivity. To further reduce fatigue, a kickout feature allows the operator to raise and lower the blade without having to hold the joystick in place. The cooling system on the 824H has been updated to enhance performance and serviceability. The next generation modular radiator has copper-alloy cores, copper-brazed for high joint integrity. Its tubes, side sheets, header plate and tank are made of brass for extra durability. Cooling capabilities also have been enhanced through the use of a demand fan that automatically adjusts fan speed to match coolant temperature. To improve serviceability, pressure taps for the electronic clutch pressure control transmission have been relo- cated to a convenient spot behind the cab. Options A 9-cu.-yd. (6.9 cu m) universal blade is now available for the 824H. An extended wear blade package also is offered as an option. It includes abra- sion resistant material on the blade, push arms and cutting edges, as well as guards for the tilt cylinders. The wheel dozer can be outfitted with an optional product link system from Caterpillar. Product Link uses satellite technology and the Internet to monitor machine location, service meter hour and product health infor- mation. The machine also comes equipped with all the brackets and wiring neces- sary to install the Computer Aided Earthmoving System (CAES) from Caterpillar. CAES is an automated production tool that combines onboard sensors, advanced control systems and GPS technology to improve efficiency and reduce operating costs. The most significant change to the 824H is its engine, a new Cat C15, rated at 354 net hp (264 net KW) at 1,800 rpm. This six-cylinder 15.2-L engine features ACERT Technology. Subscribe to CEG today... Get an edge on your competition! Construction Equipment Guide Northeast Edition subscribers are the best informed about construction news, construction equipment, sales, auctions, equipment prices, trends and changes in the industry and activities of its people. Call Toll Free! We now accept Visa, Mastercard & American Express! SUBSCRIPTIONS: 470 Maryland Dr. • Ft. Washington, PA19034 Email: [email protected] TOLL FREE 1-800/523-2200 FAX 215/885-2910 ® CARDMEMBER’S NAME_________________________________________________________ COMPANYNAME_______________________________________________________________ STREET____________________________________ PHONE NO.________________________ CITY______________________________________STATE _______ ZIP ________________ TYPE OF BUSINESS _____________________________________________________________ Check Enclosed VISA MASTERCARD American Express CARD NUMBER EXP. DATE (Mo./Yr.) SIGNATURE OF AUTHORIZED CARDHOLDER One Year $65 (within United States &Puerto Rico Only)
-
Upload
juan-asarcado -
Category
Documents
-
view
3 -
download
0
description
boletin tecnico
Transcript of 824H
Page 130 • April 20, 2005 • www.cegltd.com • CONSTRUCTION EQUIPMENT GUIDE
Meeting Tier 3 Standards…
Cat Introduces 824H Wheel DozerThe new 824H wheel dozer from
Caterpillar meets U.S. EnvironmentalProtection Agency Tier 3 emissionsstandards, while delivering outstand-ing performance, long life and lowoperating costs.
The new model retains the best fea-tures of its predecessor, includinghigh-efficiency, low-effort hydraulics,durable structures and a comfortablecab. It also incorporates newengine and cooling systemtechnologies, two additionalblade options and otherimprovements that make themachine easier to operateand service.
Emissions ReductionTechnologies
The most significantchange to the 824H is itsengine, a new Cat C15, ratedat 354 net hp (264 net kW)at 1,800 rpm. This six-cylin-der 15.2-L engine featuresACERT Technology, a Catemissions reduction solu-tion.
Key elements of theACERT Technology solu-tion include the following:
• A cross-flow cylinderhead that brings more cleanair into the combustionchamber and improves airdistribution, ensuring acleaner combustion process.
• A waste-gated, water-cooled tur-bocharger that also improves air flowand reduces emissions.
• A mechanically-actuated, electron-ically-controlled unit injection systemthat delivers micro-bursts of fuel to thecombustion chamber — just prior toand after the main injection — improv-ing control over emissions.
• A 32-bit ADEM IV control systemthat manages the fuel injection processand other power train operations withprecision and accuracy, reducing emis-sions, while boosting performance andmaximizing component life.
This combination of technologiesmakes the engine in the 824H clean,quiet, fuel efficient and compliant withthe latest emissions standards in theUnited States and the European Union.
The engine is electronically config-ured to provide constant net horsepow-er throughout the operating range, soproductivity remains high even whenthe engine is subjected to parasiticloads.
Straight-thread o-ring connectionpoints in the block deliver leak-free
performance, despite the engine’s highinternal pressures. The one-piece,gray-iron block has generous ribbingfor extra stiffness and heavy bearingbulkheads for rigidity and strength.
A one-piece, all-steel piston designmaintains structural integrity, despitethe 18:1 compression ratios in thecombustion chamber. Larger pistonpins, connecting rods and rod bearings
enhance durability. Metallurgical improvements to the
rod bearing also contribute to longerwear life. A newly-designed head gas-ket, made of graphite and steel com-posite, seals the combustion chamberwith better rigidity and wear capabili-ty.
Improved Performance,Operation, Serviceability The 824H incorporates other impor-
tant upgrades. Inside the cab, the controller has
been redesigned to include a tilt/tipswitch on the joystick for more con-venient operation.
A new automatic blade positioningsystem also makes the operator’s jobeasier. It automatically lowers theblade when the machine is shifted for-ward and raises it in reverse, improv-ing operator comfort and productivity.
To further reduce fatigue, a kickoutfeature allows the operator to raise andlower the blade without having to holdthe joystick in place.
The cooling system on the 824H hasbeen updated to enhance performance
and serviceability. The next generationmodular radiator has copper-alloycores, copper-brazed for high jointintegrity. Its tubes, side sheets, headerplate and tank are made of brass forextra durability.
Cooling capabilities also have beenenhanced through the use of a demandfan that automatically adjusts fanspeed to match coolant temperature.
To improve serviceability, pressuretaps for the electronic clutch pressurecontrol transmission have been relo-cated to a convenient spot behind thecab.
OptionsA 9-cu.-yd. (6.9 cu m) universal
blade is now available for the 824H.An extended wear blade package alsois offered as an option. It includes abra-sion resistant material on the blade,push arms and cutting edges, as well asguards for the tilt cylinders.
The wheel dozer can be outfittedwith an optional product link systemfrom Caterpillar. Product Link usessatellite technology and the Internet tomonitor machine location, servicemeter hour and product health infor-mation.
The machine also comes equippedwith all the brackets and wiring neces-sary to install the Computer AidedEarthmoving System (CAES) fromCaterpillar. CAES is an automatedproduction tool that combines onboardsensors, advanced control systems andGPS technology to improve efficiencyand reduce operating costs.
The most significant change to the 824H is its engine, a new Cat C15, rated at 354net hp (264 net KW) at 1,800 rpm. This six-cylinder 15.2-L engine features ACERTTechnology.
SSuubbssccrriibbee ttooCCEEGG ttooddaayy......
GGeett aann eeddggee oonn yyoouurr ccoommppeettiittiioonn!!Construction Equipment Guide Northeast Edition subscribers are the bestinformed about construction news, construction equipment, sales, auctions,equipment prices, trends and changes in the industry and activities of its people.Call Toll Free! We now accept Visa, Mastercard & American Express!
SUBSCRIPTIONS:
470 Maryland Dr. • Ft. Washington, PA 19034Email: [email protected]
TOLL FREE1-800/523-2200FAX 215/885-2910
®
CARDMEMBER’S NAME _________________________________________________________
COMPANY NAME _______________________________________________________________
STREET____________________________________ PHONE NO. ________________________
CITY ______________________________________STATE _______ ZIP ________________
TYPE OF BUSINESS _____________________________________________________________
Check Enclosed VISA MASTERCARD American Express
CARD NUMBER
EXP. DATE(Mo./Yr.)
SIGNATURE OF AUTHORIZED CARDHOLDER
One Year $65(within United States & Puerto Rico Only)
