Cat 3176 ETA EngineBase Power (all gears) 134 kW 180 hpVariable Horsepower Arrangement

- gears 1-3 134 kW 180 hp- gears 4-8 149 kW 200 hp

Variable Horsepower Plus Arrangement- gears 1-3 134 kW 180 hp- gears 4-6 149 kW 200 hp- gears 7-8 164 kW 220 hp

WeightsGross Vehicle Weight - base 15 676 kg 34,560 lb

front axles 4471 kg 9,856 lbrear axles 11 206 kg 24,704 lb

MoldboardBlade Width 4267 mm 14 ft

160HMotor Grader

Global Version

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160H Motor GraderThe 160H maximizes the return on your investment with outstanding productivity and durability.

Caterpillar has matched and balanced allpower train components, hydraulic systems,and structural elements to deliver a superiormotor grader. Include the best operatorstation in the industry and world-classdealer support, and the Cat 160H representsa reliable, cost-effective investment.

Environmentally Responsible Design

New engine arrangements and operatorstation designs reduce emissions andmeet current and anticipated regulationsfor interior and exterior sound,emissions, and exhaust. pg. 12

Operators Station

Low effort blade controls, electronicthrottle control, EMS III monitoringsystem, and improved ventilationprovide world-class operator controland comfort. Improved visibility tothe front and rear increase operatorconfidence and productivity. pg. 10

Hydraulics

The load-sensing hydraulic systemlowers power consumption and systemheat. The advanced PPPC controlvalves provide low lever effort,balanced flow and consistent cylinderspeeds for outstanding blade control.Blade float is incorporated into theblade lift valves. pg. 6

Power Train

The power shift transmission takes fulladvantage of the powerful 3176 ETAengine. Variable Horsepower usesspecific torque curves for each gearrange for optimum performance. Dual airsystem and multi-disc oil brakes assurereliable braking control. pg. 5

Engine

The Cat 3176 ETA is designed to handlethe tough loads. Variable Horsepowermatches torque curves to the gear,to maximize response, power andefficiency. Low fuel consumptionreduces operating costs and reducesenvironmental impact. pg. 4

New Feature

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Customer Support

Your Cat dealer offers a range ofservices that help you operate longerwith lower costs. pg. 13

Serviceability

Caterpillar re-engineered inspectionand service points, grouping them intoa convenient left-hand side, groundlevel service center. Ground levelfueling and extended engine andhydraulic oil change intervals helpminimize downtime. pg. 9

Structures

The 160H frame is designed and builtto exceed the expectations of thecustomer. pg. 8

Drawbar, Circle, Moldboard

Flexible moldboard positioning anda long wheelbase improve materialhandling. Rugged construction andreplaceable wear parts minimizeoperation costs. pg. 7

Cat 3176 Engine. The innovativeCat 3176 diesel engine delivers large-engine performance from a compactengine design. The six-cylinderengine is turbocharged and air-to-airaftercooled. With high displacementand low rated speed, this engineprovides excellent fuel economyand durability that can significantlyreduce operating costs.

Variable Horsepower (VHP).Automatically increases horsepowerin higher gears when the machine canuse it. In lower gears where traction islimited, horsepower is limited, reducingwheel slip and conserving fuel.

The 160H has a VHP Plus optionto provide additional horsepowerin forward gears 7-8.

Lugging Performance. High torqueoutput and torque rise makes the 3176very responsive. Its superior luggingcapability maintains consistent gradingspeeds without the need to downshift.

Fuel Efficiency. Caterpillar state-of-the-art electronically controlled, unitinjection fuel system has high injectionpressure for complete fuel combustion,efficient fuel use and reducedemissions. The dual-filter systemreduces component wear.

Extended Engine Life. The largebore-stroke design and conservativepower rating minimize internal stressesand increase component life. The lowengine speeds reduce engine wear andsound levels.

Hydraulic Demand Fan. The hydraulicdemand fan control automatically adjustscooling fan speed according to enginecooling requirements. This systemreduces demands on the engine,putting more power to the groundand improving fuel efficiency.

Improved Torque. Power curvescustomized for the 160H increase peaktorque for higher ground speeds andenhanced productivity. Rimpull hasbeen increased in all gears for greaterproductivity.

Emissions Compliant. The new 160Hhas reduced NOx, hydrocarbon, andparticulate emissions. The Cat 3176meets or exceeds all U.S. EPA Tier IIand EU Stage II emissions controlstandards worldwide.

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EngineCaterpillar engines deliver increased performance and lower operating costs.

Power Shift Transmission. Designedand built specifically for Cat motorgraders, the rugged transmissionprovides on-the-go, full-power shiftingas well as inching capability.

Direct Drive. Delivers superior fuelefficiency and feel of blade loads,material hardness and ground speed.

Gear Selection. Eight forward and sixreverse speeds offer a wide operatingrange for maximum flexibility. Fourgears below 10.3 km/h (6.4 mph) matchworking speed to job conditions formaximum productivity in earthmovingjobs. Gears five, six and seven areoptimal for efficient snow removaloperations. Gear 8 is designedfor roading.

Electronic Transmission Control.Produces easy, smooth shifts tomaintain uniform surfaces duringshifting, and extends transmission lifeby reducing stress on transmissionclutches. A single lever controlsdirection, gear and the parking brake.

Electronic Clutch Pressure Control.ECPC smoothes shifts and improvesinching control, which increasesoperator comfort and productivity.It uses input from the transmissionand operator controls to modulatethe directional clutches and produceconsistent shifting.

Electronic Overspeed Protection.The transmission control upshiftsthe transmission to relieve overspeedconditions. The transmission controlwill also prevent a downshift untilmachine speed is within the range forthe requested gear. This can preventdamage and reduce component wear.

Inching Pedal. Delivers precise controlof machine movements in any gearwith low pedal effort and excellentmodulation, critical in close-quarterwork or finish grading. A new pedaldesign and location improves modulationand operator comfort.

Optional Autoshift. Improves ease ofoperation and maximizes productivityby automatically shifting the transmissionat optimal shift points.

Dual Certified Air Tanks. Supply brakingcapacity to each side of the machine.This system ensures secondary brakingcapability in the event a failure occursin a single brake line. The dual airsystem also has a large reserve forstalled-engine braking.

Oil-Disc Brakes. Caterpillar multi-discbrakes have a large brake surface fordependable braking capability andextended life before rebuild.

Location. Brakes are located at eachtandem wheel to eliminate brakingloads on the power train and to reduceservicing time.

Brake Reliability. The completelysealed and adjustment-free brakes areoil-bathed, air-actuated and spring-released.

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Power TrainMatched Caterpillar components deliver smooth, responsive performance and reliability.

Load Sensing Hydraulics. A loadsensing variable displacement pumpand the advanced proportional prioritypressure-compensating (PPPC, ortriple-PC) hydraulic valves providesuperior implement control andenhanced machine performance andefficiency. Continuously matchinghydraulic flow and pressure to powerdemands creates less heat and reducespower consumption.

Implement Control Valves. PPPC valveshave different flow rates for the headand rod ends of the cylinder. This insuresconsistent extension and retractionproperties for each cylinder, and improvesoperator feel and system response.All control valves use lock valves tomaintain blade settings. Line reliefvalves protect cylinders fromexcessive pressure.

Balanced Flow. Hydraulic flow isproportioned to ensure all implementsoperate simultaneously. If demandexceeds pump capacity, all cylindersare reduced by the same ratio.The result is improved productivityin virtually any application.

Blade Float. Blade float, incorporatedinto the blade lift control valves, allowsthe blade to move freely under its ownweight. By floating both cylinders, theblade can follow the contours of theroad when removing snow. Floatingonly one cylinder permits the toe of theblade to follow a hard surface while theoperator controls the slope with theother lift cylinder.

Independent Oil Supply. Large separatehydraulic oil supply prevents cross-contamination and provides proper oilcooling, which reduces heat build-upand extends component life.

Heavy Duty XT Hose. Caterpillar hosetechnology allows high pressuresfor maximum power and reduceddowntime, and intelligent routingminimizes exposure to damage.

Optional Hydraulic Lockout.Mechanically locks all moldboard,machine, and attachment control leversduring machine roading. This preventsimplements from being accidentallyengaged when the motor grader istravelling down the road.

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HydraulicsBalanced hydraulics deliver consistent, precise and responsive control.

1 Lock valve, 2 Line relief valve, 3 Blade float detent

Blade. Heat treated moldboard rails,tough-hardened cutting edge and endbits, and large diameter bolts assurereliability and longer service life.

Blade Positioning. The blade linkagedesign provides extensive moldboardpositioning, most beneficial in mid-range bank sloping and in ditch cuttingand cleaning.

Blade Angle. A long wheelbase allowsthe