320C vs 320D

Caterpillar Product Information

Product Bulletin February 2007

Cat® 320D/320D L Cat Hydraulic Excavators – LACD

For Dealer Sales Personnel This document supplements information in the Specalog. Marketing content will be available only on secured dealer extranets and by accessing the PDF in the Electronic Sales Library.

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Table of Contents

Overview Overv iew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 What’s New . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 What’s What’s New – More Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 What’s New – Reliability Improvements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 What’ss New – Increased Versatility What’ Versatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 What’ss New – Lower Owning and Operating Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 What’ What’ss New – More Operator Comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 What’ What’s New – Better Serviceability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 What’ss New – New Styling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 What’ Competitive Situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 C6.4 with ACERT™ Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Hydraulics Hydra ulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Operator Opera tor Comfort Comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Structures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Booms, Sticks and Bucket Linkages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Work Tools Tools – Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Service and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Technical Te chnical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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Cat 320D/320D L Hydrauli lic c Excavators – LACD

February 2007

Overview

The 300 family excavators have been well-received by customers worldwide. A Series machines created a breakthrough, and the B and C series successfully introduced new technologies and maintained the tradition initiated with the A Series. The D Series incorporates i ncorporates innovations that have been introduced to improve the ® competitiveness of Cat Hydraulic Excavators. International marketing, design and manufacturing teams developed D Series excavators excavators based on the surveys of customer needs and market and product-trend research.

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What’ss New What’

Caterpillar is pleased to introduce the 320D as a direct replacement of the 320C. Since the introduction of the 300 family excavators, excavators, they have become the industry standard for a large variety of applications. The new 320D builds upon and further enhances the attributes that the C Series excavators delivered. The 320D delivers: More Performance

• C6.4 engine engine with with ACER ACERT™ T™ Techn echnolog ology y • Incr Increase eased d lift lift capaci capacity ty • Increase Increased d bucket bucket and stick stick forces forces • Imp Improv roved ed controll controllabil ability ity Reliability Improvements

• ACER CERT T Techno Technology logy • Rob Robust ust po power wer link • Increase Increased d pin sizes sizes (Mass Confi Configuration guration only) • Imp Improv roved ed spring spring recoil recoil system system • Stra Straight ight bearin bearing g on front front linkage linkage Increased Versatility

• More auxi auxiliar liary y option optionss • Enh Enhance anced d tool tool contr control ol • Field installed installed kits kits to match match factory factory installed installed kits • Mor Moree attac attachm hment entss

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February 2007

What’ss New What’

Lower Owning and Operating Costs

• Incr Increase eased d service service interva intervals ls • AC ACER ERT T advantages advantages vs. vs. competition competition • Ec Econ onom omy y Mode Mode More Operator Comfort

• Im Impro prove ved d layou layoutt • Imp Improv roved ed venti ventilati lation on • New monitor with more function functionality ality • Mor Moree seat seat opti option onss Better Serviceability

• Improv Improved ed ground-l ground-level evel access New Styling with Power Power Edge™ Trade Dress

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What’ss New – More Performance What’ Performance

Cat® C6.4 Engine The 320D is equipped with the C6.4 Engine with ACERT Technology. The C6.4 replaces the 3066 TA found in the 320C. The ACERT ACERT Technology introduces a series seri es of evolutionary, incremental improvements that provide breakthrough engine technology. The building blocks of ACERT ACERT Technology are fuel delivery, air management and electronic control. ACERT Technology optimizes engine performance while meeting the US EPA Tier 3 engine emission regulations for off-road applications (where required).

Engine Performance Net power for the 320D is 103 kW (138 hp). The engine features long-stroke piston movement for high torque at medium to low speeds, which provides excellent productivity in the toughest working environments.

ADEM™ A4 Engine Controller The ADEM A4 electronic control module manages fuel delivery to get the best performance per unit of fuel consumed. 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 and peak efficiency.

Higher Bucket and Stick Forces With the increases system pressure and the geometry changes to the stick, the 320D offers up to 7% more force than the 320C. The additional additi onal forces can lead to faster cycle times when digging in tightly compacted materials or soil.

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February 2007

What’ss New – More Performance What’ Performance

Improved Lift Capacity The 320D offers additional lift capacity over the 320C because of three main contributors: • Increase Increased d system pressure pressure from 34.3 bar bar (4,974 psi) to 35 bar (5,076 (5,076 psi). • Addition of of Heavy Lift, Lift, which increases increases pressures pressures an additional additional 3% to 36 bar (5,220 psi). psi). • Geometr Geometry y changes to the stick that gives gives the 320D better leverage leverage at certain certain lift points. These changes lead to an overall lift capacity improvement of 5%.

Improved Controllability The 320D offers a new generation main valve stem that improves combined movements. This leads to: • Eas Easier ier level leveling ing abilit ability y • Fas Faster ter combine combined d moveme movement nt • Bett Better er joysti joystick ck respon response se Febru rua ary 2007

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What’ss New – Reliability Improvements What’ Improvements

ACERT Technology The Caterpillar long–term emission solution is one of the most tested and proven technologies. It has been tested in thousands of on-highway trucks logging hundreds of millions of miles as well as being proven on thousands of off-road equipment models in grueling applications all over the world.

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February 2007

What’s New – Reliability Improvements

Robust Power Link Because of the increased forces offered on the 320D, the power link has been redesigned to be more durable and robust. The power link now includes an integrated lift eye that makes using a proper sized shackle when lifting objects easier. Lifting from this position gives you the best lift performance because it lowers the load point, allowing more use of the boom cylinders.

Increased Pin Sizes The pin sizes on the Mass Excavation Configuration have been increased from 80 mm to 90 mm at the bucket to stick pin joints. Because forces have increased by 7%, the pins were increased to meet the additional stress created.

Model 320

Model 320

Boom Re a c h Mass

Boom Re a c h Mass

C-Series Bucket Family B C D-Series Bucket Family B1 CB2

Pin Diameter PT8/PT10 80/80 80/80

Boss Width mm (in) 311 (12) 386 (15)

Pin Diameter PT8/PT10 80/80 90/90

Boss Width mm (in) 311 (12) 386 (15)

The difference between the B1 linkage for the 320D and the B linkage for the 320C is the increased stroke of the stick cylinder. B Family buckets that were compatible with the reach configuration on the 320C will be able to be used on the 320D.

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What’s New – Reliability Improvements

Spring Recoil System The function of this system is to relieve track tension when excess material builds up between the sprocket and the track. Excess tension can lead to final drive or idler breakage as well as undercarriage frame bending. To address this, the stroke of the system has been increased by 26%, which allows for sufficient clearance between track and sprocket, preserving undercarriage components.

Straight Bearings In order to better absorb the stresses put on the front linkage, the bearings for the boom foot and boom to stick have been replaced with straight bearings. This allows more surface contact area and allows less pin movement while under loaded conditions.

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February 2007

What’s New – Increased Versatility

Hydraulic Auxiliary Options There are three hydraulic auxiliary options can be ordered factory installed: • Single-function circuit – ideal for tools that require one-way one-way flow and two pump pump output, such as hammers, vibratory plate compactors. Control of the tool is by a foot switch located on the left side of the cab floor. Flows can be set through the monitor. • New Tool Tool Control System without without medium pressure pressure – this system allows you to choose between between one or two-way non-rotating tools, one or two pump flow. flow. Flows and pressures can be set through the monitor. • Tool Control System System with medium pressure pressure – this system can run all of the tools listed above as well as rotating tools. Flows and pressures can be set through the monitor.

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Enhanced Tool Control The Tool Control System improvements: • As many as 10 Work Work Tool Tool Settings can be stored stored in the monitor. monitor. • Choice of preset Cat Work Work Tools Tools – saves saves time setting up flows flows and pressures. • Attachm Attachment ent controller controller is now now part of the the machine machine ECM. • Shortcut for tool selection on the right-han right-hand d wall.

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February 2007


Field Installed Kits Auxiliary hydraulic kits distributed through Cat Work Tools have been redesigned to mirror factory-installed options, including the Tool Control System. This also includes upgradeable kits, which can upgrade your hammer to the Tool Control System.

More Attachments The 320D offers the most options available to equip your 320D to best match your customer’s application and work environment requirements. From track shoe size to guarding packages to operator comfort options, the 320D offers more options than any of its competitors. New for the 320D is the available of factory installed Machine Security System and Product Link.

Machine Security System Controls when the machine can be operated and uses specific keys to prevent unauthorized machine use, a significant theft deterrent. You can also program the hours that the machine can be operated.

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Product Link Both the PL121 and PL321 are available as factory installed attachments. PL121 gives you Asset Watch, Watch, which includes the following features: • En Engi gine ne hou hours rs • Mac Machin hinee locati location on • Ti Time me based based fences fences (when (when the machin machines es can ope operate rate)) • Geo-bas Geo-based ed fences (boundarie (boundariess that the machine machine can can operate) P321 gives you all of the features listed for PL121, plus the ability to include Health and Maintenance Watch. – Health Watch: • Cod Codes es from on-boa on-board rd ECM/Sens ECM/Sensors ors • Esti Estimate mated d fuel consu consumpti mption on • Fu Fuel el le leve vell – Maintenance Watch: • Prev Preventativ entativee maintenanc maintenancee planning planning • Prev Preventativ entativee maintenance maintenance Checklis Checklists ts • Ove Overdue rdue PM notif notificat ication ion • PM hist history ory reco recordin rding g

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February 2007

What’s New – Lower Owning and Operating Costs

Extended Maintenance Interval Due to better filtration, the service interval for the hydraulic return filter has been extended from 1,000 to 2,000 hours. All other maintenance intervals remain the same as found on the 320C.

ACERT Technology This technology utilizes many proven components. Testing on competitive solutions has shown that ACERT Technology shows less internal wear by not introducing exhaust gas into the combustion chamber, which has shown to build up soot, leading to increased iron wear. The bottom line benefit to the customer is that ACERT ACER T Technology, Technology, in most instances, in stances, will lead to lower overall owning and operating opera ting costs as compared c ompared to some of the competitive emission solutions.

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What’s New – Lower Owning and Operating Costs

Economy Mode Economy Mode allows you to balance the demands of performance and fuel economy. It offers the best fuel economy while maintaining the breakout forces and lift capacity enjoyed while in standard power. Economy Mode is accessible through the monitor via the Settings Menu. Economy Mode will remain enabled until the function is turned off.

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February 2007

What’s New – More Operator Comfort

Improved Layout The 320D features a redesigned cab, now common with the 324-330D. The frequently used switches have been relocated to the right front wall where access is more convenient and allows the operator to focus on the task at hand.

Improved Ventilation Ventilation has been improved from the 320C by placing the air duct near the monitor higher to allow more airflow to the face of the operator. The airflow from behind the operator now includes circular air vents that allow the operator to maneuver the flow of air to meet their needs.

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New Monitor The 320D features a new monitor, also common with the 324D-385, which enhances the functionality that was brought with the 320C. The main screen of the monitor displays the following information: – Gauges • Fu Fuel el le leve vell • Hyd Hydraul raulic ic oil temperatu temperature re level level • Engine oil coolant coolant temperature temperature lev level el – Time – Engine dial speed – Event display area

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February 2007


Main Menu Four menu options: • Settings – Adjust monitor monitor settings, select work work tool or choose video mode when when equipped with a camera. camera. • Maintenan Maintenance ce – Displays service service intervals and hours hours accumulated accumulated since last serviced. serviced. • Performance Performance – Displays machine performance performance attributes attributes such as Engine Speed, Coolant and Hydraulic Hydraulic Oil Temperature. • Service – Allows Allows access to machine parameters parameters for service intervals, intervals, diagnostic information, information, and information related to the machine’s software.

Language Capability To meet the growing needs of a diverse workforce, the monitor on the 320D has the capability of displaying one of 27 different languages. This allows operators to understand the display of the machine in their language, increasing the likelihood that they will understand the messages and take the recommended action.

More Seat Options The 320D has two seat options. The mechanical suspension seat offers good comfort and adjustability. The new air suspension seat includes a seat heater and provides a new level of comfort, keeping the operator comfortable all shift long.

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More Effective Seating Area Consoles on the 320D have been repositioned to maximize the effective seating area, keeping the operator more comfortable.

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February 2007

What’s New – Better Serviceability

Improved Ground Level Access The engine oil filter on the 320D is now now accessible at ground level via the pump compartment compartment on the right side of the machine. The 320C engine oil filter was accessible through the upper frame engine compartment.

Anti-Skid Plating The anti-skid plating on the D Series has been enhanced to reduce slipping and easier to clean. The former series anti-skid plating pla ting had holes that allowed debris to fall into i nto the compartment below. The new anti-skid plating is also easier on technicians’ knees and hands.

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What’s New – New Styling

The 320D has been updated to the new Power Edge™ Trade Dress.

Black cylinders (Boom/Stick/Bucket) Redesigned Shark Fin

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February 2007

Competitive Situation

Product Specification Comparison Cat Cat Komatsu Deere Volvo 320C L 320D L PC200LC-8 200C LC EC210B LC Engine Engine Model

Flywheel Power

Operating Weight Hydraulic System Maximum Flow (2x) Max. Pressure – Implements Heavy Lift/ Pressure Boost Drive Max. Drawbar Pull

Cat 3066 T

C6.4 with Komatsu Deere ACERT SAA6D107E-1 6068H Technology 103 110 106 138 148 141 21 482 21 482 20 968 47,260 47,260 46,130

kW hp kg lb

103 138 21 045 46,300

L/min gal/min kPa psi kPa psi

205 54.2 34 300 4,980 N/A N/A

205 54.2 35 000 5,076 36 000 5,220

214 56.5 37 230* 5,400* 37 230 5,400

kN lb

202 45,411

206 46,310

178 40,120

Link Belt 210LX

Kobelco SK210LC

Volvo Isuzu Mitsubishi D6D EA EAE2 BB-6BG1T 6D34-TEB 107 143 21 609 47,540

103 138 20 364 44,800

110 148 21 364 47,000

219 57.9 34 300 4,980 36 300 5,270

201 53 32 300 4,690 34 300 4,980

201 53.1 34 300 4,970 37 300 5,410

210 55.5 34 300 4,980 37 700 5,470

189 42,420

183 41,230

183 41,230

199 44,700

*Standard pressures not given, power boost is active.

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C6.4 with ACERT ™ Technology C6.4 with ACERT™ ACERT ™ Technology. Technology. ACERT™ Technology works at the point of combustion to optimize engine performance and provide low exhaust exhaust emissions to meet emission regulations, regulations, with exceptional performance capabilities and proven reliability. reliability.

Air Cleaner Clean er.. The radial seal air filter features double-layered filter core for more efficient filtration and is located in a compartment the cab. A warning is displayed on the monitor when the electric dust indicator determines the accumulation of dust is above a preset. Also available is an optional air pre-cleaner, which is installed to the main air filter.

Low Sound, Low Vibration. The engine is Cat C6.4. The Cat C6.4 engine is a six-cylinder turbocharged and aftercooled engine with 103 kW (138 hp) net power. This engine has excellent fuel consumption compared to other diesel engines in its class. It features improved thermal efficiency and reduced friction resistance between the piston and liners. The engine also features long-stroke piston movement for high torque at medium to low speeds that provides excellent productivity in tough applications. applications. The C6.4 C6.4 engine has a displacement of 6.37 L (389 in 3), which is the same displacement as the 3066 TA engine on the pre previou viouss mod model. el. The C6.4 uses new materials and technologies to improve reliability. The engine has been subjected to extensive testing to ensure that its structure and components meet stringent Cat durability standards.

Automatic Engine Speed Control. Automatic Engine Control with convenient one-touch command. During no- or light-load conditions, the Automatic Engine Speed reduces engine speed. This maximizes fuel efficiency and reduces sound levels.

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mounted to the main frame frame with four rubber rubber mounts. These mounts reduce the sound level and vibration that that is transferred transferred from the engine engine to the main main frame. frame.

Common Rail Fuel System. The C6.4 engine on the system features the Common Rail System (CRS). The fuel from the high-pressure fuel pump is sent to the fuel gallery that is called “Common Rail”. The ADEM™ ADEM™ A4 controller controller precisely controls the fuel pressure. It also electronically controls fuel injection timing continuous fuel flow cools the ADEM ADEM controller before before going to the transfer transfer pump. pump.

Easy Maintenance. The oil level gauge, secondary fuel filter, third fuel filter and priming pump are located in the engine engine compartment compartment and are accessible from the upper deck for easy maintenance. On the 320D, the replacement intervals of the engine oil filter and secondary fuel filter are 500 hours. hours. The replacement replacement interval for the third fuel filter, which is new for the 320D, is 1,500 hours.


February 2007

C6.4 with ACERT ™ Technology

Cooling System. The side-by-side placement of Water Separator. Separator. A fuel system water separator, located in the radiator compartment, is standard on the 320D. The water separator, which includes a sight gauge, removes water that comes from condensation or poor quality fuel in the fuel system. An optional water separator with a water level sensor is available. When the water level is too high, a warning warning light is displayed displayed on the monitorin monitoring g system.

Oil Pump. The compact, lightweight, high

the radiator and oil cooler makes core cleaning easy. The aftercooler is located in front of the radiator/oil cooler. The condenser for the air conditioning system is mounted in front of the radiator/oil cooler and under the aftercooler. A radiator screen screen is provided provided between the the radiator/oil cooler and aftercooler to prevent plugging by debris. In addition, there is wider clearance between the radiator/oil cooler and aftercooler, so debris can be easily blown off by the wand, or air nozzle. nozzle. A cooling cooling fan is connected directly to the engine.

efficiency engine oil pump is built into the right side of the cylinder block, which features an oil passage for lubricating oil and eliminates the lubricating tube inside the engine. The oil filter is positione positioned d with the open side side down. The The oil element has its own relief valve, and a bypass filter is combined with this element to extend oill li oi life fe..

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Hydraulics Hydraulics. The hydraulic system has been designed to provide reliability and outstanding controllability.

The pilot control valve block on the 320D hydraulic system is located beneath the main control valve, allowing the assembly of essential hydraulic parts and making use of empty space in the upper framee layo fram layout. ut.

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 uses each of two hydraulic pumps to 100% of engine power, under all operating conditions. This improves productivity with faster implement speeds and quicker, stronger pivot turns. For example, during bucket-only operations, hydraulic oil is supplied from only one hydraulic pump. In this situation, the cross sensing system is used to double the the flow volume, volume, using using full engine power power..

Component Layout. The 320D hydraulic system and component locations have been designed to provide a high level of system efficiency. efficiency. The main pumps, control valves and hydraulic tank are located close together to allow 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. structure. This allows allows incoming incoming air to enter the engine engine compartment compartment from the operator operator side and hot air and corresponding engine sound to exit on the opposite side away from the operator, which reduces engine compartment heat and sound being transmitted to the operator.

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Hydraulic Pumps. The main pumps are located side-by-side and driven directly from the engine. A separated pump drive is not required to transfer engine power to the pumps, so transmission efficiency does not decrease. The pump is SBS120 variable-displacement swash plate piston pump. The pumps are controlled independently. The 320D hydraulic hydraulic pumps have have a flow control system that reduces flow to minimum when joysticks joystic ks and travel travel controls controls are in the the neutral position. This reduces fuel consumption and sound levels and extends component life.


February 2007

Operator Comfort Operator Comfort. 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 information easily. Overall, the new cab provides a comfortable environment environment for the operator. operator.

Operator Station. The workstation is spacious, quiet and comfortable, ensuring high productivity during a long workday. The air conditioner and attachment switches are conveniently located on the right-hand right-hand wall, and the the key switch switch and throttle dial are on the right-hand console.

Monitor. The monitor is a full-color 400 x 234 pixels Liquid Crystal Display (LCD) graphic display. The monitor angle can be adjusted to minimize glare and has the capability of displaying information in 27 different languages. The Master Caution Lamp blinks ON and OFF when one of the critical conditions below occurs: • Eng Engine ine oil oil pressu pressure re low low • Coo Coolant lant tempe temperatu rature re high high • Hyd Hydraul raulic ic oil temperat temperature ure high high Under normal conditions or the default condition, the monitor display screen is divided into four areas: clock and throttle dial, gage, event display, and multi-information display.

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Operator Comfort

Standard Cab Equipment. To enhance operator comfort and productivity, the cab includes a lighter, drink holder, coat hook, service meter, literature holder, magazine rack and storage compartment.

Joystick Control. Joystick controls have low lever effort and are designed to match the operator’s natural wrist and arm position. The operator can operate joystick controls with an arm on the armrest and the horizontal and vertical strokes have been designed to reduce operator fatigue.

Automatic Climate Control. Positive filtered ventilation with a pressurized cab is standard. Fresh air or recirculated air can be selected with a switch on on the left left console. console.

Hydraulic Activation Control Lever. L ever. For added safety, this lever must be in the operate position to activ activate ate the machine control control functions. When in the locked position, the hydraulic activation control lever cuts the pilot pressure for the control levers levers and the power power circuit for an engine starting in the locked position. In addition to deactivate the control and travel levers, the hydraulic activation lever prevents the engine from starting.

Console. Redesigned consoles feature a simple, functional design to reduce operator fatigue, ease of switch operation and excellent excellent visibility. visibility. Both consoles have attached armrests with height adjustments.

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February 2007

Operator Comfort

Cab Exterior E xterior.. 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 requirement requirements. s.

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. For excellent visibility, all glass is affixed directly to the cab, 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 intermitt intermittent ent modes.

Skylight. An enlarged skylight with sunshade provides excellent visibility and excellent ventilation. The transparent, polycarbonate skylight delivers excellent upward visibility, natural lighting and good ventilation. The gas cylinder holds the skylight in either the open or closed position. position. A sliding sunshade sunshade blocks blocks direct dire ct sunl sunlight ight..

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Operator Comfort

Rear Window. The tempered-glass rear window is detachable for emergency exit. It can be removed by pulling out the rubber seal. An optional rear window with an external opening provision is offered as attachment.

Wipers. Pillar-mounted wipers increase the operator’s viewing area and offer continuous and intermittent modes. A lower windshield wiper is also available as an optional attachment.

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Third Pedal Straight Travel (Optional). In addition to left and right travel pedals, a single pedal for straight travel is available as an attachment on the 320D. This pedal moves moves the excavator excavator during excavation, allowing a single pedal to control straight forward and reverse travel. The travel advance pedal is located to the right of the standard travel pedals. The left and right travel pedals have priority, so movement will be to the left or right if these pedals are pressed at the same time as the travel advance pedal.


February 2007

Structures Structures. Caterpillar design and manufacturing techniques assure outstanding durability and service life from these important components.

Rollers and Idlers. Sealed and lubricated track rollers, carrier rollers and idlers provide excellent service life, to keep the machine in the field longer.

Hydraulic Tank. The hydraulic tank is mounted on

Robotic Welding. Robotic welds achieve more than three times the penetration penetration of manual manual welds.

the right side of the upper frame. The tank capacity is 211 liters (57.7 gal) and the plate thickness is 6 mm (0.24 in). The The tank exterior uses independent side cover, or decorative panels, to keep welds out of sight and to harmonize the whole exterior image. The fill point is located on top of the tank, and a sight gauge is located at the side of the tank for easy viewing of the hydraulic level. The return filter, or capsule filter, is mounted to the rear bulkhead of the hydraulic tank. A drain plug is located below the tank for easy and clean maintenance.

Fuel Tank. The fuel tank, which is covered with an Carbody Design and Track Roller Frames.

independent panel, is situated on the right side of the upper frame.

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.

The tank’s capacity is 410 liter (108 gal), allowing continuous work up to 14 hours with 85% load between refills.

Main Frame. Rugged main frame is designed for

The tank is made of 5 mm (0.2 in) steel plate. The fill point is located located on top of the tank. tank.

maximum durability and efficient use of materials.

Track Links. L inks. Grease is injected between the track link pin and the bushing, held in by a resin seal. This helps reduce internal wear thereby extending the life of the track.

A sight gauge is no longer provided on the fuel tank. A new fuel strainer that integrates the function of the side gauge indicates the fuel level lev el on the monitor monitor.. A remote drain valve is installed in the pump compartment for easy sediment and water removal and cleaning. A shutoff valve to the supply line prevents fuel leakage when servicing.

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Structures

Doors and Covers. Upper structure side panels are made of 1.6 mm (0.06 in) thick rolled steel plates. Side door edges are rounded off for a smooth, robust image. Service doors are reinforced and rigid in the open or closed position. Doors lock automatically when in the closed position, minimizing vibration. Noise absorbing material is attached directly directly to the inside inside of the door. door.

Counterweight. The pressed counterweight, which is 3870 kg (8,333 (8,333 lb), has a smooth, curved curved surface that matches the excavator’s overall sleek, smooth appearance. The counterweight is a fabricated structure using 3.0 mm (0.12 in) steel plates on the sides and at the bottom. The combination of thick steel plates and strong, reinforced counterweight fabrication makes the entire structure less susceptible to damage. A recessed area prevents scratches. To ensure rigidity, rigidity, the counterw counterweight eight is bolted directly to the main frame using four M30 bolts. Lifting hooks are provided on the counterweight.

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February 2007

Structures

Engine Hood. The engine hood is approximately 160 mm (6.30 in) from the upper deck and opens backward. A bar-spring reduces operator effort when opening the hood. All of the engine inspection points can be accessed from the upper deck.

Bottom Guards. The bottom of the upper structure is protected with a standard bottom guard. This bottom guard is 2.5 mm (0.10 in) thick. A thicker 6 mm (0.24 in) plate protects the suction hose. A hole under the engine engine allows allows easy access access to the engine oil drain drain cock. cock. An optional 6 mm (0.24 in) heavy-duty bottom guard package is available for applications that present greater risks to the lower panels, such as forestry and quarry.

Mirrors. The 320D has two shatterproof rearview mirrors. The right mirror is mounted on the fuel tank by retractable mirror stay, which allows the operator to clear the mirror overhang manually. The other mirror is connected to the left cab post.

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Booms, Sticks and Bucket Linkages Booms, Sticks and Bucket Linkages. Three lengths of booms and five five sticks are available, offering a range of configurations suitable for a wide variety of application conditions. The bucket linkage pins have been enlarged to improve reliability and durability.

R2.5B1 Stick • Stick provides provides an excellent excellent digging digging envelope envelope with larger bucket sizes and provides more stability than the R2.9B2 stick for hammer work.

Front Linkage Options. Three lengths of booms and six types of sticks are available, offering a range of configurations suitable for a wide variety of application conditions.

Booms. The booms have large cross-sections and internal baffle plates to provide long life durability.

Sticks. The sticks are made of high tensile strength steel using a large box section design with interior baffle plates and an additional bottom guard.

Reach Boom. The reach boom features an optimum design that maximizes digging envelopes with three stick choices: R3.9B1, R2.9B1 and R2.5B1 R2.5 B1 Stic Sticks. ks. • The B1-family B1-family bucket bucket associated associated with these these sticks have enough capacity for excellent reach and depth in trenching and general construction applications. R3.9B1 Stick • Stick is suited suited for use in in trenching, trenching, excavatio excavation, n, and other general construction work. It has been designed with enough reach and depth to match a large-capacity bucket and high digging force.

Special Application Reach Boom. Provides additional strength recommended for tough applications. R2.9B1 and R2.5B1 Special Application Sticks • The R2.9B1 R2.9B1 and R2.5B1 R2.5B1 SA Sticks Sticks have have thicker plates and are stress relieved and are used for heavy-duty applications.

Mass Excavation Boom. The mass excavation boom maximizes productivity. The mass version offers significantly higher digging forces and allows use of larger buckets. M2.4CB2 Stick • The CB2 Stick Stick uses a C-famil C-family y bucket bucket and was was designed for high volume earth moving, powerful digging force and a large capacity bucket. Combined with a Mass boom, this stick delivers outstanding productivity.

Super Long Reach. Provides up to 15 m (50 ft) of reach. This configuration configuration is designed designed for light duty applications that require a large working envelope, such as ditch cleaning or sloping work.

R2.9B1 Stick • Stick provides provides the the most versatile versatile front linkage linkage with regard to reach and bucket capacity and delivers good stability for hammer work.

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February 2007

Work Tools Tools – Attachments Work Tools – Attachments. A variety of work tools, including buckets, couplers, hammers, and shears are available through Cat Work Tools.

Heavy-Duty Buckets. Heavy-duty (HD) buckets are used for a wide range of moderately abrasive applications such as mixed dirt, clay and rock. HD bucke buckets ts have best loading loading and dumping characteristics and will empty easier in cohesive material. More robust construction than the GP bu bucke ckets. ts.

Heavy-Duty Power (HDP) Buckets. For use in moderately abrasive applications where breakout force and cycle times are critical. Maximizes tip force and improves cycle times in most materials. Not for use in sticky material conditions. Cutting edge and GET GET are up-sized. up-sized.

Heavy-Duty Rock Buckets. Heavy-duty rock Service Life. Caterpillar ® buckets increase service life and reduce repair costs. • Dual radius radius designs designs for increased increased heel clearance clearance and reduced wear • Robot welding welding of hinge assembly assembly for for increased increased weld penetration and longer life • High-strength High-strength and heat-treat heat-treated ed steel that exceeds exceeds T-1 in high wear areas • Horizontal Horizontal bottom wear plates plates reinforce reinforce bucket bucket for greater strength and rigidity as well as ease of replacement • Caterpillar Caterpillar adapters adapters are through through hardened hardened for for excellent durability and performance

General Purpose Buckets. General Purpose (GP) buckets are best for digging in soft to hard ground with low to moderate abrasive materials.

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for aggressi aggressive ve bucket bucket loading in highly abrasive abrasive application such as shot rock and granite. Features Feat ures incl include ude:: • Thickest Thickest wear plates plates to extend extend the life of bucket bucket in severe applications • Side wear wear plated extend further up the side side of the bucket for maximum protection in rocky soils • Buckets Buckets accept accept sidebar sidebar protectors protectors for for best sidebar protection, or sidecutters for best fill characteristics and bucket wear protection

Ditch Cleaning Bucket. For cleaning ditches, sloping, grading and other finishing work. • Shallow Shallow depth and and compact compact size make make working working in confined areas easier • Drainage holes allow allow liquid to empty so material material dumps more easily • Opt Optiona ionall bolt-on bolt-on cutting cutting edge edge


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Work Tools Tools – Attachments

Couplers. Caterpillar offers two main coupler options for the 320D. • Hydraulic Pin Grabber Grabber Plus – picks up work work tools with standard pins, including a large variety of competitive buckets • Dedicated Couplers – No loss loss of tip radius, maximizes breakout forces

Cat Work Tools. Caterpillar offers a complete line of work tools to match all of your application needs.

Hammers. Matched to Cat machines for optimum performance.

Grapples. Choose from large variety of grapples that best suit your application.

Multi-Processors. A multi-processor does the work of many types of demolition tools by use of interchangeable jaws.

Shears. Shears feature feature 360° rotation and and high force to weight ratio.

Pulverizers. Pulverizers are ideally suited for rapid, non-explosive demolition applications.

Thumbs. Stiff link and full rotation thumbs transform your 320D into a versatile materialhandling machine.

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February 2007

Work Tools Tools – Attachments

Vibratory Plate Compactors. Compactors provide superior compaction force in a reliable, lowmaintenance package.

Rippers. Rippers are perfectly suited for trenching and pipeline applications where conditions aren’t favorable to traditional ripping methods.

Operator Guarding Packages. Caterpillar offers a variety of of guarding packages packages to protect protect the operator from flying or falling debris: • Full Lengt Length h Wire Wire Mesh Mesh Screen Screen • Fal Falling ling Object Object Guardi Guarding ng System System

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Service and Maintenance Service and Maintenance. Fast, easy service has been designed in with extended service intervals, advanced filtration, convenient filter filter access and user-friendly electronic diagnostics for increased productivity and reduced reduced maintenance costs.

T-tap points on the pump make hydraulic system adjustment easier. Hydraulic oil level can be checked from the pump compartment.

Radiator Compartment. The left rear service door allows easy access to the engine radiator, oil cooler and air-to-air-after-cooler. A reserve tank and drain cock are attached to the radiator for simplified maintenance.

Ground Level Service. The design and layout of the 320D was made with the service technician in mind. Many service locations are easily accessible at ground level allowing critical maintenance to get done quickly and efficiently.

In the radiator compartment, which is accessible from ground level, there is room for the shift pattern changer and the grease gun holder. A wire mesh screen is provided between the aftercooler and radiator/oil cooler, where there is a wide enough enough clearance to blow blow off off debris debris using a wand.

For example, service doors are situated on both sides of the upper upper structure, which which allows allows maintenance items, such as the engine radiator or any hydraulic components, to be reachable from ground level. Openings are large and service doors latch in the full open position.

Air Filter Compartment. The air filter features a double-element construction for superior cleaning efficiency. When the air cleaner plugs, a warning is displayed on the monitor screen inside the cab. The air filter, the access point for the washer tank, and maintenance points for electric components, such as the battery, circuit breaker and controller, are positioned behind the cab, in the air cleaner compartment. The jump-start receptacle, which is an attachment, attachment, is near the battery battery..

Pump Compartment. A service door on the right side of the upper structure allows ground-level access to the pump, pilot filter, case drain filter and engine oil filter. 38

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Greasing Points. A concentrated remote greasing block on the boom delivers grease to hard-to reach locations on the front. For example, the remote grease block allows the swing bearing to be greased from two points of the boom foot: one for the front half of the swing bearing, and the other for the back half.


February 2007

Service and Maintenance

Greasing the front linkage can be accomplished at two positions: positions: transport transport position and stick stick vertical position.

Capsule Filter F ilter.. The hydraulic return filter, a capsule filter, prevents contaminants from entering the system when hydraulic oil is changed and keeps the operation clean. The capsule filter unit is situated inside the pump compartment, and the filter is changed from the top service platform. If the filter clogs, a warning is displayed on the monitor screen inside the cab.

Diagnostics and Monitoring. The 320D is equipped with S•O•S SM sampling ports and hydraulic test ports for the hydraulic system, engine oil, and for coolant. A test connection for the Cat Electronic Technician (Cat ET) service tool is located inside the cab, behind the right hand side of the seat.

Fan Guard. Engine radiator fan is completely enclosed by fine wire mesh, reducing the risk of an acci acciden dent. t.

Handrails and Steps. Larger handrails allow easier climbing up on and down from the machine. The handrail has has 850 mm (33.5 in) height height from the steps that meets the requirement of the ISO2867. The track frame and storage box have large steps for climbing. The track frame step is designed to adapt an additional step for the optional 800 mm (32 in) shoe.

Pre-Start Monitoring System. A pre-start monitoring system allows the operator to check coolant, hydraulic oil and engine oil levels from the monitor inside the cab. However, the pre-start monitoring system does not cover all daily maintenance items. Caterpillar recommends the operator to also check these levels manually.

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Technical Specifications Engine

32 0C L

320D L

Engine Model ISO 9249 SAE J1349 EEC 80/1269 Bore Stroke Displacement

Cat 3066 TA 103 (138) 103 (138) 103 (138) 102 mm (4.02) 130 mm (5.12) 6.37 (389)

C6.4 with ACERT Technology 103 (138) 103 (138) 103 (138) 102 mm (4.02) 130 mm (5.12) 6.37 (389)

320C L

320D L

19 700 (43,400) 21 000 (46,300)

20 330 (44,820) 21 482 (47,260)

320C L

320D L

400 (106) 30 (7.9) 30 (7.9) 8 (2.1) 10 (2.6) 200 (53) 120 (32)

410 (108) 25 (6.6) 30 (7.9) 8 (2.1) 8 (2.1) 260 (69) 120 (32)

320C L

320D L

205 (54.2) 34.3 (4974) N/A 41.0 (10.8) 4.12 (600) 120 (5.0) 1260 (52) 140 (5.5) 1430 (56) 140 (5.5) 1504 (59.2) 120 (5.0) 1030 (41.0) 130 (5.0) 1150 (46.0)

205 (54.2) 35.0 (5,076) 36.0 (5,220) 32.4 (8.6) 3.90 (566) 120 (5.0) 1260 (52) 140 (5.5) 1518 (59.8) 140 (5.5) 1504 (59.2) 120 (5.0) 1104 (43.5) 135 (5.3) 1156 (45.5)

kW (hp) kW (hp) kW (hp) mm (in) mm (in) L (in3)

Weights Operating Weight – Standard Undercarriage Operating Weight – Long Undercarriage

kg (lb) kg (lb)

Service Refill Capacities Fuel Tank Capacity Cooling System Engine Oil Swing Drive Final Drive (each) Hydraulic System (inc. tank) Hydraulic Tank

L (gal) L (gal) L (gal) L (gal) L (gal) L (gal) L (gal)

Hydraulic System Main Implement System – Maximum Flow (2x) Maximum Pressure – Implements Heavy Lift Pressure Pilot System – Maximum Flow Pilot System – Maximum Pressure Boom Cylinder – Bore Boom Cylinder – Stroke Stick Cylinder – Bore Stick Cylinder – Stroke Mass Stick Cylinder – Bore Mass Stick Cylinder – Stroke B/B1 Family Bucket Cylinder – Bore B/B1 Family Bucket Cylinder – Stroke C/CB2 Family Bucket Cylinder – Stroke C/CB2 Family Bucket Cylinder – Stroke

L/min (gal/min) MPa (psi) MPa (psi) L/min (gal/min) MPa (psi) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)

Drive

320C L

Maximum Travel Speed Maximum Drawbar Pull

kph (mph) kN (lb)

Swing Mechanism Swing Speed Swing Torque

40

rpm kN-m (lb-ft)

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320D L

5.5 (3.4) 202 (45,411)

5.5 (3.4) 206 (46,310)

320C L

320D L

11.5 61.8 (45,611)

11.5 61.8 (45,611)


February 2007

Notes

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Notes

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Notes

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The information contained herein is intended for circulation only to Caterpillar and dealer employees whose duties require knowledge of such reports and is intended exclusively for their informatio informationn and training. It may contain unverified analysis and facts observed by various Caterpillar or dealer employees. However, effort has been made to provide reliable results regarding any information comparing Caterpillar built and competitive machines. Effort has been made to use the latest available spec sheet and other material in the full understanding that these are subject to change without notice. Any reproduction of this release without the foregoing explanation is prohibited. CAT, CATERPILLAR, their respective logos, “Caterpillar Yellow” and the POWER EDGE trade dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

TEJB9306 February 2007 www.cat.com © 2007 Caterpillar All Rights Reserved Printed in the U.S.A.

®

320C vs 320D

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