Specalog for 308C CR Hydraulic Excavator, AEHQ5469 Mitsubishi 4M40-E1 engine delivers power and...

®®

EngineEngine Model 4M40E1Gross Power 41 kW 55 hpFlywheel Power 41 kW 54 hp

DriveMax. Drawbar Pull 57 kN 12,810 lb

WeightsOperating Weight 8040 kg 17,730 lb

• Equipped with 2470 mm (8'1") blade, one-piece boom,2210 mm (7'3") stick, 600 mm (24") shoes, and 600 mm(24") bucket.

308C CRHydraulic Excavator

2

308C CR Hydraulic ExcavatorThe 308C CR offers a compact radius and improved performance, versatility and styling.

Increased horsepower, better controllability,extended service intervals and a redesignedoperator station increase your productivityand lower your operating costs.

Serviceability

Longer service intervals and easiermaintenance result in better machineavailability and lower owning andoperating costs. pg. 11

Hydraulics

The open-center, two-pump hydraulicsystem provides high efficiency andreliability. The machine’s pump flowcontrol improves fuel efficiency, ensuressmooth control, reduces sound levelsand extends component life. pg. 6

Engine

The Mitsubishi 4M40-E1 engine deliverspower and performance along withoutstanding fuel efficiency and lowsound levels. All engine componentsare designed for maximum wearresistance and durability. pg. 5

Compact Radius

The 308C CR features a compact radius,making it ideal for working in urbanconstruction where space is oftenrestricted. pg. 4

✔

✔ New Feature

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Complete Customer Support

Your Cat dealer offers a wide rangeof services that can be set up under acustomer support agreement when youpurchase your equipment. The dealer willhelp you choose a plan that can covereverything from machine configurationto eventual replacement. pg. 12

Operator Station

An enlarged cab and new window designenhance visibility and operator comfort.The sliding door system allows easyoperator access, even in tight quarters.All operator controls are designed forsmooth, low-effort operation and easyreach. pg. 10

Undercarriage and Blade

Rugged Cat® undercarriage designand proven structural manufacturingtechniques ensure outstanding durabilityin the toughest conditions. Blades featurereplaceable and reversible cutting edgesfor long service life and reliability. pg. 8

Front Linkage

Front linkage variations allow the useof one boom, two sticks and four bucketsizes for maximum productivity on awide range of jobs. pg. 7

Dimensions

Compact Radius Design. The 308C CRis a compact radius version of the 307C.It is designed to work in a 2850 mm(9 ft 8 in) wide area.

Shorter Tail Swing Radius. A shortertail swing radius makes the 308C CReasier to operate against walls and inother tight areas, reducing the risk ofdamage to the rear of the machineduring operation.

Flexibility in Tight Quarters. The shortertail measurement allows the excavator towork productively in urban construction,on logging roads and other space-restricted sites.

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Compact RadiusCompact radius design delivers top performance in tight quarters.

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1) Front Swing From Center

1665 mm (5 ft 6 in) stick - 1660 mm (5 ft 5 in)

2210 mm (7 ft 3 in) stick - 2180 mm (7 ft 2 in)

2) Rear Swing From Center

1290 mm (4 ft 3 in)

3) Overhang

450 mm (18 in) shoes - 130 mm (5 in)

600 mm (24 in) shoes - 55 mm (2 in)

4) Width

1665 mm (5 ft 6 in) Stick - 2950 mm (9 ft 8 in)

2210 mm (7 ft 3 in) Stick - 3470 mm (11 ft 5 in)

4M40-E1 Engine. The Mitsubishi 4M40-E1engine was developed specifically forconstruction equipment. It featuresa long-stroke piston movement forhigh torque at medium to low speeds,excellent fuel efficiency and lowsound levels and vibration.

Low Fuel Consumption. The engine offerslow fuel consumption, improved thermalefficiency and reduced resistance betweenpistons and liners.

Cylinder Block and Head. The cylinderblock is made of cast iron for improvedwear resistance. The upper part is laser-hardened to reduce oil consumption,increase wear resistance and minimizepiston ring scuffing. Aluminum alloycylinder heads incorporate waterdirectors to ensure efficient cooling.

Pistons and Rings. Heat-resistantaluminum cast alloy pistons featureclearance control struts. A shortcompression height results in highcombustion efficiency and reducedweight. The piston ring set consistsof three rings, treated for maximumwear resistance.

Crankshaft and Connecting Rod.The surface of the crankshaft journalsand pins are induction-hardened toensure high reliability. The forgedconnecting rods are made of a high-tensile strength steel alloy.

Cooling System. A large-diameter fanand full-length, water-cooled cylinders,combined with excellent thermalefficiency, help prevent overheating.The result is longer engine life and theability to operate at high temperaturesand under heavy loads. A mixed flowfan design provides high coolingefficiency. The core radiator is equippedwith waved fins to prevent clogging.

Lubrication System. The system utilizesan external gear-type, high-efficiency oilpump. The large oil filter is composedof a main filter and a bypass filter,designed for high performance.

Starting System. The standard 308C CRhas a 3.2 kW capacity starting motor,mounted at the right of the engine,and two Cat 100-AH capacity batteries.In this configuration, the machine can bestarted at -32ºC (-25ºF) with glow plugs.

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EngineThe four-cylinder engine is built for power, reliability, economy and low emissions.

Precise Control. Hydraulics deliversmooth changes in speed and outstandingoverall control.

Pilot System. Increased pilot hydraulicpressure provides better control to thefront linkage, swing and travel operations.

Component Layout. The 308C CRhydraulic system was designed to providea high level of efficiency. With all majorcomponents located close together,shorter tubes and lines are needed,resulting in less friction loss in thelines and reduced pressure drops.

Hydraulic Cross-Sensing System.The system utilizes each of the mainhydraulic pumps to 100 percent of enginepower under all operating conditions,resulting in faster implement speedsand pivot turns.

Flow Control System. Pump flowdecreases when controls are in neutralfor reduced fuel consumption andsound levels.

Stick Regeneration Circuit. Saves energywhile the stick is in use, providing shortercycle times and lower operating costs.

Boom Drift Reducing Valve. This valvereduces the natural drift of the boom,so lifted material will remain suspendedfor long periods with virtually no drift.

Auxiliary Hydraulic Valve. The auxiliaryhydraulic valve is standard on the308C CR for use with optionalhydraulic circuits.

Stackable Valves. One stackable valvecan be used in combination with themain control valve, allowing additionaltools to be added.

Auxiliary Hydraulic Arrangements. Formaximum flexibility, three arrangementsare available on the 308C CR: singlefunction for a dedicated hammer, doublefunction for a thumb or a combinedfunction circuit.

Hydraulic Cylinder Snubbers. Snubbersare located at the rod-end of the boomcylinders and both ends of the stickcylinders to cushion shocks whilereducing sound levels and extendingcylinder life.

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HydraulicsHydraulics deliver power and precise control to keep material moving at high volume.

Front Linkage Attachments. Allows theuse of one boom, two sticks and fourbuckets. Using these combinationsmakes the excavator productive in awide range of applications.

One-Piece Boom. The one-piece boomfeatures a fabricated box-section design.Robotic welding and high-tensilestrength steel on upper, lower andside plates provide high durabilityand consistency.

Sticks. Two stick attachments areavailable: a long stick to maximizereach or a medium stick for the mostversatile front linkage. Both sticks usea box-section design made of hightensile-strength steel and a buffer plate.

Linkage Bearings. A self-lubricated,sintered bearing greatly extends thegreasing interval on front linkage pinsby reducing pin friction. Greasingintervals on the bucket swing pinconnection are also extended usinga mesh bearing design.

Linkage Pins. Linkage pins are used withhigh-stress parts such as at the boomfoot and boom cylinders. They featurea thick chrome finish to maximizedurability. The 308C CR pin diametersare the same as on the 307C, except forboom cylinder-frame pin size.

Buckets. High-tensile-strength steel isused in high-stress areas for excellentwear and shock resistance. The sideplates are tapered to prevent contact ofthe bucket sidewalls during trenchingoperations. All four bucket sizes havea general-purpose design and share acommon side profile.

Bucket-Flop Adjustment Mechanism.Allows the operator or service personto reduce the side play at the bucket tostick-nose connection. This attachmentis only available when Cat buckets areordered.

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Front LinkageDesigned for maximum flexibility to keep productivity high on all jobs.

Undercarriage Design. The 308C CRuses a standard undercarriage with thesame basic design as the 307C, ensuringhigh reliability.

Grease-Lubricated Track. Grease-lubricated seals protect the track linkand provide longer wear life by helpingto keep dirt and debris from enteringthe pin and bushing joint.

Roller Lubrication. All rollers, sprocketsand idler joints are closed with floatingseals. Lubricating oil from the sealsprevents water and dirt from entering.The seals also make lubricationmaintenance-free.

Master Pin. The standard master pin isthe split-pin type, which makes trackattachment and removal easier.

Carbody and Track Roller Frame.X-shaped, box-section carbody provideshigh rigidity and excellent resistanceto torsional bending. The track frame ismade from a press-formed pentagonalsection for maximum strength and longservice life. The carbody and track rollerframes use robotic welding to ensurecontinuous, high-quality welds. Longwelds contribute to smoother transitionof loads and increased durability.

Travel Motors. Automatic speed selectionenables the machine to automaticallyshift up and down from high and lowspeeds in a smooth, controlled manner.An “anti-hunt” feature eliminates thehunting often associated with autoshifting when operating near theshift point.

Travel Motor Routing. The travel motorsare routed along the rear of the carbody,protecting the lines from damage.

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Durable undercarriage absorbs stresses and provides excellent stability.

Undercarriage and Blade

Travel Brake Valves. An improvedcounterbalance valve eliminates suddenstarts and stops during travel. A cross-over relief valve helps reduce shocksduring acceleration and deceleration anddecreases wear on the travel motors.

Idler Guard. An idler guard is integralto the track roller frame. This standardguard helps maintain track alignmentwhile traveling or working on slopes.

Triple Grouser Shoes with Rubber Pads.The 308C CR standard shoe has fourextra holes for installation of steel-backed rubber street pads. Optionalrubber pads are attached to the trackshoes, eliminating potential damage topaved road surfaces. (Pads are installedby your local Caterpillar® dealer or canbe purchased through the dealer forlater installation.)

Segment-type Rubber Track. Optionalsegment-type rubber track preventsdamage to concrete and other roadsurfaces, especially in urban areas.

Blades. Two blade widths are availableas attachments. The bolt-on cuttingedge consists of three pieces, which canbe reused by turning them upside down.Replaceable bolt-on edges protect theblade from damage and wear. Meshbearings in the pin joints of the bladecylinder extend the greasing interval.

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Cab Design. An enlarged cab with curvedstyling gives the operator a comfortable,spacious working environment andimproved visibility.

Seat. The low-back seat slides forwardand backward independent of theconsoles, so it can be adjusted tothe operator’s comfort level.

Sliding Door. The cab door slidesalongside the cab and takes less spaceto open and close than a hinged door.This unique design allows the operatorto easily get in and out of the cab whenworking against walls on job sites, evenwhen attachments are added.

Consoles. Redesigned consoles feature asimple, functional design. Both consoleshave attached adjustable armrests andslide forward and backward.

Monitor. The conveniently locatedcompact monitor displays instrumentpanel gauges and indicators in an easy-to-read and understand format.

Cab Mounts. The cab shell is attachedto the frame with viscous rubber cabmounts, which dampen vibrations andsound levels while enhancing operatorcomfort.

Travel Control Levers. The two travelcontrol levers have a reverse-L shape,making them easier to operate. Leverstroke and force have been adjustedto improve fine control and to preventjolting during machine impact.

Hydraulic Activation Control Lever.For added safety, this lever must be inthe locked position before the operatorcan leave the cab. This feature preventsthe machine from operating without theoperator in the cab.

Climate Control. Fully automatic climatecontrol adjusts temperature and flow.

Windows. Window glass is attacheddirectly to the window frame withadhesive to improve visibility. To protectthe operator from falling objects, theupper front window is made of laminatedglass. An enlarged skylight with sunshadeimproves overhead visibility.

Windshield. The front windshield canbe opened and closed using a one-touchaction release system and autolocksystem.

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Operator StationDesigned for simple, easy operation, the 308C CR allows the operator to focus on production.

Extended Service Intervals. Extendedservice and maintenance intervalsreduce service time and machineavailability. Use of oil-free bearingextends front linkage greasing intervalto 1,000 hours, except in bucket area.

Ground-Level Maintenance. For operatorconvenience, all daily maintenanceareas can be easily reached fromground level.

Fan Guard. Engine radiator fan iscompletely enclosed by fine wiremesh, reducing the risk of injury.

DT Electrical Connectors. Connectorsare water- and vibration-resistant,improving electrical system reliability.

Radiator and Pump Compartment.Opening the engine hood allows easyaccess to the engine radiator and the oilcooler. A reserve tank and drain cockare attached to the radiator to simplifymaintenance.

Air Filter. Cat radial seal providessuperior cleaning efficiency.

Engine Inspection. The engine can beaccessed from the upper structure orfrom under the machine. The enginehood incorporates a gas cylinder-assistmechanism, making the hood easy toopen. A steel wall separates the engineand pump compartments, preventinghydraulic oil from spraying on theengine in the event of a hydraulicline failure.

Engine Maintenance. To make dailyservicing easier, the oil level gauge, oilfilter, fuel filter and priming pump aregrouped on the left side of the engine.

Fuel Tank. A drain cock is installed atthe bottom of the tank, making it easierto remove water and sediment duringmaintenance.

Fuel-Water Separator. The waterseparator has a primary fuel filter elementand is located in the radiator compartmentfor easy access from the ground.

Storage Box. The storage box is locatedat the right front of the upper structureand can be locked. Tools and other repairequipment can be stored in this space.

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ServiceabilitySimplified service and maintenance save you time and money.

Selection. Make detailed comparisons ofthe machines you are considering beforeyou buy. What are the job requirements,machine attachments and operatinghours? What production is needed?What is the true cost of lost production?Your Cat dealer can give precise answersto these questions.

Purchase. Look past the initial price;look at the value the 308C CR offers.Consider the resale value and compareproductivity and day-to-day operatingcosts. Consult your local Cat dealer forfinancing options.

Operation. For the best operatingtechniques to increase productivityand your profit, turn to your Cat dealerfor the latest training literature andtrained staff.

Maintenance. Repair option programsguarantee the cost of repairs up front.Diagnostic programs such as ScheduledOil Sampling and Technical Analysishelp you avoid unscheduled repairs.

Replacement. Repair, rebuild or replace?Your Cat dealer can help you evaluatethe cost involved so you can make theright choice.

Product Support. You will find nearlyall parts at our dealer parts counter.Cat dealers utilize a worldwide computernetwork to find in-stock parts to minimizemachine downtime. You can save moneywith Cat remanufactured components.

Warranty. Your local Cat dealer is thereto support and protect you. Extendedwarranty options are also available.

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Complete Customer SupportCat dealer services help you operate longer with lower costs.

13308C CR Hydraulic Excavator specifications

Service Refill Capacities

Fuel Tank 115 L 30.4 galCooling System 15 L 4 galEngine Oil 10 L 2.6 galSwing Drive 1.5 L 0.4 galFinal Drive (Each) 1.3 L 0.34 galHydraulic System 92 L 24.3 gal(Including Tank)Hydraulic Tank 55 L 14.5 gal

Engine

Engine Model 4M40E1Gross Power 41 kW 55 hpFlywheel Power 41 kW 54 hpISO 9249 41 kW 54 hpSAE J1349 41 kW 54 hpEEC 80/1269 41 kW 54 hpBore 95 mm 3.7 inStroke 100 mm 4 inDisplacement 2.84 L 173 in3

Weights

Operating Weight 8040 kg 17,730 lb

• Equipped with 2470 mm (8'1") blade, one-piece boom,2210 mm (7'3") stick, 600 mm (24") shoes, and 600 mm (24")bucket.

Swing Mechanism

Swing Torque 16 000 N•m 11,800 lb ftSwing Speed 11.5 RPM

Drive

Max. Drawbar Pull 57 kN 12,810 lbTravel Speed 5.3 kph 3.3 mph

Hydraulic System

Main Implement System - 64 L/min 17 gal/minMax. Flow (2x)Max. Pressure - Implements 27 460 kPa 3,980 psiMax. Pressure - Travel 31 380 kPa 4,550 psiMax Pressure - Swing 24 030 kPa 3,480 psiPilot System - Max. Flow 18.7 L/min 4.9 gal/minPilot System - Max. Pressure 4120 kPa 597 psiBlade - Max. Flow 34 L/min 9 gal/minBlade System - Max Pressure 20 600 kPa 2,990 psiBoom Cylinder - Bore 110 mm 4 inBoom Cylinder - Stroke 985 mm 38.8 inStick Cylinder - Bore 90 mm 3.5 inStick Cylinder - Stroke 932 mm 36.7 inBucket Cylinder - Bore 80 mm 3.1 inBucket Cylinder - Stroke 742 mm 29.2 in

14 308C CR Hydraulic Excavator specifications

DimensionsAll dimensions are approximate.

Boom 3.7 m (12'2") 1665 mm (5'6") Stick 2210 mm (7'3") Stick1 Shipping height 2610 mm (8'7") 2740 mm (9'0")

2 Shipping length 5830 mm (19'2") 5850 mm (19'2")

3 Tail swing radius 1290 mm (4'3") 1290 mm (4'3")

4 Length to centers of rollers 2280 mm (7'6") 2280 mm (7'6")

5 Track length 2910 mm (9'7") 2910 mm (9'7")

6 Ground clearance 384 mm (15") 384 mm (15")

7 Track gauge 1870 mm (6'2") 1870 mm (6'2")

8 Transport width

Operating WeightsCaterpillar designed and built track-type undercarriage.

Track width Operating Weight Operating Weight(medium stick) (long stick)

standard 450 mm (18") triple grouser 7430 kg (16,370 lb) 7470 kg (16,470 lb)optional 600 mm (24") triple grouser 7600 kg (16,760 lb) 7650 kg (16,860 lb)

2320 mm Blade: add 380 kg (850 lb)2470 mm Blade: add 390 kg (870 lb)

With 450 mm (18") Segmented Rubber Track: add 23 kg (100 lb)

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450 mm (18") shoes 2320 mm (7'7") 2320 mm (7'7")600 mm (24") shoes 2470 mm (8'1") 2470 mm (8'1")


Working Ranges

Stick Length 1665 mm (5'6") 2210 mm (7'3")1 Maximum Digging Depth 4140 mm (13'7") 4690 mm (15'5")

2 Maximum Reach at Ground Level 6250 mm (20'6") 6770 mm (22'3")

3 Maximum Cutting Height 7390 mm (24'3") 7810 mm (25'7")

4 Maximum Loading Height 5250 mm (17'3") 5670 mm (18'7")

5 Minimum Loading Height 2400 mm (7'10") 2060 mm (6'9")

6 Maximum Depth Cut for 2440 mm (8') Level Bottom 3800 mm (12'6") 4380 mm (14'4")

7 Maximum Vertical Wall Digging Depth 3600 mm (11'10") 4120 mm (13'6")

Minimum Front Swing Radius 1660 mm (5'5") 2180 mm (7'2")

Stick Digging Force (SAE) 35 kN (7850 lb) 31 kN (6880 lb)

Bucket Digging Force (SAE) 44 kN (9820 lb) 44 kN (9840 lb)

* – Measurements shown are for machines equipped with the 0.40 m3 (0.53 yd3) bucket** – Measurements shown are for machines equipped with the 0.30 m3 (0.39 yd3) bucket

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UndercarriageCaterpillar designed and built track-type undercarriage.

Track width (with triple grouser shoes) Ground Pressure (Average)standard 450 mm (18") triple grouser 32.4 kPa (4.70 psi)

optional 600 mm (24") triple grouser 24.9 kPa (3.61 psi)

450 mm (18") segmented rubber track 32.6 kPa (4.73 psi)

BucketsBuckets have tapered sides, angled corner teeth, dual radius curvature, horizontal wear strips, and holes for optional side cutters.

Recommended Maximum Material DensityWidth Capacity Medium Stick Long Stick

mm in m3 yd3 kg/m3 lbs/yd3 kg/m3 lbs/yd3

460 18 0.15 0.2 1800 3000 1800 3000610 24 0.23 0.3 1800 3000 1800 3000760 30 0.31 0.4 1800 3000 1500 2500910 36 0.34 0.45 1500 2500 1200 2000


Load atMaximum Reach

Load PointHeight

Load RadiusOver Front

Load RadiusOver Side

Reach Boom Lift Capacities

1.67 STICK – 1665 mm (5'6")BUCKET – 750 mm (30")

UNDERCARRIAGE – StandardSHOES – 450 mm (18") triple grouser

BOOM – 3700 mm (12'2")BLADE – Up (or Without Blade)

* Limited by hydraulic capacity rather than tipping load. The above loads are in compliance with SAE hydraulic excavator lift capacity rating standard J1097.They do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. Weight of all lifting accessories must be deducted from the abovelifting capacities.

1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *750 *750 3.8020.0 ft lb *1650 *1650 11.95

4.5 m kg *2050 *2050 *600 *600 5.3215.0 ft lb *4500 *4500 *1350 *1350 17.29

3.0 m kg *2600 *2600 1650 1350 *600 *600 5.9810.0 ft lb *5600 *5600 3550 2850 *1300 *1300 19.58

1.5 m kg 3100 2400 1600 1300 *650 *650 6.135.0 ft lb 6600 5200 3400 2700 *1350 *1350 20.11

Ground kg 2900 2250 1550 1200 *750 *750 5.82Line lb 6250 4850 3250 2600 *1600 *1600 19.08

–1.5 m kg *3900 *3900 2900 2250 1500 1200 *1000 *1000 4.95–5.0 ft lb *8750 *8750 6200 4800 3250 2550 *2150 *2150 16.16

–3.0 m kg *1600 *1600 *1300 *1300 3.26–10.0 ft lb *3150 *3150 *2750 *2750 10.48





1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *750 *750 3.8020.0 ft lb *1650 *1650 11.95

4.5 m kg *2050 *2050 *600 *600 5.3215.0 ft lb *4500 *4500 *1350 *1350 17.29

3.0 m kg *2600 *2600 1700 1400 *600 *600 5.9810.0 ft lb *5600 *5600 3650 2950 *1300 *1300 19.58

1.5 m kg 3150 2500 1650 1300 *650 *650 6.135.0 ft lb 6800 5300 3500 2800 *1300 *1350 20.11

Ground kg 3000 2300 1550 1250 *750 *750 5.82Line lb 6400 4950 3350 2650 *1600 *1600 19.08

–1.5 m kg *3900 *3900 3000 2300 1550 1250 *1000 *1000 4.95–5.0 ft lb *8750 *8750 6350 4900 3350 2650 *2150 *2150 16.16

–3.0 m kg *1600 *1600 *1300 *1300 3.26–10.0 ft lb *3150 *3150 *2750 *2750 10.48



Load PointHeight












1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *800 *800 4.6620.0 ft lb *1750 *1750 14.89

4.5 m kg *1650 1400 *700 *700 5.9115.0 ft lb *3450 3000 *1500 *1500 19.26

3.0 m kg *2200 *2200 1700 1350 *650 *650 6.5010.0 ft lb *4750 *4750 3600 2900 *1450 *1450 21.30

1.5 m kg *3100 2500 1600 1300 *700 650 6.645.0 ft lb *6650 5300 3400 2750 *1500 1450 21.78

Ground kg 2900 2250 1500 1200 *800 700 6.36Line lb 6200 4800 3250 2550 *1750 1500 20.85

–1.5 m kg *3150 *3150 2850 2200 1500 1150 *1000 850 5.59–5.0 ft lb *7100 *7100 6050 4650 3150 2450 *2250 1850 18.28

–3.0 m kg *3800 *3800 *2300 2250 *850 *850 4.01–10.0 ft lb *8100 *8100 *4900 4800 *1800 *1800 12.92

1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *800 *800 4.6620.0 ft lb *1750 *1750 14.89

4.5 m kg *1650 1450 *700 *700 5.9115.0 ft lb *3450 3100 *1500 *1500 19.26

3.0 m kg *2200 *2200 1750 1400 *650 *650 6.5010.0 ft lb *4750 *4750 3700 3000 *1450 *1450 21.30

1.5 m kg *3100 2550 1650 1300 *700 700 6.645.0 ft lb *6650 5450 3500 2800 *1500 1500 21.78

Ground kg 3000 2300 1550 1250 *800 700 6.36Line lb 6400 4950 3350 2650 *1750 1550 20.85

–1.5 m kg *3150 *3150 2900 2250 1500 1200 *1000 900 5.59–5.0 ft lb *7100 *7100 6250 4800 3250 2550 *2250 1900 18.28

–3.0 m kg *3800 *3800 *2300 2300 *850 *850 4.01–10.0 ft lb *8100 *8100 *4900 *4900 *1800 *1800 12.92



Load PointHeight




1.67 STICK – 1665 mm (5'6") BUCKET – 750 mm (30")


BOOM – 3700 mm (12'2")BLADE – Down






1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *750 *750 3.8020.0 ft lb *1650 *1650 11.95

4.5 m kg *2050 *2050 *600 *600 5.3215.0 ft lb *4500 *4500 *1350 *1350 17.29

3.0 m kg *2600 *2600 *2000 1550 *600 *600 5.9810.0 ft lb *5600 *5600 *4350 3300 *1300 *1300 19.58

1.5 m kg *3400 2800 *2250 1450 *650 *650 6.135.0 ft lb *7300 6000 *4800 3150 *1350 *1350 20.11

Ground kg *3600 2650 *2300 1400 *750 *750 5.82Line lb *7800 5650 *4950 3000 *1600 *1600 19.08

–1.5 m kg *3900 *3900 *3150 2600 *1900 1400 *1000 *1000 4.95–5.0 ft lb *8750 *8750 *6750 5600 *4000 3000 *2150 *2150 16.16

–3.0 m kg *1600 *1600 *1300 *1300 3.26–10.0 ft lb *3150 *3150 *2750 *2750 10.48

1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *750 *750 3.8020.0 ft lb *1650 *1650 11.95

4.5 m kg *2050 *2050 *600 *600 5.3215.0 ft lb *4500 *4500 *1350 *1350 17.29

3.0 m kg *2600 *2600 *2000 1650 *600 *600 5.9810.0 ft lb *5600 *5600 *4350 3550 *1300 *1300 19.58

1.5 m kg *3400 3000 *2250 1600 *650 *650 6.135.0 ft lb *7300 6500 *4800 3400 *1350 *1350 20.11

Ground kg *3600 2850 *2300 1500 *750 *750 5.82Line lb *7800 6100 *4950 3250 *1600 *1600 19.08

–1.5 m kg *3900 *3900 *3150 2850 *1900 1500 *1000 *1000 4.95–5.0 ft lb *8750 *8750 *6750 6050 *4000 3200 *2150 *2150 16.16

–3.0 m kg *1600 *1600 *1300 *1300 3.26–10.0 ft lb *3150 *3150 *2750 *2750 10.48



Load PointHeight












1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *800 *800 4.6620.0 ft lb *1750 *1750 14.89

4.5 m kg *1650 1600 *700 *700 5.9115.0 ft lb *3450 3450 *1500 *1500 19.26

3.0 m kg *2200 *2200 *1800 1550 *650 *650 6.5010.0 ft lb *4750 *4750 *3900 3350 *1450 *1450 21.30

1.5 m kg *3100 2850 *2100 1500 *700 *700 6.645.0 ft lb *6650 6150 *4500 3150 *1500 *1500 21.78

Ground kg *3550 2650 *2300 1400 *800 *800 6.36Line lb *7700 5650 *4900 2950 *1750 *1750 20.85

–1.5 m kg *3150 *3150 *3350 2550 *2100 1350 *1000 1000 5.59–5.0 ft lb *7100 *7100 *7200 5500 *4550 2900 *2250 2200 18.28

–3.0 m kg *3800 *3800 *2300 *2300 *850 *850 4.01–10.0 ft lb *8100 *8100 *4900 *4900 *1800 *1800 12.92

1.5 m (5.0 ft) 3.0 m (10.0 ft) 4.5 m (15.0 ft)

m

ft

6.0 m kg *800 *800 4.6620.0 ft lb *1750 *1750 14.89

4.5 m kg *1650 *1650 *700 *700 5.9115.0 ft lb *3450 *3450 *1500 *1500 19.26

3.0 m kg *2200 *2200 *1800 1700 *650 *650 6.5010.0 ft lb *4750 *4750 *3900 3600 *1450 *1450 21.30

1.5 m kg *3100 3100 *2100 1600 *700 *700 6.645.0 ft lb *6650 6600 *4500 3400 *1500 *1500 21.78

Ground kg *3550 2850 *2300 1500 *800 *800 6.36Line lb *7700 6100 *4900 3200 *1750 *1750 20.85

–1.5 m kg *3150 *3150 *3350 2800 *2100 1450 *1000 *1000 5.59–5.0 ft lb *7100 *7100 *7200 5950 *4550 3150 *2250 *2250 18.28

–3.0 m kg *3800 *3800 *2300 *2300 *850 *850 4.01–10.0 ft lb *8100 *8100 *4900 *4900 *1800 *1800 12.92


Standard Equipment

Door and caps lock with one-key security systemMirrors (cab rear and left)Power Train:

- MMC 4M40 Diesel engine- 24-volt electric starting- One touch low idle- Cooling system- Water separator- Two speed auto-shift travel- Straight line travel- Muffler

Reverse swing damping valveUndercarriage:

- Hydraulic track adjusters- Track-type undercarriage with grease lubricated seals- Idler end track guiding guards- 450 mm (18") triple grouser shoes with additional holes

for mounting rubber street padsWorking light, chassis mounted

Alternator, 35 ampAutomatic swing parking brakeAuxiliary hydraulic valveBatteries, heavy-dutyCab:

- Air conditioner with defroster- AM/FM radio- Ash tray- Beverage holder- Coat hook- Floor mat- Horn- Instrument panel and gauges- Joysticks, pilot-operated- KAB T1P seat with adjustable armrest, without head rest- Lighting, interior- Literature compartment- Neutral lever (lockout) for all controls- Openable front windshield- Openable skylight- Pillar mounted windshield wiper and washer- Rear window emergency exit- Seat belt- Travel control pedals with hand levers- Utility space for magazines


Optional Equipment

Right-side boom lightsSidecuttersStick and boom combinations:

- 3.7 m (12'2") boom with left side light- 2.21 m (7'3") stick- 1.67 m (5'6") stick

Track:- 600 mm (24") triple grouser- 450 mm (18") segment rubber track

Travel alarm (mandatory in certain countries)Vandalism guard

Auxiliary hydraulic lines for sticks and boomBlade, 2320 mm (7'7"), for use with 450 mm (18") steel orsegment rubber trackBlade, 2470 mm (8'1"), for use with 600 mm (24") trackBucketsBucket linkageCab mounted working lightsCoolant, extended life -50° C (-58° F) Front windshield guardHand control pattern changerHydraulic arrangements, auxiliary:

- single-function capability- double-function capability- combined single and double function capability

Power supply 12V-5A (cigar lighter type)

308C CR Hydraulic Excavator specifications 23

Notes

R

For more complete information on Cat products, dealer services, and industry solutions, visit uson the web at www.CAT.com

© 2002 CaterpillarPrinted in U.S.A.

Materials and specifications are subject to change without notice.Featured machines in photos may include additional equipment.

See your Caterpillar dealer for available options.AEHQ5469 (2-02)

308C CR Hydraulic Excavator

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