®®

EngineEngine Model Cat® 3126BGross Power 98 kW 132 hpRated Flywheel Power 92 kW 123 hp

WeightsOperating Weight 16 851 kg 37,150 lb

Pipelaying EquipmentLifting Capacity 18 145 kg 40,000 lb

561NPipelayer

2

561N PipelayerExcellent response and control for productivity and versatility.

Engineered to exceed the most demandinggoals. The 561N’s increased power andversatility, combined with rugged components,are designed for tough and varied workingconditions. This machine offers you thereliability and durability you expect fromCat Pipelayers.

Undercarriage

Elevated sprocket design for optimizedbalance and performance. The finaldrives are above the work area, isolatingthem from ground impact for longpower train component life. Variousarrangements to choose from based onthe ground conditions. pg. 12

Structure

Mainframe is designed and built fordurability using the latest technologyin engineering and manufacturing.Providing solid support and perfectalignment for major components.pg. 11

Finger Tip Control

Finger Tip Control (FTC) combinessteering, machine direction and gearselection into a single control system.These control functions can besimultaneously operated using onlyone hand for enhanced operator comfortand increased productivity. pg. 6

✔

Drive Train

Rugged, durable, and reliable componentsdeliver smooth, responsive power andlasting reliability. The Auto-shift andAuto-kickdown features enhanceoperator comfort. pg. 5

Power Train

The Cat 3126B ATAAC diesel enginefeatures a HEUI™ fuel system.Designed for performance, durability,serviceability, and fuel economy, the3126B HEUI engine meets EPA Tier 2,EU Stage II, and MOC Step 2 exhaustemission regulations. pg. 4

✔

✔ New Feature

3

Total Customer Support

Your Caterpillar® dealer offers a widerange of services that can be set upwith a Customer Support Agreement.The dealer can customize a plan foryou, from PM service to total machinemaintenance, allowing you to optimizeyour return on investment. pg. 14

Serviceability

Major modular components aredesigned for excellent serviceability andallow fast in-field component exchange.pg. 13

✔

Styling

Modern styling with rounded shapesand tapered engine enclosures provideexcellent visibility. Robust sheet metalexterior and heavy steel access doorpanels and guards are easily accessibleand durable. pg. 10

✔

Operator Station

Ergonomically designed for maximumproductivity and comfort. Controls areintuitive, low-effort and easy to reach,viewing area is excellent, instrumentpanel is easy to read and informative.Simplified access with ladder on theleft rear side of the machine. pg. 8

✔

Pipelayer

Hydraulic load line and boom winchesprovide excellent speed capability.Counterweight and frame designprovides excellent stability whileoffering increased viewing area.pg. 7

Cat 3126B HEUI Engine. The Cat 3126Bdiesel engine is a six cylinder, four-cycledesign that provides long, effectivepower strokes for high torque and morecomplete fuel combustion. The 3126Bengine is equipped with an electronicair inlet heater. The heater warms theair in the air inlet manifold for easierstarting and reduced white smoke oncold starts.

Turbocharger and Aftercooler. A well-matched turbocharger and air-to-airaftercooler results in increased power.The exhaust driven turbocharger packsmore air into the cylinders, while theair-to-air aftercooler cools the pressurizedair from the turbocharger, making theengine intake air denser. The increasedair in the cylinder results in morepower, improved combustion, andreduced exhaust emissions.

Torque Rise. The direct injectedelectronic fuel system provides acontrolled fuel delivery increase asthe engine lugs back from rated speed.This results in increased horsepowerabove rated power. A combination ofincreased torque rise and maximumhorsepower improves response andprovides greater drawbar pull.

• Rated flywheel power 92 kW(123 hp)

• Maximum flywheel power 98 kW(132 hp)

3126B Engine Features. Major featuresinclude:

• Increased power to 92 kW (123 hp)for increased performance.

• Large displacement electronicengine with lower exhaust emissionsand good cold start capability.

• Power train to engine link withcontrolled throttle shifting.

• Poly-Vee serpentine engine fanbelt with auto tension featureeliminates the traditional threeto four belt system.

• Extended oil and engine filterchange intervals up to 500 hoursafter break-in.

• ATAAC cooling system.

• Improved Multiple Row Modular(IMRM) radiator is less subject toplugging due to a unique radiatorfin design, which provides excellentheat transfer capability.

4

Power Train 3126B HEUI engine meets EPA Tier 2, EU Stage II, and MOC Step 2 exhaust emissionregulations and offers excellent performance levels.

Torque Converter. The 561N singlestage torque converter efficientlyresponds to changing load conditionsby providing torque multiplication,therefore increasing drawbar power.It also provides protection to the drivetrain components by preventingshock loads. The torque converter isefficiently matched to the power traincomponents and provides the superiorperformance you need.

Auto-Shift/Auto-Kickdown. Auto-shiftallows the operator to pre-select aforward and reverse gear for easy,efficient directional changes.

Auto-shift settings include:

• First forward to second reverse.

• Second forward to second reverse.

• Second forward to first reverse.

Auto-kickdown allows the transmissionto automatically downshift whensignificant load increases are detected.

Steering Clutch and Brakes. Oil cooled,hydraulically actuated, large diameterplates and clutch discs provide highertorque capacity and increased service life.

Transmission. The proven planetarypower shift transmission features threespeeds forward and three speeds reverseand utilizes large diameter, high capacity,oil cooled clutches. To maximize thelife of the transmission, the planetarydesign distributes loads and stressesover multiple gears.

• Controlled throttle shifting regulatesengine speed during high-energydirectional shifts for smootheroperation and longer component life.

• The transmission and bevel gear setare modular by design, and easilyslide into the machine’s rear case.

• Forced oil flow lubricates and coolsclutch packs to provide maximumclutch life.

• Load compensating shifting providessmooth engagement of the clutchesunder loaded conditions.

Elevated Final Drive. Final drives areisolated from ground and work toolinduced impact loads for extendedpower train life.

Electronic Steering and TransmissionControls. The 561N provides Finger TipControl for steering. Soft touch buttonslocated on the steering controls shift theelectronically controlled transmission.

Electronic Clutch Pressure Control.The 561N has an additionaltransmission-shifting feature for addedperformance and operator comfort —the Electronic Clutch Pressure Control(ECPC). This unique feature providessmoother shifting by regulating andmodulating the individual clutchesbased on current operating conditions.

5

Drive TrainRugged, durable, and reliable components deliver smooth, responsive power andlasting reliability.

Three-Speed Forward/Reverse GearSelection. Three-speed forward/reversegear selection is achieved simply bypressing the yellow speed selectionbuttons. These buttons are integratedinto the Finger Tip Control group.

• Automatic shifting features andreduced lever efforts provide easierupshift and downshift, increasedoperator comfort, reduced fatigue,and shortened cycle times.

Electronic Clutch and Brake SteeringSystem. The electronic clutch and brakesteering system incorporates low effortfinger tip levers allowing the operatorto work more precisely in close areas,around structures, obstacles and gradestakes. Pulling the left or right fingerpaddle causes the machine to turnaccording to the amount of paddledisplacement.

• Another feature aimed at operatorcomfort is electric verticaladjustment of the FTC controlgroup. This positions the operator’sarm for efficient ergonomics.

Machine Direction. Moving themachine’s transmission forward/neutral/reverse direction lever controls machinedirection. The middle position puts themachine transmission in neutral.

Auto-shift and Auto-kickdown. Auto-shift and Auto-kickdown include thefollowing features:

• Auto-shift allows the operator topreselect a forward and reverse gearfor frequent directional changes.The settings include first forward tosecond reverse, second forward tosecond reverse and second forwardto first reverse.

• Auto-kickdown automaticallydownshifts from any gear whenthe machine detects a significantincrease in load.

6

Finger Tip ControlFinger Tip Control (FTC) combines steering, machine direction and gear selection into asingle control system, which can be operated with one hand for enhanced operator comfortand increased productivity.

Winches and Boom.

• Independent hydraulic winches driveboom and hook drawworks.

• Oil-disc brakes provide smoothoperation, positive retention ofboom and hook positions.

• Modular design allows fastreplacement, easy field service,and testing.

• Single lever, infinitely variablespeed controls for both boom andhook allow precise control.

• Emergency free-fall function on loadline control allows the operator todrop the load quickly.

• Tubular, cast-steel boom is rugged,delivers better fatigue life.

• Replaceable boom-mount bearings.

• Symmetrical boom simplifiesinstallation.

Counterweight and Frame.

• Counterweight design optimizesviewing area while traveling.

• Mainframe consists of box-sectionframe welded to cast bevel gear case.

• Counterweight is extendedhydraulically for load balance,visibility, and clearance.

• Service latch mechanically lockscounterweight in extended position.

Drawbar.

• Large jaw opening and pin diameter.

• Able to tow wide range ofattachments.

7

PipelayerCaterpillar pipelayer system includes winch and boom, counterweight and frame.

10018014.qxd 7/17/03 10:14 AM Page 7

8

Ergonomically designed for operator’s maximum comfort and productivity.

Operator Station

Seat. Ergonomically designed and fullyadjustable for maximum comfort. Theseat cushion reduces the pressure on thelower back and thighs while allowingunrestricted arm and leg movement.

Electronic Monitoring System (EMS III).EMS III provides the operator instantfeedback on machine conditions andrecords performance data to helpdiagnose problems. Flashable memoryallows system upgrades, as newtechnology and software becomeavailable. This system is compatiblewith Cat ET and CMS service tools.EMS III includes the following gaugesand readouts:

• Fuel level gauge

• Hydraulic oil temperature gauge

• Engine coolant temperature gauge

• Power train oil temperature gauge

• Engine oil pressure indicator

• Engine speed digital readout

• Transmission gear indicator

• Hour Meter

• Odometer

Controls. Finger Tip Control (FTC)combines steering, machine directionand gear selection into a single controlsystem, which can be operated with onehand for enhanced operator comfort andincreased productivity.

Ergonomic Work Tool Controls.Pipelayer controls are low effort andallow simultaneous, precise positioningof the load line and boom.

Load Line Speed Range. Allows theoperator to select High or Low.

Counterweight Control. Adjusts theposition of the counterweight for addedmachine stability.

Power Supply. The voltage converterprovides two 12-volt power supplies.

Access Ladder. Direct access to theoperator’s station utilizing ladder onleft side of the machine.

9

Styling. Rounded machine shape offersexcellent visibility, accessibility, andserviceability.

• Durable, heavy steel doorpanel covers.

• Pre-cleaner is below the hood forgood visibility.

• Controls are ergonomic for easieroperation and better efficiency.

Accessibility and Serviceability.

• Hinged engine door to increaseengine and service access.

• Remote-mounted filters locatedwithin easy reach during PMservice.

• Air pre-cleaner filter conditionmonitor located in the operatorstation for high visibility.

• Redesigned fuel tank for easierinternal cleaning.

• Fast fill fuel tank provision added(attachment).

• Larger service panel doors.

• Diagnostic test ports added for quicktroubleshooting.

Quality and Reliability.

• Doubled 4 mm (0.16 in) sheet metalon the side service access panels andrear guard.

• Stamped, rounded sheet metalcorners add strength.

• Rubber isolation mounted fuel tankreduces tank vibration and reducespotential stress fractures.

• Heavy-duty reinforced radiatorguard is now standard.

• Heavy-duty rear guard.

10

StylingModern styling with rounded shapes and tapered hood enhances operator visibility.The N-Series combines eye-catching styling with solid, reliable performance.

Frame and Castings. The 561N case andframes are built to absorb high impactshock loads and torsional forces.Castings are strategically located withinthe frame to add additional strength.Caterpillar uses robotic weldingtechniques in the assembly of the caseand frames. This insures quality andreliability throughout the structure.The one-piece all welded chassisprovides superior strength over bolteddesigns, and provides stiffness anddurability over the life of the machine.

• High strength steel mainframeresists impact shock loads.

• Computer-aided finite elementanalysis is used to evaluate andensure high durability of thechassis by computer modeling itand identifying high stress area.

• Full scale structural testing totest integrity of the structures.

• Robotic welding provides deeppenetration and consistency forlong life, and reduces the chancefor errors that may be made duringmanual welding.

• Precision top level machiningfor perfect alignment of boresand surfaces minimizes outof tolerance wear patternsand improves durability.

• Non-oscillating roller frames forgreater stability in pipelayingapplications.

• The recoil system is sealed andlubricated.

• Improved pipelayer structuremounting.

Optional Roll Over Protective Structure.Provides for increased operator comfortand protection.

11

StructureEngineered and manufactured to provide durability in the most demanding work.

Elevated Final Drive.

• Isolates final drives from ground andwork tool induced impact loads forextended power train life.

• Keeps sprocket teeth, bushings, andfinal drives away from abrasivematerials and moisture.

• Caterpillar uses single reductionplanetary final drives in the 561Nproviding long-lasting performanceand durability.

Undercarriage Arrangements.

Standard Arrangement - Overallshipping width under 3 m (118 in).

Optional Low Ground Pressure (LGP)arrangement -

• Specially designed to work in softand spongy conditions.

• Wide track shoes increase trackcontact area and reduce groundpressure for excellent flotation.

Heavy Duty Sealed and LubricatedTrack. Permanently coats the track pinwith a sealed-in lubricant, minimizingmetal-to-metal contact.

• Virtually eliminates internal pin andbushing wear.

• Lubricant is held in a reservoir in thetrack pin.

Optional Rotating Bushing Track.Rotating Bushing Track is designed toextend system life and lower costs inhighly abrasive low to moderate impactapplications. RBT features bushingsthat rotate when in contact with thesprocket. Since the bushing rotateswhen in contact with the sprocket,relative motion between the bushingand the sprocket is virtually eliminated,greatly reducing bushing and sprocketwear. The minimal bushing wear thatoccurs is evenly distributed over thebushing’s surface. This design eliminatesbushing turn maintenance expense.

Complete Guarding. Caterpillarundercarriages are designed with fulllength guarding on top of the trackroller frame. This prevents abrasivematerials from falling down onmoving parts.

Roller Frames. Roller frames aretubular, to resist bending and twisting.The recoil system is sealed andlubricated.

Optional High Flange Improved TrackRollers. Combined with center or fulllength roller guard attachments greatlyimprove track guiding for demandingside slope conditions.

Track Shoes. Select from 560 mm(22 in) to 760 mm (30 in) single grousershoes made from heat-treated, rolledsteel for added strength. This allows fornarrow machine transportability on lowground pressure arrangements.

12

UndercarriageThe Caterpillar elevated sprocket undercarriage arrangement is designed for better balance,performance, and component life.

Product Link. This option allows thecustomer or dealer to obtain machinediagnostics and location from theiroffices. Product Link provides updateson service meter hours, machinecondition, machine location, as wellas integrated mapping/route planning.

Electronic Monitoring System.The 561N features a more flexiblemonitoring system that is easilyupgraded by flashing software ratherthan replacing the module, reducingparts cost. As technology changes andnew electronics and software becomeavailable, this upgraded monitoringsystem will allow the machine to beeasily updated.

Built-in Serviceability. Less servicetime means more working time. Majorcomponents are designed as modulesand most can be removed withoutdisturbing or removing othercomponents.

Diagnostics. Cat 561N diagnostic andtroubleshooting capabilities are amongthe best. The machine dashboard allowsfor quick identification of a problemand its cause, utilizing a three levelwarning system. Diagnostic connectorallows Caterpillar dealers to quicklytroubleshoot the 561N or accessstored data with the use of ElectronicTechnician (Cat ET) or ECAP.

Ecology Drains. Ecology drains providean environmentally safer method todrain fluids. They are included on theradiator, hydraulic tank, and majorpower train components.

Modular Cooling System. Individualradiator core modules are easily servicedwithout major component removal.

Easy Engine Maintenance. Many partscan be rebuilt and are available asremanufactured components.

• Parent-metal block can be reboredtwice and dry-sleeved.

• Connecting rods can be removedthrough cylinder tops.

• Camshaft followers and push rodscan be replaced without removingcamshaft.

• Extended oil and engine filterchange intervals up to 500 hours.

13

ServiceabilityModular design moves Caterpillar a generation ahead in simplifying serviceand maintenance.

Product Support. Your Cat Dealeroffers a wide range of services that canbe set up under a Customer SupportAgreement (CSA) when you purchaseyour equipment. The dealer will helpyou choose a plan that can covereverything from the machine andattachment selection to replacement.This will help you get the best returnon your investment.

Remanufactured Components.Save money with remanufacturedparts. You receive the same warrantyand reliability as new products at acost savings of 40 to 70 percent.

Service Capability. Whether in thedealer’s fully equipped shop or inthe field, you will get trained servicetechnicians using the latest technologyand tools.

Purchase. Consider the financingoptions available as well as day-to-dayoperating costs. This is also the timeto look at dealer services that can beincluded in the cost of the machine toyield lower equipment owning andoperating costs over the long run.

Replacement. Repair, rebuild, orreplace? Your Cat Dealer can helpevaluate the cost involved so youcan make the right choice.

Maintenance. More and moreequipment buyers are planning foreffective maintenance before buyingequipment. Choose from your dealer’swide range of maintenance services atthe time of your purchase. Repair optionprograms guarantee the cost of repairsup front. Diagnostic programs such asScheduled Oil Sampling and TechnicalAnalysis help avoid unscheduled repairs.

14

Total Customer SupportExcellent parts availability and the best service capability help increase productivity.

15561N Pipelayer specifications

Weights

Operating Weight 16 851 kg 37,150 lbShipping Weight 15 921 kg 35,100 lb

• Operating Weight: Includes lubricants, coolant, 100% fuel,hydraulic controls and fluids, backup alarm, seat belt,560 mm (22 in) single grouser shoes, drawbar,counterweight, boom and pulley blocks and operator.

• Shipping Weight: Includes lubricants, coolant, 10% fuel,hydraulic controls and fluids, backup alarm, seat belt,560 mm (22 in) single grouser shoes, drawbar, andcounterweight.

Pipelaying Equipment

Lifting Capacity 18 145 kg 40,000 lbHook Winch Drum Diameter 216 mm 8.5 inBoom Winch Drum Diameter 245 mm 9.63 inHook Winch Flange Diameter 398 mm 15.5 inBoom Winch Flange Diameter 372 mm 14.63 inHook Winch Drum Length 254 mm 10 inBoom Winch Drum Length 254 mm 10 inHook Winch Capacity - 72.85 m 239 ft16 mm (5/8 in) diameterBoom Winch Capacity - 49.38 m 162 ft16 mm (5/8 in) diameterHook w/ Wire Rope Installed - 39.63 m 130 ft16 mm (5/8 in) diameterBoom w/ Wire Rope Installed - 25.91 m 85 ft16 mm (5/8 in) diameterBoom Line Speed 46 m/min 151 ft/minBare Drum Hook Speed (Lo) 33 m/min 108 ft/minBare Drum Hook Speed (Hi) 69.5 m/min 228 ft/min2 Part Line Hook Speed (Lo) 16.5 m/min 54 ft/min2 Part Line Hook Speed (Hi) 34.8 m/min 114 ft/min3 Part Line Hook Speed (Lo) 11 m/min 36 ft/min3 Part Line Hook Speed (Hi) 23.2 m/min 76 ft/minBoom Length 5.49 m 18 ftRemovable Counterweight - 16Number of SegmentsRemovable Counterweight - 114 kg 251 lb7 each atRemovable Counterweight - 191 kg 421 lb9 each atTotal weight extendable 2980 kg 6,570 lb

• Hydraulic Power (55.7 gpm @ 2700 psi and 2200 rpm pumpspeed independent of torque converter) (211 L/min @18 616 kPa/186 bar)

Engine

Engine Model Cat 3126BGross Power 98 kW 132 hpRated Flywheel Power 92 kW 123 hpNet Power - Caterpillar 92 kW 123 hpNet Power - ISO 9249 92 kW 123 hpNet Power - EEC 80/1269 92 kW 123 hpNet Power - SAE J1349 92 kW 123 hpNet Power - DIN 70020 114 PSBore 110 mm 4.33 inStroke 127 mm 5 inDisplacement 7.2 L 439 in3

• Engine ratings at 2100 rpm.

• Meets the EPA Tier 2, EU Stage II, and MOC Step 2 exhaustemission regulations.

• Net power advertised is the power available at the flywheelwhen the engine is equipped with fan, air cleaner, muffler,and alternator.

• No derating required up to 4600 m (15,100 ft) altitude, beyond4600 m (15,100 ft) automatic derating occurs.

Transmission

1 Forward 3.1 kph 1.9 mph2 Forward 5.4 kph 3.3 mph3 Forward 9.1 kph 5.6 mph1 Reverse 3.8 kph 2.3 mph2 Reverse 6.7 kph 4.1 mph3 Reverse 11.3 kph 6.9 mph

Undercarriage

Number of Shoes - Each Side 44Track Rollers - Each Side 8Track Gauge 2000 mm 79 inTrack on Ground 2604 mm 103 inTrack Shoe Width - Standard 560 mm 22 inTrack Shoe Width - LGP (1) 610 mm 24 inTrack Shoe Width - LGP (2) 760 mm 30 inGround Contact Area - 2.93 m2 4,542 in2

Standard ShoeGround Contact Area - LGP (1) Shoe 3.18 m2 4,924 in2

Ground Contact Area - LGP (2) Shoe 3.96 m2 6,135 in2

Ground Pressure - 56 kPa 8.1 psiStandard ShoeGround Pressure - LGP (1) Shoe 52 kPa 7.6 psiGround Pressure - LGP (2) Shoe 42 kPa 6.1 psi

16 561N Pipelayer specifications

Standards

• Brakes meet the standard SAE J/ISO 10265 MARCH99.

• Optional ROPS (Rollover Protection Structure) offeredby Caterpillar for the machine meets ROP criteriaSAE J397 OCT95, SAE J1040 MAY94, ISO 3164 1995,and ISO 3471-11994.

Hydraulic Controls

Type Two-section vane pumpwith pilot operatedcontrol valves.

Output - Maximum 216 L/min 57.1 gal/minRelief Valve Setting - 19 600 kPa 2,850 psiCounterweightRelief Valve Setting - 18 600 kPa 2,700 psiHook and Boom Winch

• Pump output @ 2200 pump rpm (2100 engine rpm) andmaximum pressure.

Service Capacities

Fuel Tank 235 L 62.2 galCrankcase (with Filter) 26 L 6.9 galFinal Drives (each) 6 L 1.6 galBoom Winch 5.7 L 1.5 galCooling system 48 L 12.6 galHydraulic Tank 37.5 L 9.9 gal

Specified Equipment• Diameter wire rope 16 mm 5/8 in• Minimum breaking strength 18 688 kph 41,200 lb• 3 part load line• 3 part boom line• Counterweight extended 2980 kg 6570 lb• Standard boom 5.49 m 18 ft• Total operating weight 16 851 kg 37,150 lb

A Maximum lift capacity per ISO 8813B Rated load capacity per ANSI/ASME B30.14C Working range per ANSI/ASME B30.14

Load Overhang

Lifting Capacity

15

10

5

0

1 2 3 4 5 6

40

30

20

10

064 8 10 12 14 16 18

A

B

C

lb x 1000kg x 1000

Feet

Meters

17561N Pipelayer specifications

DimensionsAll dimensions are approximate.

1 Track Gauge 2000 mm 79 in2 Width of Tractor - 2560 mm 101 in

Standard Shoes3 Width of Tractor - 2983.5 mm 117.5 in

Counterweight/Boom Removed4 Width of Tractor - 4463 mm 176 in

Counterweight Extended5 Machine Height - Tip of 2519 mm 99 in

Grouser to Top of Winch6 Drawbar Height (Center of 537.5 mm 21 in

Clevis)

7 Length of Track on Ground 2604 mm 103 in8 Operating Length (with 3708.5 mm 146 in

Drawbar)9 Height to Top of Stack 3041.4 mm 119 in10 Grouser Height 47 mm 1.9 in11 Ground Clearance (SAE J1234) 432.5 mm 17 in12 Boom Height - Tip of 6361.7 mm 251 in

Grouser at SAE 4 ft (1.22 m)Overhang

12

11

12

3

4

5

9

108

7

6

18 561N Pipelayer specifications

Standard EquipmentStandard equipment may vary. Consult your Caterpillar dealer for details.

POWER TRAIN3126B HEUI Caterpillar diesel engine with:

Air-to-air aftercoolerAir cleaner, dry-type, with precleanerAir cleaner service indicatorAir intake heaterAuto-dust ejector with air filter and pre-screenerAutomatic downshift and kickdown

transmission controlCoolant, extended lifeCoolant sampling portControlled throttle shiftingFan, blowerFuel filters, dualFuel priming pumpFuel/water separatorLoad compensated shiftingMufflerRadiator, modular

(High Performance Perforated Fins IMRM)Selectable shift pointsSingle poly-vee belt with auto belt tensionerSteering system, FTC Clutch and BrakeTransmission, three-speed planetary with torque converter

OTHER STANDARD EQUIPMENTAltitude operation capability,

4600 meter (15,100 ft) without deratingBrake system, service, parking, and emergencyDiagnostic pressure taps, centralized ecology drainsExtended service intervals (500 hours)Front pull deviceGuards:

Center track-guiding guardsCrankcase, normal serviceEnd guideFuel tankInstrument panelRadiator, hingedRear

Hinged engine door, left sideImplement oil filterKeyed lockable enclosuresRigid drawbarS•O•SSM analysis taps for engine, transmission, and

implement fluidsTransmission remote pressure tapsVandalism protection

ELECTRICALAlarm, back-upAlternator, 70-ampConverter, 10-amp/12-voltDiagnostic connectorHornHour meterIntegrated front lightsOdometerStarting, 24-volt direct

OPERATOR ENVIRONMENTDecelerator pedal and switchEngine air cleaner service indicatorEngine RPM display/gear displayFoot pegs for slope workGauge cluster, four (fuel, temperatures)FTC control for Clutch and Brake steeringLockable storage compartmentMonitoring System, Electronic (EMS III)Power points, two 12-voltPre-start coolant level monitoring systemProduct Link readySeat, vinyl suspension, with adjustable armrestsSeat belt, retractable 76 mm (3 in)Storage and literature compartmentTransmission shift points selectionTravel speed and gear limiter, electronic

PIPELAYERBoom, 5.49 m (18 ft)Counterweight, extendible segmented 2980 kg (6,570 lb)Hydraulics, pipelayer system

UNDERCARRIAGEAdjuster, hydraulic trackCarrier rollersGuards, end track-guidingHeavy-duty sealed and lubricated tracksLifetime lubricated track rollers and idlersMaster link, two piecesSprockets, segmentedTrack frame, 8 rollersTrack with single grouser track shoes

44-section, 560 mm (22 in)Wider tread and taller flange idler profile

19561N Pipelayer specifications

kg lb

Alternator, 70-amp brushless 0.34 0.8

Control, two pedal brake 0 0

Cooling, high ambient 3 7

Fan, reversible 7 15.5

Grid, sandblast 15 33

Guide, track MS 70 154

Guards:

Crankcase extreme service 63 139

Grill, heavy-duty 29 64

Precleaner 7 16

Radiator, heavy-duty, hinged grill 20 44

Radiator core protection grid 17 38

Rear, heavy-duty 5 11

Track roller 146 321

Track roller, LGP 112 247

Lighting system, four lights 10 23

kg lb

Precleaner with prescreener 5 11

Product Link 4 9

Rollover, protection system 136 300

Starting aids:

Heater, engine coolant choice of120 or 240-volt (dealer installed) 1 2

Heavy-duty batteries 0 0

Security system, machine 3 7

Sound suppression, exterior 8.2 18

Suspension seat, vinyl, low back 10 22

Tool kit (dealer installed) 7 16

Track rollers, high flange 15 33

Track, pair, sealed and lubricated, 44-section:

610 mm (24 in) MS/HD 96 212

760 mm (30 in) MS/HD 382 842

Optional Equipment (with approximate changes in operating weight)

Optional equipment may vary. Consult your Caterpillar dealer for details.

R

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

© 2003 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.AEHQ5550 (7-03)

561N Pipelayer