797 Mining Truck Introduction

Critical Success Factors to 300+ Ton TrucksCritical Success Factors to 300+ Ton TrucksShovel sizing EngineHaul Roads

•Length•Construction•Maintenance

h Tires•Capabilities•Life & cost

Repair & maintenance cost

Why 360 Ton Nominal?Why 360 Ton Nominal?

0.0%

0.5%

1.0%

1.5%

2.0%

2.5%

3.0%

3.5%

4.0%

4.5%

55 60 65 70 75 80 85 90 95 100 105 110 115

Bucket Payload (tons/pass)

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Scaled weights900 passes10 faces/5 minesCoal, Copper, Oil Sand

84.9 tons/pass avg.9.6 tons std. dev.

797 Mining Truck797 Mining Truck1,230,000 lb GMW360 lb/Gross HP = 793C3400 Gross HP = 3524B360 Nominal Payload29% Stall Grade40 mph Top Speed3700 HP Continuous RetardingDimensions

30’ Wide24’ High48’ Long

Steering Diameter - 105’

797 vs. 793 Profile797 vs. 793 Profile

797 vs. 793 Front797 vs. 793 Front

793 vs. 797793 vs. 797

797 Cast Frame797 Cast Frame

797 4-Bar Linkage797 4-Bar Linkage

797 Banjo/4-Bar Linkage797 Banjo/4-Bar Linkage

797 Engine Specification797 Engine Specification

• 3524B Engine

– 2x 3512B Blocks(s) Coupled Front to Back– Long Stroke (20mm)– 1750Rpm Rated Engine Speed– Parallel Turbos (4)– BMEP (rated psi) 216– BSFC (g/kw-hr) 204

3524B Engine3524B Engine

797 Electronic System797 Electronic System

Future Future Future

Powertrain SpecificationsPowertrain Specifications

• Drive Train– New Torque Converter (More Efficient) – New Transmission (7 spd - 27” Clutch-ECPC)– New Differential (Rear Mt.-Dry Sump-Carrier)– New Wheel Station (Gears-Bearings-Service)– New Brakes (All Hydraulic - Improved Retarding)– Rims (Better Serviceability - Outer Tire)

797 Torque Converter797 Torque Converter

797 Transmission797 Transmission

797 Differential797 Differential

797 Braking System797 Braking System

• Oil Cooled (880 gal/min)• All Hydraulic Controls• Larger & Thicker Discs• Larger & Thicker Plates• Cooling is Electronically Controlled

Operator’s StationOperator’s Station

• Two Full Seats• 14” Wider• Electric Windows• Tilt/Telescoping• New VIMS• Quieter• More Storage

797 Body797 Body

Cat 797 Mining Truck Objective:Cat 797 Mining Truck Objective:

• Improve Haulage Cost Per Ton

• Longer Component Life

• Purpose Built Components

• Durable

• Clean Sheet Design