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Overview

Responsible, productive earthmoving machines, built to last.

Engine

Units:
Tractor Engine Cat® C18 ACERT™ Cat® C18 ACERT™ Less
Scraper Engine Cat C15 ACERT Cat C15 ACERT Less

Tractor Engine

Flywheel Power - Tractor/Scraper 447 kW (600 hp) / 337 kW (451 hp) 447 kW (600 hp) / 337 kW (451 hp) Less
Net Power 421/447 kW 564/600 hp 421/447 kW 564/600 hp Less
Gross Power - Gears 1-2 596.0 mm H2O 445.0 kg/mm Less
Gross Power - Gears 3-8 632.0 mm H2O 471.0 kg/mm Less
Net Power - Gears 1-2 564.0 mm H2O 421.0 kg/mm Less
Net Power - Gears 3-8 600.0 mm H2O 447.0 kg/mm Less
Bore 5.7 in 145.0 mm Less
Stroke 7.2 in 183.0 mm Less
Displacement 1105.0 in³ 18.1 l Less

Scraper Engine

Net Power 306/337 kW 410/451 hp 306/337 kW 410/451 hp Less
Gross Power - Gears 1-2 437.0 mm H2O 326.0 kg/mm Less
Gross Power - Gears 3-8 478.0 mm H2O 356.0 kg/mm Less
Net Power - Gears 1-2 410.0 mm H2O 306.0 kg/mm Less
Net Power - Gears 3-8 451.0 mm H2O 337.0 kg/mm Less
Bore 5.5 in 140.0 mm Less
Stroke 6.5 in 165.0 mm Less
Displacement 928.0 in³ 15.2 l Less

Scraper Bowl

Scraper Capacity - Heaped 44.0 yd³ 33.6 m³ Less
Rated Load 104000.0 lb 47174.0 null Less
Capacity - Struck 32.0 yd³ 24.5 m³ Less
Depth of Cut - Maximum 17.0 in 440.0 mm Less
Width - Cut - To Router Bits 12.7 in 3846.0 mm Less
Ground Clearance - Maximum 23.0 in 580.0 mm Less
Cutting Edge Thickness 1.8 in 45.0 mm Less
Hyd. Penetration Force - 657G 121000.0 lb 542.0 kN Less
Depth of Spread - Maximum 26.0 in 660.0 mm Less
Apron Opening 92.0 in 2337.0 mm Less
Apron Closure Force 39200.0 lb 176.0 kN Less

Transmission

Top Speed - Loaded 33.0 mile/h 55.7 km/h Less
1 Forward 3.5 mile/h 5.6 km/h Less
2 Forward 6.3 mile/h 10.2 km/h Less
3 Forward 7.8 mile/h 12.5 km/h Less
4 Forward 10.6 mile/h 17.0 km/h Less
5 Forward 14.1 mile/h 22.7 km/h Less
6 Forward 19.0 mile/h 30.6 km/h Less
7 Forward 25.6 mile/h 41.2 km/h Less
8 Forward 34.6 mile/h 55.7 km/h Less
Reverse 6.1 mile/h 9.8 km/h Less

Hydraulics

Bowl Cylinder Bore 9.25 in 235.0 mm Less
Bowl Cylinder Stroke 37.4 in 950.0 mm Less
Apron Cylinder Bore 9.25 in 235.0 mm Less
Apron Cylinder Stroke 29.92 in 760.0 mm Less
Ejector Cylinder Bore 10.24 in 260.0 mm Less
Ejector Cylinder Stroke 76.61 in 1946.0 mm Less
Steering Circuit 99.9 gal/min 378.0 l/min Less
Scraper Circuit 153.0 gal/min 579.0 l/min Less
Cushion Hitch Circuit 12.7 gal/min 48.0 l/min Less
Secondary Steering Circuit 64.2 gal/min 243.0 l/min Less
Relief Valve - Steering Circuit 1959.0 psi 13500.0 kPa Less
Relief Valve - Implement Circuit 1999.0 psi 13780.0 kPa Less
Compensator Settings - Cushion Hitch Circuit 3002.0 psi 20700.0 kPa Less

Steering

Width - 180° Turn - Right 44.62 ft 13.6 m Less
Width - 180° Turn - Left 47.57 ft 14.5 m Less
Steering Angle - Right 90° 90° Less
Steering Angle - Left 85° 85° Less

Service Refill Capacities - Tractor

Crankcase 17.0 gal (US) 64.0 l Less
Transmission 36.0 gal (US) 136.0 l Less
Differential 36.0 gal (US) 136.0 l Less
Final Drive - Each 6.0 gal (US) 23.0 l Less
Cooling System 33.0 gal (US) 125.0 l Less
Hydraulic Reservoir 80.0 gal (US) 303.0 l Less
Wheel Coolant - Each 34.3 gal (US) 130.0 l Less
Windshield Washer 0.5 gal (US) 2.0 l Less

Service Refill Capacities - Scraper

Fuel Tank - 657G 421.9 gal (US) 1597.0 l Less
Crankcase 10.0 gal (US) 38.0 l Less
Transmission 32.0 gal (US) 121.0 l Less
Differential 44.0 gal (US) 168.0 l Less
Final Drive - Each 7.9 gal (US) 30.0 l Less
Wheel Coolant - Each 34.3 gal (US) 130.0 l Less
Cooling System 24.0 gal (US) 89.0 l Less

Dimensions

Width - Overall Machine 171.0 in 4344.0 mm Less
Width - Tractor 141.77 in 3601.0 mm Less
Width - Rear Tire Center Lines 110.75 in 2813.0 mm Less
Width - Inside of Bowl 145.0 in 3683.0 mm Less
Width - Outside Bowl - Shipping Width 154.0 in 3914.0 mm Less
Height - Overall Shipping 185.4 in 4710.0 mm Less
Height - Top of Cab 146.14 in 3712.0 mm Less
Ground Clearance - Tractor 25.39 in 645.0 mm Less
Front of Tractor to Front Axle 148.4 in 3770.0 mm Less
Axle to Vertical Hitch Pin 23.94 in 608.0 mm Less
Height - Scraper Blade Maximum 26.77 in 680.0 mm Less
Wheel Base 391.97 in 9956.0 mm Less
Length - Overall Machine 636.38 in 16164.0 mm Less
Rear Axle - Rear of Machine 95.98 in 2438.0 mm Less
Bail Length - Maximum (Push-Pull) 72.28 in 1836.0 mm Less

Weights - Standard, Tandem

Total Shipping 147959.0 lb 67113.0 null Less
Tractor Shipping 87717.0 lb 39788.0 null Less
Scraper Shipping 60242.0 lb 27325.0 null Less
Total Operating - Empty 150761.0 lb 68384.0 null Less
Front Axle 87924.0 lb 39881.0 null Less
Rear Axle 62837.0 lb 28503.0 null Less
Total Operating - Loaded 254761.0 lb 115558.0 null Less
Front Axle Weight - Loaded 128246.0 lb 58172.0 null Less
Rear Axle - Weight - Loaded 126515.0 lb 57386.0 null Less

Weights - Push-Pull

Total Shipping 160505.0 lb 72804.0 null Less
Tractor Shipping 93635.0 lb 42472.0 null Less
Scraper Shipping 64068.0 lb 29061.0 null Less
Total Operating - Empty 160505.0 lb 72804.0 null Less
Front Axle 93842.0 lb 42566.0 null Less
Rear Axle 66663.0 lb 30238.0 null Less
Total Operating - Loaded 264505.0 lb 119978.0 null Less
Front Axle - Loaded 134165.0 lb 60856.0 null Less
Rear Axle - Loaded 130340.0 lb 59121.0 null Less

Operator Station

Operator Station

Operator Station

Operator Station

Power Train - Engine

Power Train - Engine

Power Train - Engine

Power Train - Engine

Power Train - Transmission

Power Train - Transmission

Power Train - Transmission

Power Train - Transmission

Electronic Controls

Electronic Controls

Electronic Controls

Electronic Controls

Cushion Hitch

Cushion Hitch

Scraper Bowl

Scraper Bowl

Scraper Bowl

Scraper Bowl

Scraper Bowl

Scraper Bowl

Scraper Bowl

Coal Bowl

Coal Bowl

Push-Pull

Push-Pull

Serviceability

Serviceability

Serviceability

Serviceability

Support

Support

Support

Support

Support

Support

Support

657GStandard Equipment

ELECTRICAL
  • Alarm, backup
  • Alternator, 80 amp - tractor engine
  • Alternator, 50 amp - scraper engine
  • Batteries Tractor (4), 12V Maintenance Free, High Output
  • Batteries Scraper (4), 12V Maintenance Free, High Output
  • Electrical System, 24V
  • Lighting System - Tractor
  • Lighting System - Scraper
  • Starting Receptacle - tractor and scraper engines

OPERATOR ENVIRONMENT
  • Air Conditioner (includes heater and defroster)
  • Automotive style fuse panel with fuse puller
  • Cigarette Lighter and Ashtray
  • Coat Hook
  • Cup holder
  • Diagnostic Connection Port (12V)
  • Dome Courtesy Light
  • Engine speed lock
  • Fan defroster
  • Gauge Group
  • Horn
  • Implement Control Joystick
  • Rearview Mirrors
  • Radio Ready
  • 2 radio openings, speakers, and 5-amp converter
  • ROPS Cab with Sound Suppression and Pressurization
  • Static Seatbelt
  • Scraper Engine Controls
  • Seat, Air Suspension, Caterpillar Comfort, cloth
  • Steering Wheel - tilt and telescoping
  • Storage Compartment
  • Transmission Hold
  • Windows - sliding side, swing out
  • Windshield - laminated glass
  • Windshield Wiper/Washer - front and rear
  • Wrist Rest/Grab Handle

POWER TRAIN
  • Tractor
  • Scraper

OTHER STANDARD EQUIPMENT
  • Tractor
  • Scraper