657G

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat® Wheel Tractor-Scrapers to deliver a high rate of productivity.


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


Tractor Engine
Flywheel Power - Tractor/Scraper 447 kW (600 hp) / 337 kW (451 hp)
Net Power 421/447 kW 564/600 hp
Gross Power - Gears 1-2 596 HP
Gross Power - Gears 3-8 632 HP
Net Power - Gears 1-2 564 HP
Net Power - Gears 3-8 600 HP
Bore 5.7 in
Stroke 7.2 in
Displacement 1105 in³


Scraper Engine
Net Power 306/337 kW 410/451 hp
Gross Power - Gears 1-2 437 HP
Gross Power - Gears 3-8 478 HP
Net Power - Gears 1-2 410 HP
Net Power - Gears 3-8 451 HP
Bore 5.5 in
Stroke 6.5 in
Displacement 928 in³


Scraper Bowl
Scraper Capacity - Heaped 44 yd³
Rated Load 104000 lb
Capacity - Struck 32 yd³
Depth of Cut - Maximum 17 in
Width - Cut - To Router Bits 12.7 in
Ground Clearance - Maximum 23 in
Cutting Edge Thickness 1.8 in
Hyd. Penetration Force - 657G 121000 lb
Depth of Spread - Maximum 26 in
Apron Opening 92 in
Apron Closure Force 39200 lb


Transmission
Top Speed - Loaded 33 mile/h
1 Forward 3.5 mile/h
2 Forward 6.3 mile/h
3 Forward 7.8 mile/h
4 Forward 10.6 mile/h
5 Forward 14.1 mile/h
6 Forward 19 mile/h
7 Forward 25.6 mile/h
8 Forward 34.6 mile/h
Reverse 6.1 mile/h


Hydraulics
Bowl Cylinder Bore 9.25 in
Bowl Cylinder Stroke 37.4 in
Apron Cylinder Bore 9.25 in
Apron Cylinder Stroke 29.92 in
Ejector Cylinder Bore 10.24 in
Ejector Cylinder Stroke 76.61 in
Steering Circuit 99.9 gal/min
Scraper Circuit 153 gal/min
Cushion Hitch Circuit 12.7 gal/min
Secondary Steering Circuit 64.2 gal/min
Relief Valve - Steering Circuit 1959 psi
Relief Valve - Implement Circuit 1999 psi
Compensator Settings - Cushion Hitch Circuit 3002 psi


Steering
Width - 180° Turn - Right 44.62 ft
Width - 180° Turn - Left 47.57 ft
Steering Angle - Right 90°
Steering Angle - Left 85°


Service Refill Capacities - Tractor
Crankcase 17 gal (US)
Transmission 36 gal (US)
Differential 36 gal (US)
Final Drive - Each 6 gal (US)
Cooling System 33 gal (US)
Hydraulic Reservoir 80 gal (US)
Wheel Coolant - Each 34.3 gal (US)
Windshield Washer 0.5 gal (US)


Service Refill Capacities - Scraper
Fuel Tank - 657G 421.9 gal (US)
Crankcase 10 gal (US)
Transmission 32 gal (US)
Differential 44 gal (US)
Final Drive - Each 7.9 gal (US)
Wheel Coolant - Each 34.3 gal (US)
Cooling System 24 gal (US)


Dimensions
Width - Overall Machine 171 in
Width - Tractor 141.77 in
Width - Rear Tire Center Lines 110.75 in
Width - Inside of Bowl 145 in
Width - Outside Bowl - Shipping Width 154 in
Height - Overall Shipping 185.4 in
Height - Top of Cab 146.14 in
Ground Clearance - Tractor 25.39 in
Front of Tractor to Front Axle 148.4 in
Axle to Vertical Hitch Pin 23.94 in
Height - Scraper Blade Maximum 26.77 in
Wheel Base 391.97 in
Length - Overall Machine 636.38 in
Rear Axle - Rear of Machine 95.98 in
Bail Length - Maximum (Push-Pull) 72.28 in


Weights - Standard, Tandem
Total Shipping 147959 lb
Tractor Shipping 87717 lb
Scraper Shipping 60242 lb
Total Operating - Empty 150761 lb
Front Axle 87924 lb
Rear Axle 62837 lb
Total Operating - Loaded 254761 lb
Front Axle Weight - Loaded 128246 lb
Rear Axle - Weight - Loaded 126515 lb


Weights - Push-Pull
Total Shipping 160505 lb
Tractor Shipping 93635 lb
Scraper Shipping 64068 lb
Total Operating - Empty 160505 lb
Front Axle 93842 lb
Rear Axle 66663 lb
Total Operating - Loaded 264505 lb
Front Axle - Loaded 134165 lb
Rear Axle - Loaded 130340 lb


BENEFITS & FEATURES
Operator Station



Power Train - Engine



Power Train - Transmission



Electronic Controls



Cushion Hitch



Scraper Bowl



Coal Bowl



Push-Pull



Serviceability



Support



EQUIPMENT
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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