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657G

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Overview

Responsible, productive earthmoving machines, built to last.

Engine

  • Tractor Engine Cat® C18 ACERT™ Cat® C18 ACERT™
  • Scraper Engine Cat C15 ACERT Cat C15 ACERT

Tractor Engine

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

Scraper Engine

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

Scraper Bowl

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

Transmission

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

Hydraulics

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

Steering

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

Service Refill Capacities - Tractor

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

Service Refill Capacities - Scraper

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

Dimensions

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

Weights - Standard, Tandem

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

Weights - Push-Pull

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

Operator Station

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Power Train - Engine

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Power Train - Transmission

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Electronic Controls

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Cushion Hitch

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Scraper Bowl

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Coal Bowl

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Push-Pull

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Serviceability

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Support

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657G Standard 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

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