2021 Doosan 140 tracked excavator Quick hitch Hammer pipe work Air con ...
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Cat® Wheel Tractor-Scraper 657 twin engine has the power to boost productivity by utilize push-pull loading. Combine this ability with improvements in productivity, enhancements in operator comfort, and new safety features – Powered Access System and effective wet disc brakes – and you have a machine offering high returns on profit and time.
Tractor Engine
Cat C18
Scraper Engine
Cat C15
Flywheel Power – Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Product specifications for 657 Open Bowl Scrapers
Engine
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Tractor Engine
Cat C18
Scraper Engine
Cat C15
Tractor Engine
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Flywheel Power – Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Net Power
469 kW/637 hp
Gross Power (SAE J1995)
475 kW
Net Power (ISO 14396)
469 kW
Net Power (SAE J1349/ISO 9249)
436 kW
Bore
145 mm
Stroke
183 mm
Displacement
18.1 l
Net Power (SAE J1349/ISO 9249)
436 kW
Scraper Engine
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Net Power
353 kW/447 hp
Gross Power (SAE J1995)
359 kW
Net Power (ISO 14396)
353 kW
Net Power (SAE J1349/ISO 9249)
333 kW
Bore
137.2 mm
Stroke
171.5 mm
Displacement
15.2 l
Scraper Bowl
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Scraper Capacity – Heaped
33.6 m³
Rated Load
47200 kg
Capacity – Struck
24.5 m³
Depth of Cut – Maximum
417 mm
Width – Cut – To Router Bits
3.8 m
Ground Clearance – Maximum
0.7 m
Hyd. Penetration Force – 657G
542 kN
Depth of Spread – Maximum
660 mm
Apron Opening
2337 mm
Apron Closure Force
176 kN
Transmission
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Top Speed – Loaded
56.1 km/h
1 Forward
5.7 km/h
2 Forward
10.5 km/h
3 Forward
12.5 km/h
4 Forward
17 km/h
5 Forward
22.8 km/h
6 Forward
30.9 km/h
7 Forward
41.4 km/h
8 Forward
56.1 km/h
Reverse
10.8 km/h
Hydraulics
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Bowl Cylinder Bore
180 mm
Bowl Cylinder Stroke
950 mm
Apron Cylinder Bore
180 mm
Apron Cylinder Stroke
759.5 mm
Ejector Cylinder Stroke (Stage 1/ Stage 2)
973.5 mm
Steering Circuit (@ High Idle)
288 l/min
Implement Circuit (@ High Idle)
517 l/min
Cushion Hitch Circuit
74 l/min
Secondary Steering Circuit
55 l/hr
Relief Valve – Steering Circuit
13500 kPa
Relief Valve – Implement Circuit
13780 kPa
Compensator Settings – Cushion Hitch Circuit
20700 kPa
Steering
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Width – 180° Turn – Right
13.85 m
Width – 180° Turn – Left
14.5 m
Steering Angle – Right
90
Steering Angle – Left
85
Service Refill Capacities – Tractor
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Crankcase
38 l
Transmission
136 l
Differential
136 l
Final Drive – Each
29.5 l
Cooling System
88.6 l
Hydraulic Reservoir
150 l
Windshield Washer
5 l
Service Refill Capacities – Scraper
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Fuel Tank
1628 l
Crankcase
34 l
Transmission
121 l
Differential
168 l
Final Drive – Each
30 l
Cooling System
63.2 l
Dimensions
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Width – Overall Machine
4.36 m
Width – Tractor
3.75 m
Width – Rear Tire Center Lines
2.81 m
Width – Inside of Bowl
3.68 m
Width – Outside Bowl – Shipping Width
3.93 m
Height – Overall Shipping
4.66 m
Height – Top of Cab
3.92 m
Ground Clearance – Tractor
0.7 m
Front of Tractor to Front Axle
4.55 m
Axle to Vertical Hitch Pin
0.55 m
Height – Scraper Blade Maximum
0.66 m
Wheel Base
9.96 m
Length – Overall Machine
17.97 m
Rear Axle – Rear of Machine
2.46 m
Weights – Push-Pull
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Total Shipping
72804 kg
Tractor Shipping
42472 kg
Scraper Shipping
29061 kg
Total Operating – Empty
74500 kg
Front Axle
42566 kg
Rear Axle
30238 kg
Total Operating – Loaded
121700 kg
Front Axle – Loaded
60856 kg
Rear Axle – Loaded
59121 kg
BE MORE PRODUCTIVE
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BE MORE PRODUCTIVE
Up to 6% of improvements in productivity.
Advanced Productivity Electronic Control System (APECS) allow the engine and transmission to communicate on a high level.
This communication allows the machine to better utilize the power and torque the engine is producing. The net result is moving
more material.
Use Ground Speed Control to set the desired top speed and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn.
The Machine Speed Limit feature replaces Top Gear Selection.
Auto-Stall assists in quickly bringing the transmission to an operating temperature at start-up when the machine is working in a cold climate region.
Cat® Payload Estimator for scrapers is an earthmoving solution for optimal payload and jobsite efficiency. Payload Estimator achieves on-the-go weighing by using bowl lift cylinder pressure during the loaded haul segment. Payload Estimator is optimized to be used with Sequence Assist, which provides increased productivity with less operator effort.
WORK IN COMFORT
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WORK IN COMFORT
Steer with less effort with the newly designed High-Pressure Steering system.
Reduce up to 14 individual operator commands per cycle with
Sequence Assist (optional attachment).
Enjoy interior improvements and a more ergonomic work
environment with a 21% larger cab than the 657 G-Series cabs.
Intuitive, ergonomic controls with multifunction display keep operators focused on their work.
Maintain desired cab temperature with Automatic
Temperature Control.
DESIGNED FOR SAFETY
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DESIGNED FOR SAFETY
Get in and out of the cab easier with the new powered access
ladder system (optional attachment).
Enhance an operator’s awareness of site surroundings with the
optional Work Area Vision System (WAVS).
Ground level access to fuel fill and daily maintenance points.
Seat belt indicator provides visual and audible alerts when the
seatbelt is not in use.
Advanced Cushion Hitch allows the cushion hitch to prevent
end stroke by having the ability to predict end stroke events
and manage the rate of dampening, resulting in reduced hitch
maintenance and improved operator ride in rough conditions.
EASY TO OPERATE
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EASY TO OPERATE
Cat Advance Ride Management (ARM) seat suspension reduces end stroke movement of the load cylinder for a smoother ride.
Engine overspeed protection will automatically engage with no operator input when the machine is in eighth gear. The machine will assist in slowing the machine speed by canceling the throttle command and engaging the engine compression brake.
INTEGRATED CAT TECHNOLOGIES
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INTEGRATED CAT TECHNOLOGIES
Access information anytime, anywhere with Vision Link® –use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security onyour jobsite.
Product Link™ collects machine data that can be viewed online through web and mobile applications (optional attachment).
EXECUTE EFFICIENCY
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EXECUTE EFFICIENCY
The Cat C18 tractor and C15 scraper engines meets U.S. EPA Tier 4 Final or EU Stage V emission standards, contributing to lowerfuel consumption.
Using draft-arm overflow guards diverts material away from the bowl, preventing material from getting caught between the draft arms and the bowl sides.
The new tractor hydraulic on-demand fan helps assist in lower fuel consumption.
657 Standard Equipment
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NOTE
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Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL
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Alarm, backup
Alternator, 115 amp – tractor engine
Alternator, 65 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
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Air Conditioner (includes heater and defroster)
Automotive style fuse panel with fuse puller
Lunch box platform with holding strap
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, 2 piece
Scraper Engine Controls
Seat, Air Suspension, Cat Advanced Ride Management
Steering Wheel – tilt and telescoping
Storage Compartment
Transmission Hold
Windows – sliding side
Windshield – laminated glass
Windshield Wiper/Washer – front and rear
Wrist Rest/Grab Handle
POWER TRAIN
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Tractor
Scraper
OTHER STANDARD EQUIPMENT
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Tractor
Scraper
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