657 Wheel Tractor-Scraper

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Description

Technical Specifications

Benefits and Features

Equipment

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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.

Engine
Tractor Engine	Cat C18
Scraper Engine	Cat C15
Tractor Engine
Flywheel Power - Tractor/Scraper	469kW (629 hp) / 353 kW (473 hp)
Net Power	469 kW/637 hp
Gross Power (SAE J1995)	637 hp
Net Power (ISO 14396)	637 hp
Net Power (SAE J1349/ISO 9249)	584 hp
Net Power (SAE J1349/ISO 9249)	592 hp
Bore	5.7 in
Stroke	7.2 in
Displacement	1105 in³
Scraper Bowl
Scraper Capacity - Heaped	44 yd³
Rated Load	104058 lb
Capacity - Struck	32 yd³
Depth of Cut - Maximum	16.4 in
Width - Cut - To Router Bits	12.5 ft
Ground Clearance - Maximum	2.3 ft
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	6.5 mile/h
3 Forward	7.8 mile/h
4 Forward	10.6 mile/h
5 Forward	14.2 mile/h
6 Forward	19.2 mile/h
7 Forward	25.7 mile/h
8 Forward	34.9 mile/h
Reverse	6.7 mile/h
Scraper Engine
Net Power	353 kW/447 hp
Gross Power (SAE J1995)	481 hp
Net Power (ISO 14396)	480 hp
Net Power (SAE J1349/ISO 9249)	415 hp
Bore	5.4 in
Stroke	6.75 in
Displacement	928 in³
Weights - Push-Pull
Total Shipping	160505 lb
Tractor Shipping	93635 lb
Scraper Shipping	64068 lb
Total Operating - Empty	164244 lb
Front Axle	93842 lb
Rear Axle	66663 lb
Total Operating - Loaded	268302 lb
Front Axle - Loaded	134165 lb
Rear Axle - Loaded	130340 lb
Dimensions
Width - Overall Machine	14.3 ft
Width - Tractor	12.3 ft
Width - Rear Tire Center Lines	9.21 ft
Width - Inside of Bowl	12.07 ft
Width - Outside Bowl - Shipping Width	12.98 ft
Height - Overall Shipping	15.29 ft
Height - Top of Cab	12.86 ft
Ground Clearance - Tractor	2.3 ft
Front of Tractor to Front Axle	14.93 ft
Axle to Vertical Hitch Pin	1.8 ft
Height - Scraper Blade Maximum	2.17 ft
Wheel Base	32.68 ft
Length - Overall Machine	58.96 ft
Rear Axle - Rear of Machine	8.07 ft
Steering
Width - 180° Turn - Right	45.4 ft
Width - 180° Turn - Left	47.57 ft
Steering Angle - Right	90
Steering Angle - Left	85
Service Refill Capacities - Tractor
Crankcase	13.7 gal (US)
Transmission	35.9 gal (US)
Differential	36 gal (US)
Final Drive - Each	6 gal (US)
Cooling System	23.4 gal (US)
Hydraulic Reservoir	39.6 gal (US)
Windshield Washer	0.5 gal (US)
Hydraulics
Bowl Cylinder Bore	7.08 in
Bowl Cylinder Stroke	37.4 in
Apron Cylinder Bore	7.08 in
Apron Cylinder Stroke	29.92 in
Ejector Cylinder Stroke (Stage 1/ Stage 2)	38.32 in
Steering Circuit (@ High Idle)	76.08 gal/min
Implement Circuit (@ High Idle)	517 l/min
Cushion Hitch Circuit	19.54 gal/min
Secondary Steering Circuit	14.52 gal/hr
Relief Valve - Steering Circuit	1959 psi
Relief Valve - Implement Circuit	1999 psi
Compensator Settings - Cushion Hitch Circuit	3002 psi
Service Refill Capacities - Scraper
Fuel Tank	430 gal (US)
Crankcase	8.9 gal (US)
Transmission	31.9 gal (US)
Differential	44 gal (US)
Final Drive - Each	7.8 gal (US)
Cooling System	16.6 gal (US)

BE MORE PRODUCTIVE

Advanced Productivity Electronic Control System (APECS) allows 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 job site 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

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

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

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

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

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.