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328D LCR |
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Hydraulic Excavator |
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Engine
Engine Model |
Cat® C7 ACERT™ |
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Net Flywheel Power |
152 kW |
204 hp |
Weights |
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Operating Weight |
34 700 kg |
76,500 lb |
•Reach boom, R3.2CB2 (10 ft 6 in) Stick, 1.2 m3 (1.57 yd3) Bucket, 850 mm (34 in) Shoes.
328D LCR Hydraulic Excavator
The D Series incorporates innovations for improved performance and versatility.
C7 with ACERT™ Technology |
Hydraulics |
Operator Station |
ACERT™ Technology works at the point of combustion to optimize engine performance and provide low exhaust emissions to meet U.S. EPA Tier 3 emission regulations, with exceptional performance capabilities and proven reliability. pg. 4
Versatility
Caterpillar offers a wide variety of factory-installed attachments that enhance performance and job site management. pg. 11
The hydraulic system has been designed to provide reliability and outstanding controllability. An optional Tool Control System provides enhanced flexibility. pg. 5
Service and Maintenance
Fast, easy service has been designed in with extended service intervals, advanced filtration, convenient filter access and user-friendly electronic diagnostics for increased productivity and reduced maintenance costs. pg. 12
Provides maximum space, wider visibility and easy access to switches. The monitor is a full-color graphical display that allows the operator to understand the machine information easily. Overall, the new cab provides a comfortable environment for the operator. pg. 6
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Structures
Caterpillar® design and manufacturing techniques assure outstanding durability and service life from these important components. pg. 8
Booms, Sticks and Bucket Attachments
Designed for maximum flexibility, productivity and high efficiency on all jobs, the 328D LCR offers a range of configurations suitable for a variety of applications. pg. 9
Complete Customer Support
Your Cat® dealer offers a wide range of services that can be set up under a customer support agreement when you
purchase your equipment. The dealer will help you choose a plan that can cover everything from machine configuration to eventual replacement. pg. 13
Work Tools – Attachments
A variety of work tools, including buckets, couplers, hammers, and shears are available through Cat® Work Tools. pg. 10
New Feature
Image may contain optional attachments
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C7 with ACERT™ Technology
Built for power reliability, economy and low emissions.
Cat® C7 ACERT. The Cat C7 with ACERT™ Technology introduces a series of evolutionary, incremental
improvements that provide breakthrough engine technology. The building blocks of ACERT Technology are fuel delivery, air management and electronic control. ACERT Technology optimizes engine performance while meeting U.S. EPA Tier 3 engine emission regulations.
Performance. The 328D LCR, equipped with the C7 engine with ACERT Technology, provides 8% more horsepower as compared to the 3126B ATAAC HEUI in the 325C LCR.
Automatic Engine Speed Control.
The two-stage, one-touch control maximizes fuel efficiency and reduces sound levels.
ADEM™ A4 Engine Controller.
The ADEM A4 electronic control module manages fuel delivery to get the best performance per liter (gallon) of fuel used. The engine management system provides flexible fuel mapping, allowing the engine to respond quickly to varying application needs. It tracks engine and machine conditions while keeping the engine operating at
peak efficiency.
Electronic Control Module. The Electronic Control Module (ECM) works as the “brain” of the engine’s control system, responding quickly to operating variables to maximize engine efficiency. Fully integrated with sensors in the engine’s fuel, air, coolant, and exhaust systems, the ECM stores and relays information on conditions such as rpm, fuel consumption, and diagnostic information.
Fuel Delivery. The Cat C7 features electronic controls that govern the fuel injection system. Multiple injection fuel delivery involves a high degree of precision. Precisely shaping the combustion cycle lowers combustion chamber temperatures, generating fewer emissions and optimizing fuel combustion. This translates into more work output for your fuel cost.
Cooling System. The cooling fan is directly driven from the engine. An electrically controlled viscous clutch fan is utilized to reduce fan noise. The optimum fan speed is
calculated based on the target engine speed, coolant temperature, hydraulic oil temperature and actual fan speed. The 328D LCR incorporates side by side cooling, allowing easy access to keep the cooling cores free of debris.
Air Cleaner. The radial seal air filter features a double-layered filter core for more efficient filtration and is located in a compartment behind the cab. A warning is displayed on the monitor when dust accumulates above a preset level.
Noise Reduction Technologies.
The engine mounts are rubber-isolating mounts matched with the engine package. Further noise reduction has been achieved through design changes to
the isolated top cover, oil pan, multiple injection strategy, insulated timing cover, sculpted crankcase and gear train refinements.
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Hydraulics
Cat® hydraulics deliver power and precise control to keep material moving.
Component Layout. The hydraulic system and component locations have been designed to provide a high level of system efficiency. The main pumps, control valves and hydraulic tank are located close together. This allows
for shorter tubes and lines between components, which reduce friction loss, and pressure drops in the lines. The layout further provides greater operator comfort by placing the radiator on the cab side of the upper structure. This allows incoming air to enter the engine compartment from the operator side. Hot air and corresponding engine sound exits on the opposite side away from the operator. This reduces engine compartment heat and sound being transmitted to the operator.
Pilot System. The pilot pump is independent from the main pumps and controls the front linkage, swing and travel operations.
Hydraulic Cross Sensing System.
The hydraulic cross sensing system utilizes each of two hydraulic pumps to 100 percent of engine power, under all operating conditions. This improves productivity with faster implement speeds and quicker, stronger pivot turns.
Boom and Stick Regeneration Circuit.
Boom and stick regeneration circuit saves energy during boom-down and stick-in operation. This increases operator efficiency, reduces cycle times and pressure loss. Benefits include higher productivity, lower operating costs and increased fuel efficiency.
Auxiliary Hydraulic Valve. The auxiliary valve is standard on the 328D LCR. Control Circuits are available as attachments, allowing for operation
of high and medium pressure tools. These include shears, grapples, hammers, pulverizers, multi-processors and vibratory plate compactors.
Hydraulic Cylinder Snubbers.
Snubbers are located at the rod-end of the boom cylinders and both ends of the stick cylinders. Benefits include reducing sound levels, cushion shocks while extending component life.
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Operator Station
Designed for comfort, simple and easy operation, the 328D LCR allows the operator to focus on production.
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Operator Station. The workstation is spacious, quiet and comfortable, assuring high productivity during a long workday. The attachment switches, key switch and throttle dial are conveniently located on the right-hand wall. The monitor is easy to see and maximizes visibility.
Monitor. The monitor is a full color 400x234 pixels Liquid Crystal Display (LCD) graphic display.
The angle can be adjusted to minimize sun glare and has the capability of displaying information in twenty-seven different languages.
Pre-Start Check. Prior to starting the machine, the system will check for low fluid levels. These include engine oil, hydraulic oil and engine coolant.
The event display area warns the operator if one of the conditions exists.
Gauge Display. Three analog gauges, fuel level, hydraulic oil temperature and coolant temperature, are displayed in this area.
Event Display. Machine information is displayed in this area with the icon and language.
Multi-information Display. This area is reserved for displaying various
information which is convenient for the operator. The “CAT” logo is displayed when no information is available to
be displayed.
Standard Cab Equipment. To enhance operator comfort and productivity, the cab includes a drink holder, coat hook, service meter, literature holder and magazine rack.
Console. Redesigned consoles feature a simple, functional design to reduce
operator fatigue, ease of switch operation and excellent visibility. Both consoles have attached armrests with height adjustments.
Seat. A new optional air suspension seat is available in the 328D LCR. The standard and optional seats provide a variety of adjustments to suit the operator’s size and weight including fore/aft, height and weight. Wide adjustable armrests and a retractable seat belt are also included.
Joystick Control. The joystick controls are designed for low lever effort and match operator’s natural wrist and arm position. The operator can operate the joystick controls with an arm on the armrest. Horizontal and vertical strokes have been designed to reduce operator fatigue.
Hydraulic Activation Control Lever.
For added safety, this lever must be in the operate position to activate the machine control functions.
Automatic Climate Control. Fully automatic climate control adjusts temperature and flow, and determines which air outlet is best in each situation with a touch of a button.
Cab Exterior. The exterior design uses thick steel tubing along the bottom perimeter of the cab, improving the resistance of fatigue and vibration. This design allows the FOGS to be bolted directly to the cab, at the factory or as an attachment later, enabling the machine to meet specifications and job site requirements.
Cab Mounts. The cab shell is attached to the frame with viscous rubber cab mounts, which dampen vibrations and sound levels while enhancing operator comfort.
Windows. All glass is affixed directly to the cab for excellent visibility eliminating window frames. The upper front windshield opens, closes and stores on the roof above the operator with a one-touch action release system.
Wipers. Pillar-mounted wipers increase the operator’s viewing area and offer continuous and intermittent modes.
Skylight. An enlarged skylight with sunshade provides excellent visibility and ventilation.
Door. The 328D LCR features a curved sliding door. This feature is ideal for those situations when space is restricted and opening a conventional door is not permissible.
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Structures
328D LCR structural components and undercarriage are the backbone of the machine’s durability.
Robotic Welding. Up to 95% of the structural welds on a Caterpillar® Excavator are completed by robots. Robotic welds achieve over three times the penetration of manual welds.
Carbody Design and Track Roller Frames. X-shaped, box-section carbody provides excellent resistance to torsional bending. Robot-welded track roller frames are press-formed, pentagonal units to deliver exceptional strength and service life.
Main Frame. Rugged main frame is designed for maximum durability and efficient use of materials.
Swing Bearing. The swing bearing utilizes cross roller bearings versus the traditional ball bearing design. The cross roller bearing design allows for more surface contact to absorb the stresses that are a result of the high swing torque that Cat offers. It provides exceptional machine stability and reduces machine pitching during boom down operation.
Undercarriage. Durable Cat undercarriage absorbs stresses and provides excellent stability.
Rollers and Idlers. Sealed and lubricated track rollers, carrier rollers, and idlers provide excellent service life, to keep the machine in the field longer.
Long Undercarriage. The long (L) undercarriage maximizes stability and lift capacity. Two additional track links have been added to the 328D LCR. This long, wide, and sturdy undercarriage offers a very stable work platform.
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